P8B75-M LX PLUS
Motherboard
E7517
First Edition
July 2012
Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.
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ii
Contents
Safety information ...................................................................................... vi
About this guide ......................................................................................... vi
P8B75-M LX PLUS specications summary .......................................... viii
Product introduction
1.1 Special features ............................................................................ 1-1
1.1.1 Product highlights ...........................................................
1.1.2 ASUS Exclusive features ................................................
1.2 Before you proceed .....................................................................
1.3 Motherboard overview .................................................................
1.3.1 Placement direction ........................................................
1.3.2 Screw holes ....................................................................
1.3.3 Motherboard layout .........................................................
1.3.4 Layout contents ...............................................................
1.4 Central Processing Unit (CPU) ...................................................
1.4.1 Installing the CPU .........................................................
1.4.2 CPU heatsink and fan assembly installation .................
1.5 System memory .........................................................................
1.5.1 Overview .......................................................................
1.5.2 Memory congurations ..................................................
1.5.3 Installing a DIMM ..........................................................
1.5.4 Removing a DIMM ........................................................
1.6 Expansion slots ..........................................................................
1.6.1 Installing an expansion card .........................................
1.6.2 Conguring an expansion card .....................................
1.6.3 PCI slot .........................................................................
1.6.4 PCI Express 2.0 x1 slots ...............................................
1.7 Jumpers ......................................................................................
1.6.5 PCI Express 3.0/2.0 x16 slots .......................................
1.8 Connectors .................................................................................
1.8.1 Rear panel connectors ..................................................
1.8.2 Internal connectors .......................................................
1.9 Onboard LEDs ............................................................................
1-1
1-2
1-5
1-5
1-5
1-6
1-7
1-8
1-9
1-10
1-12
1-14
1-14
1-14
1-20
1-20
1-21
1-21
1-21
1-21
1-21
1-22
1-22
1-23
1-23
1-25
1-32
iii
Contents
1.10 Software support ........................................................................ 1-33
1.10.1 Installing an operating system ......................................
1.10.2 Support DVD information ..............................................
®
1.10.3 Intel
BIOS information
2.1 Managing and updating your BIOS ............................................ 2-1
2.1.1 ASUS Update utility ........................................................
2.1.2 ASUS EZ Flash 2 ............................................................
2.1.3 ASUS CrashFree BIOS 3 utility ......................................
2.1.4 ASUS BIOS Updater .......................................................
2.2 BIOS setup program ....................................................................
BIOS menu screen ......................................................................... 2-7
2.3 Main menu ..................................................................................
2.3.1 System Language [English] ..........................................
2.3.2 System Date [Day xx/xx/xxxx] .......................................
2.3.3 System Time [xx:xx:xx] .................................................
2.3.4 Security .........................................................................
2.4 Ai Tweaker menu ........................................................................
2.4.1 ASUS MultiCore Enhancement [Enabled] ....................
2.4.2 Memory Frequency [Auto] .............................................
2.4.3 GPU Boost [OK] ............................................................
2.4.4 DRAM Timing Control ...................................................
2.4.5 CPU Power Management .............................................
2.5 Advanced menu .........................................................................
2.5.1 CPU Conguration ........................................................
2.5.2 PCH Conguration ........................................................
2.5.3 SATA Conguration .......................................................
2.5.4 System Agent Conguration .........................................
2.5.5 AMT Conguration ........................................................
2.5.6 USB Conguration ........................................................
2.5.7 Onboard Devices Conguration ....................................
2.5.8 APM ..............................................................................
2.5.9 Network Stack ...............................................................
SBA support ........................................................ 1-34
1-33
1-33
2-1
2-2
2-3
2-4
2-6
2-10
2-10
2-10
2-10
2-10
2-12
2-12
2-12
2-13
2-13
2-16
2-17
2-18
2-19
2-20
2-21
2-22
2-23
2-24
2-25
2-25
iv
Contents
2.6 Monitor menu ............................................................................. 2-26
2.6.1 CPU Temperature / MB Temperature
2.6.2 CPU / Chassis / Power Fan Speed ..............................
2.6.3 CPU Q-Fan Control [Enabled] ......................................
2.6.4 Chassis Q-Fan Control [Enabled] .................................
2.6.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage ..
2.6.6 Anti Surge Support [Enabled] .......................................
2.7 Boot menu ..................................................................................
2.7.1 Bootup NumLock State [On] .........................................
2.7.2 Full Screen Logo [Enabled] ...........................................
2.7.3 Wait for ‘F1’ If Error [Enabled] .......................................
2.7.4 Option ROM Messages [Force BIOS] ...........................
2.7.5 Setup Mode [EZ Mode] .................................................
2.7.6 UEFI/Legacy Boot [Enabled both UEFI and Legacy] ....
2.7.7 PCI ROM Priority [Legacy ROM] ..................................
2.7.8 Boot Option Priorities ....................................................
2.7.9 Boot Override ................................................................
2.8 Tools menu .................................................................................
2.8.1 ASUS EZ Flash 2 Utility ................................................
2.8.2 ASUS O.C. Prole .........................................................
2.8.3 ASUS SPD Information .................................................
2.9 Exit menu ....................................................................................
[xxxºC/xxxºF] ...... 2-26
2-26
2-27
2-27
2-28
2-28
2-29
2-29
2-29
2-30
2-30
2-30
2-30
2-30
2-30
2-30
2-31
2-31
2-31
2-31
2-32
Appendices
Notices .......................................................................................................A-1
ASUS contact information .......................................................................A-3
v
Safety information
Electrical safety
•
To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
When adding or removing devices to or from the system, ensure that the power cables
•
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
Before connecting or removing signal cables from the motherboard, ensure that all
•
power cables are unplugged.
Seek professional assistance before using an adapter or extension cord. These devices
•
could interrupt the grounding circuit.
Ensure that your power supply is set to the correct voltage in your area. If you are not
•
sure about the voltage of the electrical outlet you are using, contact your local power
company.
If the power supply is broken, do not try to x it by yourself. Contact a qualied service
•
technician or your retailer.
Operation safety
Before installing the motherboard and adding components, carefully read all the manuals
•
that came with the package.
Before using the product, ensure all cables are correctly connected and the power
•
cables are not damaged. If you detect any damage, contact your dealer immediately.
To avoid short circuits, keep paper clips, screws, and staples away from connectors,
•
slots, sockets and circuitry.
Avoid dust, humidity, and temperature extremes. Do not place the product in any area
•
where it may be exposed to moisture.
Place the product on a stable surface.
•
If you encounter technical problems with the product, contact a qualied service
•
technician or your retailer.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports. It includes descriptions of the switches, jumpers, and connectors on the
motherboard.
• Chapter 2: BIOS information
This chapter discusses changing system settings through the BIOS Setup menus.
Detailed descriptions fo the BIOS parameters are also provided.
vi
Where to nd more information
Refer to the following sources for additional information and for product and software
updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when
completing a task.
CAUTION: Information to prevent damage to the components when
completing a task
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text Indicates a menu or an item to select.
Italics
<Key> Keys enclosed in the less-than and greater-than sign
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
Used to emphasize a word or a phrase.
means that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
names are linked with a plus sign (+).
vii
P8B75-M LX PLUS specications summary
CPU LGA1155 socket for Intel® 3rd / 2nd Generation Core™ i7 / i5 / i3 / Pentium®
/ Celeron® processors
Supports Intel 22/32nm CPU
Supports Intel® Turbo Boost Technology 2.0
* The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.
** Refer to www.asus.com for Intel® CPU support list.
Chipset Intel® B75 Express Chipset
Memory 2 x DIMM, max. 16GB, DDR3 2200(O.C.) / 2000(O.C.) /1800 (O.C.) / 1600 /
1333 / 1066 MHz, non-ECC, un-buffered memory
Dual-channel memory architecture
* Refer to www.asus.com for the latest Memory QVL (Qualied Vendors List).
** When you install a total memory of 4GB capacity or more, Windows® 32-bit
operating system may only recognize less than 3GB. We recommend a
maximum of 3GB system memory if you are using a Windows® 32-bit operating
system.
Graphics Integrated graphics processor
Multi-VGA output support: DVI-D and D-Sub ports
- Supports DVI-D with max.resolution of 1920 x 1200 @60Hz
- Supports D-Sub with max. resolution of 2048 x 1536 @75Hz
Maximum shared memory of 1 GB
Expansion slots 1 x PCI Express 3.0/2.0 x16 slot
2 x PCI Express 2.0 x1 slots
1 x PCI slot
Storage Intel® B75 Express Chipset:
- 5 x Serial ATA 3.0 Gb/s connectors (blue)
- 1 x Serial ATA 6.0 Gb/s connector (gray)
LAN
Realtek® 8111F-VB-CG Gigabit LAN controller
Audio 6+2 Channels Realtek® ALC887-VD High Denition Audio CODEC
- Supports jack-detection, multi-streaming, anti-pop function, and front
panel jack-retasking
* Use a chassis with HD audio module in the front panel to support an 8-channel
audio output.
USB 4 x USB 3.0/2.0 ports (2 ports at midboard, 2 ports at back panel)
8 x USB 2.0/1.1 ports (4 ports at midboard, 4 ports at back panel)
viii
(continued on the next page)
P8B75-M LX PLUS specications summary
ASUS unique features
ASUS Exclusive Features:
- ASUS GPU Boost
- ASUS USB 3.0 Boost
- Network iControl
- ASUS AI Suite II
- AI Charger
- ASUS Anti-Surge Protection
- ASUS UEFI BIOS
ASUS Quiet Thermal Solution:
- ASUS Fan Xpert
ASUS EZ DIY:
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS MyLogo 2™
Other features
- 100% All high-quality conductive polymer capacitors
Rear panel I/O ports 1 x PS/2 keyboard/mouse combo port (purple/green)
1 x DVI-D port
1 x D-Sub port
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports
3 x Audio jacks
Internal connectors/
switches/ buttons
1 x USB 3.0 connector supports additional 2 USB 3.0 ports
2 x USB 2.0 connectors support additional 4 USB 2.0 ports
5 x SATA 3.0 Gb/s connectors
1 x SATA 6.0 Gb/s connector
1 x CPU fan connector
1 x Chassis fan connectors
1 x Front panel audio connector (AAFP)
1 x System panel connector
1 x Speaker connector
1 x 24-pin ATX power connector
1 x 4-pin ATX 12V power connector
(continued on the next page)
ix
P8B75-M LX PLUS specications summary
BIOS features 128 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5,
Manageability
Accessories 1 x Serial ATA 3.0Gb/s cable
Support DVD Drivers
Form factor
* Specications are subject to change without notice.
ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree
BIOS 3
WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
1 x Serial ATA 6.0Gb/s cable
1 x I/O shield
1 x User Manual
1 x Support DVD
ASUS utilities
ASUS Update
Anti-virus software (OEM version)
MicroATX form factor: 9.6”x 6.9” (24.4cm x 17.5cm)
x
Product introduction
1.1 Special features
1.1.1 Product highlights
LGA1155 socket for Intel® 3rd/2nd Generation Core™ i7 /
Core™ i5 / Core™ i3 processors
This motherboard supports the Intel® 3rd/2nd generation Core™ i7 /
Core™ i5 / Core™ i3 processors in the LGA1155 package, with memory
and PCI Express controllers integrated to support dual-channel (2
DIMMs) DDR3 memory and 16 PCI Express 3.0 lanes. This provides
great graphics performance. Intel® 3rd/2nd generation Core™ i7 /
Core™ i5 / Core™ i3 processors are among the most powerful and
energy efcient CPUs in the world.
Intel® B75 Express Chipset
The Intel® B75 Express Chipset is the latest single-chipset designed to
support the 1155 socket Intel® 3rd/2nd generation Core™ i7 / Core™ i5
/ Core™ i3 processors. It provides improved performance by utilizing
serial point-to-point links, allowing increased bandwidth and stability.
In addition, B75 chipset provides 4 USB 3.0 ports that retrieves data
10 times faster. Moreover, Intel® B75 Express Chipset also supports
iGPU function, letting users enjoy the latest Intel integrated graphic
performance.
Dual-Channel DDR3 2400(O.C.) / 2250(O.C.) / 2200(OC.) /
2133(O.C.) / 2000(O.C.) / 1866(O.C.) /1600 / 1333 / 1066MHz
support
The motherboard supports DDR3 memory that features data transfer
rates of 2400(O.C.) / 2250(O.C.) / 2200(OC.) / 2133(O.C.) / 2000(O.
C.) / 1866 / 1600 / 1333 / 1066 MHz to meet the higher bandwidth
requirements of the latest 3D graphics, multimedia, and Internet
applications. The dual-channel DDR3 architecture enlarges the
bandwidth of your system memory to boost system performance.
* Due to the behavior of Intel® 3rd Generation processor, DDR3 2250 (and
above)/2133/1866 MHz memory module will run at DDR3 2200/2000/1800 MHz frequency
as default.
1
ASUS P8B75-M LX PLUS
1-1
1.1.2 ASUS Exclusive features
Native SATA 6.0 Gb/s support
The Intel® B75 Express Chipset natively supports next-generation Serial
ATA (SATA) storage interface. This motherboard delivers up to 6.0 Gb/s
data transfer rates. Additionally, get enhanced scalability, faster data
retrieval, double the bandwidth of current bus systems.
Complete USB 3.0 Integration
ASUS facilitates strategic USB 3.0 accessibility for both the front and
rear panel – 4 USB 3.0 ports in total. Experience the latest plug &
play connectivity at speeds up to 10 times faster than USB 2.0. This
motherboard affords greater convenience to high speed connectivity.
PCI Express® 3.0
PCI Express® 3.0 (PCIe 3.0) is the latest PCI Express bus standard with
improved encoding schemes that provide twice the performance of the
current PCIe 2.0. The total bandwidth for a x16 link reaches a maximum
of 32Gb/s, double the 16 Gb/s of PCIe 2.0 (in x16 mode). As such, PCIe
3.0 provides users an unprecendented data speeds, combined with the
convenience and seamless transition offerred by complete backward
compatibility with PCIe 1.0 and PCIe 2.0 devices. PCIe 3.0 will become
a must-have feature for users who wish to improve and optimize graphic
performance, as well as have the latest technology available to them.
* PCI 3.0 speed is supported by Intel® 3rd generation Core™ processors.
ASUS UEFI BIOS
Flexible and Easy BIOS Interface
ASUS UEFI BIOS offers the rst mouse-controlled graphical BIOS
designed with selectable modes, providing a user-friendly interface
that goes beyond the traditional keyboard-only controls. It also natively
supports fully-utilized hard drives larger than 2.2TB in 64-bit operating
systems.
ASUS exclusive interface
EZ Mode displays frequently-accessed info. Users can choose system
performance settings, and drag and drop boot priorities. Advanced Mode
for performance enthusiasts includes detailed DRAM settings via a
dedicated memory info page for complete insight.
New upgrade! Quick and easy information for enhanced
system control
- F12 BIOS snapshot hotkey for sharing UEFI information and
troubleshooting
- New F3 Shortcut for frequently accessed settings.
- ASUS DRAM SPD (Serial Presence Detect) information for accessing
memory information, detecting faulty DIMMs, and helping with difcult
POST situations.
1-2
Chapter 1: Product introduction
Ai Charger
Ai Charger is a unique fast-charging software which supports iPods,
iPhones, and iPads.
* Check your USB mobile device manufacturer if it fully supports the BC 1.1 function.
** The actual charging speed may vary with your USB device’s conditions.
USB 3.0 Boost
With USB 3.0 Boost technology, a USB device’s transmission speed
is signicantly increased, adding to an already impressive USB 3.0
transfer speed. ASUS software automatically accelerates data speeds
for compatible USB 3.0 peripherals without the need for any user
interaction.
GPU Boost
Go to the Limit with iGPU Level Up!
GPU Boost accelerates the integrated GPU for extreme graphics
performance. The user-friendly interface facilitates exible frequency
adjustments. It easily delivers stable system-level upgrades for every
use.
AI Suite II
With its fast user-friendly interface, ASUS AI Suite II consolidates all the
exclusive ASUS features into one simple to use software package. It
allows you to supervise overclocking, energy management, fan speed
control, and voltage and sensor readings. This all-in-one software offers
diverse and ease to use functions, with no need to switch back and forth
between different utilities.
ASUS MyLogo 2™
Personalize your system by turning your favorite photos into 256-color
boot logos.
ASUS CrashFree BIOS 3
ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to
restore a corrupted BIOS le using the bundled support DVD or a USB
ash disk that contains the BIOS le.
ASUS P8B75-M LX PLUS
1-3
ASUS Fan Xpert
ASUS Fan Xpert intelligently allows you to adjust the CPU fan and
chassis fan speeds according to different ambient temperatures caused
by different climate conditions in different geographic regions and your
PC’s loading. The built-in variety of useful proles offer exible controls
of fan speed to achieve a quiet and cool environment.
Network iControl
With a one-click on/off button, the software currently in use is set as
top priority over all other network programs, dominating the network
bandwidth with ease. Moreover, you can prioritize your favorite software
easily by conguring proles through the intutive user interface. Within
the prole, programs can be pre-scheduled to run at a specic time
period to avoid network clogging and long-waits on downloads. Auto
PPPoE network connection gives a one-step setup and an intuitive
network bandwidth control center.
ASUS Anti-Surge Protection
This special design prevents expensive devices and the motherboard
from damage caused by power surges from switching power supply
(PSU).
C.P.R. (CPU Parameter Recall)
The BIOS C.P.R. feature automatically restores CPU default settings
when the system crashes due to overclocking failure. C.P.R. eliminates
the need to open the system chassis and clear the RTC data. Simply
shut down and reboot the system, and the BIOS automatically restores
the CPU parameters to their default settings.
ErP ready
This motherboard is European Union´s Energy-related Products (ErP)
ready, and ErP requires products to meet certain energy efciency
requirements with regard to energy consumption. This is in line with
ASUS’ vision of creating environment-friendly and energy-efcient
products through product design and innovation aimed at reducing
carbon footprint and mitigating environmental impact.
1-4
Chapter 1: Product introduction
1.2 Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due
to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the ATX power supply is
switched off or the power cord is detached from the power supply. Failure to do so
may cause severe damage to the motherboard, peripherals, or components.
1.3 Motherboard overview
Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts.
Unplug the power cord before installing or removing the motherboard. Failure to do so can
cause you physical injury and damage to motherboard components.
1.3.1 Placement direction
When installing the motherboard, place it into the chassis in the correct orientation. The edge
with external ports goes to the rear part of the chassis as indicated in the image.
ASUS P8B75-M LX PLUS
1-5
P8B75-M LX PLUS
1.3.2 Screw holes
Place six screws into the holes indicated by circles to secure the motherboard to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side
towards the rear
of the chassis
1-6
Chapter 1: Product introduction
1.3.3 Motherboard layout
P8B75-M LX PLUS
PCIEX16_1
PCIEX1_1
PCIEX1_2
PCI1
AAFP
EATXPWR
CPU_FAN
CHA_FAN
Lithium Cell
CMOS Power
Super
I/O
ALC
887
KBMS_USB34
64Mb
BIOS
64Mb
BIOS
SB_PWR
CLRTC
17.5cm(6.9in)
24.4cm(9.6in)
Intel
®
B75
DDR3 DIMM_A1 (64bit, 240-pin module)
DDR3 DIMM_B1 (64bit, 240-pin module)
SATA6G_1 SATA3G_4 SATA3G_2
SATA3G_5 SATA3G_3 SATA3G_1
AUDIO
USB3_12
LAN_USB12
LGA1155
USB3_34
DRCT
F_PANEL
SPEAKER
USB56 USB78
RTL
8111F
ATX12V
VGA
DVI
1 12 3 4
912 811 101314
2
5
6
7
5
ASUS P8B75-M LX PLUS
1-7
1.3.4 Layout contents
Connectors/Jumpers/Slots/LED Page
1. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) 1-27
2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-26
3. Intel® LGA1155 CPU socket 1-9
4. DDR3 DIMM slots 1-14
5. Intel® B75 Serial ATA 3.0Gb/s connectors (7-pin SATA3G_1~5 [blue]) 1-29
6. Intel® B75 Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1 [gray]) 1-30
7. Onboard LED (SB_PWR) 1-32
8. Speaker connector (4-pin SPEAKER) 1-29
9. System panel connector (10-1 pin F_PANEL) 1-28
10. USB 3.0 connector (20-1 pin USB3_34) 1-30
11. DRCT Connector 1-31
12. USB 2.0 connectors (10-1 pin USB56, USB78) 1-31
13. Clear RTC RAM (3-pin CLRTC) 1-22
14. Front panel audio connector (10-1 pin AAFP) 1-25
1-8
Chapter 1: Product introduction
1.4 Central Processing Unit (CPU)
Right
P8B75-M LX PLUS
P8B75-M LX PLUS CPU socket LGA1155
This motherboard comes with a surface mount LGA1155 socket designed for the Intel
3rd/2nd generation Core™ i7 / Core™ i5 / Core™ i3 / Pentium® / Celeron® processors.
Unplug all power cables before installing the CPU.
• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and
the socket contacts are not bent. Contact your retailer immediately if the PnP cap
is missing, or if you see any damage to the PnP cap/socket contacts/motherboard
components. ASUS will shoulder the cost of repair only if the damage is shipment/
transit-related.
• Keep the cap after installing the motherboard. ASUS will process Return Merchandise
Authorization (RMA) requests only if the motherboard comes with the cap on the
LGA1155 socket.
• The product warranty does not cover damage to the socket contacts resulting from
incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP
cap.
ASUS P8B75-M LX PLUS
1-9
1.4.1 Installing the CPU
A
B
The LGA1156 CPU is incompatible with the LGA1155 socket. DO NOT install a LGA1156
CPU on the LGA1155 socket.
1
2
3
1-10
Chapter 1: Product introduction
A
B
C
4
5
ASUS P8B75-M LX PLUS
1-11
1.4.2 CPU heatsink and fan assembly installation
Apply the Thermal Interface Material
to the CPU heatsink and CPU
before you install the heatsink and
fan if necessary.
To install the CPU heatsink and fan assembly
1
B
A
B
A
3
2
4
1-12
Chapter 1: Product introduction
To uninstall the CPU heatsink and fan assembly
1
2
A
B
B
A
ASUS P8B75-M LX PLUS
1-13
1.5 System memory
P8B75-M LX PLUS
P8B75-M LX PLUS 240-pin DDR3 DIMM sockets
DIMM_A1
DIMM_B1
1.5.1 Overview
This motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Module
(DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but
is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are
developed for better performance with less power consumption. The gure illustrates the
location of the DDR3 DIMM sockets:
Channel Sockets
Channel A DIMM_A1
Channel B DIMM_B1
1.5.2 Memory congurations
You may install 1GB, 2GB, 4GB and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM
sockets.
• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
• Due to Intel
MHz memory module will run at DDR3 2200/2000/1800 MHz frequency as default.
• Always install DIMMs with the same CAS latency. For optimal compatibility, we
recommend that you install memory modules of the same version or date code (D/C)
from the same vendor. Check with the retailer to get the correct memory modules.
• Due to the memory address limitation on 32-bit Windows
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:
- Use a maximum of 3GB system memory if you are using a 32-bit Windows
- Install a 64-bit Windows
®
3rd generation processors' behavior, DDR3 2250 (and above)/2133/1866
®
OS, when you install 4GB
®
motherboard.
OS if you want to install 4GB or more on the
®
OS.
1-14
Chapter 1: Product introduction
• This motherboard does not support DIMMs made up of 512 megabits (Mb) chips or
less.
• Memory modules with memory frequency higher than 2133 MHz and its
corresponding timing or the loaded X.M.P. Prole is not the JEDEC memory
standard. The stability and compatibility of these memory modules depend on the
CPU’s capabilities and other installed devices.
• The maximum 16GB memory capacity can be supported with 8GB or above DIMMs.
ASUS will update the memory QVL once the DIMMs are available in the market.
• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a
lower frequency than the vendor-marked value. To operate at the vendor-marked
or at a higher frequency, refer to section 2.4 Ai Tweaker menu for manual memory
frequency adjustment.
• For system stability, use a more efcient memory cooling system to support a full
memory load (2 DIMMs) or overclocking condition.
P8B75-M LX Motherboard Qualied Vendors Lists (QVL)
DDR3-2400 (O.C.) MHz capability
DIMM socket
Vendors Part No. Size SS/DS
CORSAIR CMGTX8(XMP) 8GB(2GB x 4) SS - - 10-12-10-27 1.65V • •
G.SKILL F3-19200CL11Q-16GBZHD(XMP1.3) 16GB(4GB x 4) DS - - 11-11-11-31 1.65V • •
G.SKILL F3-19200CL9D-4GBPIS(XMP) 4GB(2 x 2GB) DS - - 9-11-9-28 1.65V • •
GEIL GET34GB2400C9DC(XMP) 2GB DS - - 9-11-9-27 1.65V • •
KINGMAX FLLE88F-C8KKAA HAIS(XMP) 2GB SS - - 10-11-10-30 1.8V • •
Transcend TX2400KLU-4GK(427652)(XMP) 4GB(2 x 2GB) SS - - - 1.65V • •
Transcend TX2400KLU-4GK (381850)(XMP) 4GB(2 x 2GB) SS - - 9 1.65V • •
Transcend TX2400KLU-4GK(374243)(XMP) 4GB(2 x 2GB) DS - - 9 1.65V • •
PATRIOT PVV34G2400C9K(XMP) 4GB(2 x 2GB) DS - - 9-11-9-27 1.65V • •
Chip
Chip NO. Timing Voltage
Brand
support (optional)
1DIMM 2DIMMs
DDR3 1600 MHz and higher memory frequency is supported by Intel® 3rd generation
processors.
DDR3-2250 (O.C.) MHz capability
DIMM socket
Vendors Part No. Size SS/DS Chip Brand Chip NO. Timing Voltage
KINGSTON KHX2250C9D3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - - 1.65V • •
(continued on the next page)
ASUS P8B75-M LX PLUS
support (optional)
1DIMM 2DIMMs
1-15
DDR3-2200 (O.C.) MHz capability
DIMM socket
Vendors Part No. Size SS/DS Chip Brand Chip NO. Timing Voltage
G.SKILL F3-17600CL8D-4GBPS(XMP) 4GB(2 x 2GB) DS - - 8-8-8-24 1.65V
GEIL GET34GB2200C9DC(XMP) 2GB DS - - 9-10-9-28 1.65V • •
GEIL GET38GB2200C9ADC(XMP) 4GB DS - - 9-11-9-28 1.65V • •
KINGMAX FLKE85F-B8KJAA-FEIS(XMP) 2GB DS - - - - • •
KINGMAX FLKE85F-B8KHA EEIH(XMP) 4GB(2 x 2GB) DS - - - 1.5V-1.7V •
KINGMAX FLKE85F-B8KJA FEIH(XMP) 4GB(2 x 2GB) DS - - - 1.5V-1.7V • •
support (optional)
1DIMM 2DIMMs
DDR3-2133 (O.C.) MHz capability
Chip
Vendors Part No. Size SS/DS
A-DATA AX3U2133GC2G9B-DG2(XMP) 2GB SS - - 9-11-9-27 1.55~1.75V • •
CORSAIR CMT16GX3M4X2133C9(XMP 1.3) 16GB ( 4GB x4 ) DS - - 9-11-10-27 1.50V • •
CORSAIR CMT4GX3M2A2133C9(XMP) 4GB(2x 2GB) DS - - 9-10-9-24 1.65V • •
CORSAIR CMT4GX3M2B2133C9(XMP) 4GB(2x 2GB) DS - - 9-10-9-27 1.50V • •
CORSAIR CMT8GX3M2B2133C9(XMP) 8GB ( 4GB x 2) DS - - 9-11-9-27 1.50V • •
G.SKILL F3-17000CL9Q-16GBZH(XMP1.3) 16GB ( 4GB x4 ) DS - - 9-11-10-28 1.65V • •
GEIL GE34GB2133C9DC(XMP) 2GB DS - - 9-9-9-28 1.65V • •
GEIL GU34GB2133C9DC(XMP) 4GB(2 x 2GB) DS - - 9-9-9-28 1.65V • •
KINGSTON KHX2133C9AD3T1K2/4GX(XMP) 4GB ( 2x 2GB ) DS - - - 1.65V • •
KINGSTON KHX2133C9AD3X2K2/4GX(XMP) 4GB(2 x 2GB) DS - - 9-11-9-27 1.65V • •
KINGSTON KHX2133C9AD3T1K4/8GX(XMP) 8GB(4 x 2GB) DS - - 9-11-9-27 1.65V • •
KINGSTON KHX2133C9AD3T1FK4/8GX(XMP) 8GB(4x 2GB) DS - - - 1.65V • •
Brand
Chip
Timing Voltage
NO.
DIMM socket
support (optional)
1DIMM 2DIMMs
DDR3-2000 (O.C.) MHz capability
Vendors Part No. Size
Apacer 78.AAGD5.9KD(XMP) 6GB(3 x 2GB) DS - - 9-9-9-27 1.65V • •
CORSAIR CMZ4GX3M2A2000C10(XMP) 4GB(2 x 2GB) SS - - 10-10-10-27 1.50V • •
CORSAIR CMT6GX3M3A2000C8(XMP) 6GB(3 x 2GB) DS - - 8-9-8-24 1.65V • •
G.SKILL F3-16000CL9D-4GBFLS(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • •
G.SKILL F3-16000CL9D-4GBTD(XMP) 4GB(2 x 2GB) DS - - 9-9-9-27 1.65V • •
G.SKILL F3-16000CL6T-6GBPIS(XMP) 6GB (3x 2GB ) DS - - 6-9-6-24 1.65V • •
GEIL GUP34GB2000C9DC(XMP) 4GB(2 x 2GB) DS - - 9-9-9-28 1.65V
KINGSTON KHX2000C9AD3T1K2/4GX(XMP) 4GB ( 2x 2GB ) DS - - - 1.65V • •
KHX2000C9AD3W1K2/
KINGSTON
4GX(XMP)
KINGSTON KHX2000C9AD3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - 9 1.65V • •
KHX2000C9AD3W1K3/
KINGSTON
6GX(XMP)
KINGSTON KHX2000C9AD3T1K3/6GX(XMP) 6GB (3x 2GB ) DS - - - 1.65V • •
Transcend TX2000KLN-8GK(XMP) 8GB(2 x 4GB) DS - - - 1.6V • •
Asint SLA302G08-ML2HB(XMP) 4GB DS HYNIX
4GB ( 2x 2GB ) DS - - - 1.65V • •
6GB ( 3x 2GB ) DS - - - 1.65V • •
SS/DSChip
Brand
Chip NO. Timing Voltage
H5TQ2G83BFR
H9C
- - • •
DIMM socket
support (optional)
1DIMM 2DIMMs
1-16
(continued on the next page)
Chapter 1: Product introduction
DDR3-1866 (O.C.) MHz capability
Vendors Part No. Size SS/DS
CORSAIR CMT4GX3M2A1866C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • •
CORSAIR CMT6GX3MA1866C9(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.65V • •
CORSAIR CMZ8GX3M2A1866C9(XMP) 8GB(2 x 4GB) DS - - 9-10-9-27 1.50V • •
G.SKILL F3-14900CL9Q-16GBZL(XMP1.3) 16GB(4GB x 4) DS - - 9-10-9-28 1.5V • •
G.SKILL F3-14900CL10Q2-64GBZLD(XMP1.3) 64GB(8GB x 8) DS - - 10-11-10-30 1.5V • •
G.SKILL F3-14900CL9D-8GBXL(XMP) 8GB(2 x 4GB) DS - - 9-10-9-28 1.5V • •
G.SKILL F3-14900CL9Q-8GBXL(XMP) 8GB(2GB x 4) DS - - 9-9-9-24 1.6V • •
KINGSTON KHX1866C9D3T1K3/3GX(XMP) 3GB(3 x 1GB) SS - - - 1.65V • •
KINGSTON KHX1866C9D3K4/16GX(XMP) 16GB(4GB x 4) DS - - - 1.65V • •
KINGSTON KHX1866C9D3T1K3/6GX(XMP) 6GB(3 x 2GB) DS - - - 1.65V • •
KINGSTON KHX1866C11D3P1K2/8G 8GB(4GB x 2) DS - - - 1.5V • •
Chip
Chip NO. Timing Voltage
Brand
DIMM socket
support (optional)
1DIMM 2DIMMs
DDR3-1600 MHz capability
Vendors Part No. Size SS/DSChip
A-DATA AM2U16BC2P1 2GB SS A-DATA 3CCD-1509A EL1126T - - · ·
A-DATA AX3U1600XB2G79-2X(XMP) 4GB(2 x 2GB) DS - - 7-9-7-21 1.55V-1.75V · ·
A-DATA AM2U16BC4P2 4GB DS A-DATA 3CCD-1509A EL1126T - - · ·
A-DATA AX3U1600GC4G9-2G(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.55V-1.75V · ·
A-DATA AX3U1600XC4G79-2X(XMP) 8GB(2 x 4GB) DS - - 7-9-7-21 1.55V-1.75V · ·
CORSAIR TR3X3G1600C8D(XMP) 3GB(3 x 1GB) SS - - 8-8-8-24 1.65V · ·
CORSAIR CMD12GX3M6A1600C8(XMP) 12GB(6x2GB) DS - - 8-8-8-24 1.65V · ·
CORSAIR CMZ32GX3M4X1600C10(XMP) 32GB(8GBx4) DS - - 10-10-10-27 1.50V · ·
CORSAIR CMP4GX3M2A1600C8(XMP) 4GB(2 x 2GB) DS - - 8-8-8-24 1.65V · ·
CORSAIR CMP4GX3M2A1600C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V · ·
CORSAIR CMP4GX3M2C1600C7(XMP) 4GB(2 x 2GB) DS - - 7-8-7-20 1.65V · ·
CORSAIR CMX4GX3M2A1600C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V · ·
CORSAIR CMX4GX3M2A1600C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V · ·
CORSAIR TR3X6G1600C8 G(XMP) 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V · ·
CORSAIR TR3X6G1600C8D G(XMP) 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V · ·
CORSAIR TR3X6G1600C9 G(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.65V · ·
CORSAIR CMP8GX3M2A1600C9(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.65V · ·
CORSAIR CMZ8GX3M2A1600C7R(XMP) 8GB(2 x 4GB) DS - - 7-8-7-20 1.50V · ·
CORSAIR CMX8GX3M4A1600C9(XMP) 8GB(4 x 2GB) DS - - 9-9-9-24 1.65V · ·
Crucial BL25664BN1608.16FF(XMP) 6GB(3 x 2GB) DS - - - - · ·
G.SKILL F3-12800CL9D-2GBNQ(XMP) 2GB(2 x 1GB) SS - - 9-9-9-24 1.5V · ·
G.SKILL F3-12800CL7D-4GBRH(XMP) 4GB(2 x 2GB) SS - - 7-7-7-24 1.6V · ·
G.SKILL F3-12800CL7D-4GBECO(XMP) 4GB(2 x 2GB) DS - - 7-7-8-24 XMP 1.35V · ·
G.SKILL F3-12800CL7D-4GBRM(XMP) 4GB(2 x 2GB) DS - - 7-8-7-24 1.6V · ·
G.SKILL F3-12800CL8D-4GBRM(XMP) 4GB(2 x 2GB) DS - - 8-8-8-24 1.60V · ·
G.SKILL F3-12800CL9D-4GBECO(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 XMP 1.35V · ·
G.SKILL F3-12800CL9D-4GBRL(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.5V · ·
G.SKILL F3-12800CL9T-6GBNQ(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.5V~1.6V · ·
G.SKILL F3-12800CL7D-8GBRH(XMP) 8GB(2 x 4GB) DS - - 7-8-7-24 1.6V · ·
G.SKILL F3-12800CL8D-8GBECO(XMP) 8GB(2 x 4GB) DS - - 8-8-8-24 XMP 1.35V · ·
G.SKILL F3-12800CL9D-8GBRL(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.5V · ·
GEIL GET316GB1600C9QC(XMP) 16GB( 4x 4GB ) DS - - 9-9-9-28 1.6V ·
GEIL GV34GB1600C8DC(XMP) 2GB DS - - 8-8-8-28 1.6V · ·
HYNIX HMT351U6CFR8C-PB 4GB DS HYNIX H5TQ2G83CFR PBC - - · ·
Chip NO. Timing Voltage DIMM socket
Brand
support (optional)
1DIMM 2DIMMs
ASUS P8B75-M LX PLUS
(continued on the next page)
1-17
DDR3-1600 MHz capability
Vendors Part No. Size SS/DSChip
KINGMAX FLGD45F-B8MF7 MAEH(XMP) 1GB SS - - 7 - · ·
KINGMAX FLGE85F-B8KJ9A FEIS(XMP) 2GB DS - - - - · ·
KINGMAX FLGE85F-B8MF7 MEEH(XMP) 2GB DS - - 7 - · ·
KINGSTON KHX1600C9D3P1K2/4G 4GB (2 x 2GB) SS - - - 1.5V · ·
KINGSTON KHX1600C9D3K3/12GX(XMP) 12GB (3x4GB) DS - - 9-9-9-27 1.65V · ·
KINGSTON KHX1600C9D3T1BK3/12GX(XMP) 12GB (3x4GB) DS - - 9-9-9-27 1.65V · ·
KINGSTON KHX1600C9D3K4/16GX(XMP) 16GB ( 4GB
KINGSTON KHX1600C9AD3/2G 2GB DS - - - 1.65V · ·
KINGSTON KVR1600D3N11/2G-ES 2GB DS KTC D1288JPNDPLD9U 11-11-11-28 1.35V-
KINGSTON KHX1600C7D3K2/4GX(XMP) 4GB ( 2x 2GB ) DS - - - 1.65V · ·
KINGSTON KHX1600C8D3K2/4GX(XMP) 4GB (2 x 2GB) DS - - 8 1.65V · ·
KINGSTON KHX1600C8D3T1K2/4GX(XMP) 4GB (2 x 2GB) DS - - 8 1.65V · ·
KINGSTON KHX1600C9D3K2/4GX(XMP) 4GB (2 x 2GB) DS - - 9 1.65V · ·
KINGSTON KHX1600C9D3LK2/4GX(XMP) 4GB (2 x 2GB) DS - - 9 XMP
KINGSTON KHX1600C9D3X2K2/4GX(XMP) 4GB (2 x 2GB) DS - - 9-9-9-27 1.65V · ·
KINGSTON KHX1600C9D3T1K3/6GX(XMP) 6GB ( 3x 2GB ) DS - - - 1.65V · ·
KINGSTON KHX1600C9D3K3/6GX(XMP) 6GB (3 x 2GB) DS - - 9 1.65V · ·
KINGSTON KHX1600C9D3T1BK3/6GX(XMP) 6GB (3 x 2GB) DS - - 9-9-9-27 1.65V · ·
KINGSTON KHX1600C9D3K2/8GX(XMP) 8GB (2 x 4GB) DS - - 9-9-9-27 1.65V · ·
KINGSTON KHX1600C9D3P1K2/8G 8GB (2 x 4GB) DS - - - 1.5V · ·
Super Talent WA160UX6G9 6GB (3 x 2GB) DS - - 9 - · ·
Transcend JM1600KLN-8GK 8GB (4GBx2) DS Transcend TK483PCW3 - - · ·
AMD AE32G1609U1-U 2GB SS - 23EY4587MB6H11503M 9-9-9-24 1.5V · ·
AMD AE34G1609U2-U 4GB DS AMD 23EY4587MB6H11503M 9-9-9-24 1.5V · ·
ASint SLZ302G08-EGN1C 4GB SS Asint SLZ302G08-GN1C - - · ·
Asint SLZ3128M8-EGJ1D(XMP) 2GB DS Asint 3128M8-GJ1D 9-9-9-24 1.6V · ·
Asint SLA302G08-EGG1C(XMP) 4GB DS Asint 302G08-GG1C - - · ·
Asint SLA302G08-EGJ1C(XMP) 4GB DS Asint 302G08-GJ1C - - · ·
ASint SLA302G08-EGN1C 4GB DS Asint SLA302G08-GN1C - - · ·
ASint SLB304G08-EGN1B 8GB DS Asint SLB304G08-GN1B - - · ·
Elixir M2P2G64CB8HC9N-DG(XMP) 2GB DS - - - - · ·
Mushkin 998659(XMP) 6GB (3 x 2GB) DS - - 9-9-9-24 - · ·
Mushkin 998659(XMP) 6GB (3 x 2GB) DS - - 9-9-9-24 1.5~1.6V · ·
PATRIOT PGD316G1600ELK(XMP) 32GB (8GBx4) DS - - 9-9-9-24 1.65V · ·
PATRIOT PGS34G1600LLKA 4GB (2 x 2GB) DS - - 7-7-7-20 1.7V · ·
SanMax SMD-4G68HP-16KZ 4GB DS HYNIX H5TQ2G83BFR PBC - - · ·
Silicon Power SP002GBLTU160V02(XMP) 2GB SS S-POWER 20YT5NG-1201 - - · ·
Silicon Power SP004GBLTU160V02(XMP) 4GB DS S-POWER 20YT5NG-1201 - - · ·
x4 )
DS - - - 1.65V · ·
Chip NO. Timing Voltage DIMM socket
Brand
1.5V
1.35V
support (optional)
1DIMM 2DIMMs
· ·
·
1-18
(continued on the next page)
Chapter 1: Product introduction
DDR3-1333 MHz capability
1.35V(low
voltage)
1.35V(low
voltage)
XMP
1.35V
1.3V(low
voltage)
XMP
1.25V
DIMM socket
support (optional)
1DIMM 2DIMMs
• •
• •
• •
• •
• •
Vendors Part No. Size
A-DATA AM2U139C2P1 2GB SS ADATA 3CCD-1509A EL1127T - - • •
A-DATA AM2U139C4P2 4GB DS ADATA 3CCD-1509A EL1127T - - • •
A-DATA SU3U1333W8G9-B 8GB DS ELPIDA J4208BASE-DJ-F - - • •
Apacer AU02GFA33C9NBGC 2GB DS Apacer AM5D5808APQSBG - - • •
CORSAIR TR3X3G1333C9 G 3GB(3 x 1GB) SS - - 9-9-9-24 1.50V • •
CORSAIR TW3X4G1333C9D G 4GB(2 x 2GB) DS - - 9-9-9-24 1.50V • •
CORSAIR CMX4GX3M1A1333C9 4GB DS - - 9-9-9-24 1.50V • •
Crucial BL25664BN1337.16FF (XMP) 6GB(3 x 2GB) DS - - 7-7-7-24 1.65V • •
ELPIDA EBJ10UE8EDF0-DJ-F 1GB SS ELPIDA J1108EDSE-DJ-F -
ELPIDA EBJ21UE8EDF0-DJ-F 2GB DS ELPIDA J1108EDSE-DJ-F -
G.SKILL F3-10600CL8D-2GBHK(XMP) 1GB SS G.SKILL - - - • •
G.SKILL F3-10600CL9D-2GBNQ 2GB(2 x 1GB) SS - - 9-9-9-24 1.5V • •
G.SKILL F3-10666CL8D-4GBECO(XMP) 4GB(2 x 2GB) DS - - 8-8-8-8-24
GEIL GG34GB1333C9DC 4GB(2 x 2GB) DS GEIL GL1L128M88BA12N 9-9-9-24
GEIL GVP34GB1333C7DC 4GB(2 x 2GB) DS - - 7-7-7-24 1.5V • •
KINGMAX FLFD45F-B8KL9 NAES 1GB SS KINGMAX KKB8FNWBFGNX-27A - - • •
KINGMAX FLFF65F-C8KL9 NEES 4GB DS KINGMAX KFC8FNLXF-DXX-15A - - • •
KINGMAX FLFF65F-C8KM9 NEES 4GB DS KINGMAX KFC8FNMXF-BXX-15A - - • •
KINGSTON KVR1333D3N9/2G 2GB SS Hynix H5TQ2G83AFRH9C 9 - • •
KINGSTON KHX1333C9D3UK2/4GX(XMP) 4GB(2 x 2GB) DS - - 9
KINGSTON KVR1333D3N9/4G 4GB DS ELPIDA J2108BCSE-DJ-F - 1.5V • •
KINGSTON KVR1333D3N9/4G 4GB DS KTC D2568JENCNGD9U - 1.5V • •
Micron MT8JTF25664AZ-1G4M1 2GB SS MICRON IJM22 D9PFJ - - • •
Micron MT16JTF51264AZ-1G4D1 4GB DS Micron OLD22D9LGK - - • •
NANYA NT4GC64B8HG0NF-CG 4GB DS NANYA NT5CB256M8GN-CG - - • •
Super Talent W1333UA1GH 1GB SS Hynix H5TQ1G83TFR 9 - • •
Super Talent W1333UB4GS 4GB DS SAMSUNG K4B2G0846C - - • •
Super Talent W1333UX6GM 6GB(3x 2GB) DS Micron 0BF27D9KPT 9-9-9-24 1.5V • •
Transcend JM1333KLN-2G 2GB SS Micron 0YD77D9LGK - - • •
Transcend JM1333KLU-2G 2GB DS Transcend TK243PDF3 - - • •
SS/DSChip
Brand
Chip NO. Timing Voltage
DDR3-1066 MHz capability
Vendors Part No. Size SS/DS
Crucial CT12864BA1067.8FF 1GB SS Micron 9GF22D9KPT 7 - • •
ELPIDA EBJ10UE8EDF0-AE-F 1GB SS ELPIDA J1108EDSE-DJ-F - 1.35V(low voltage) • •
ELPIDA EBJ21UE8EDF0-AE-F 2GB DS ELPIDA J1108EDSE-DJ-F - 1.35V(low voltage) • •
KINGSTON KVR1066D3N7/2G 2GB DS ELPIDA J1108BDSE-DJ-F 7 1.5V • •
KINGSTON KVR1066D3N7/4G 4GB DS Hynix H5TQ2G83AFR 7 1.5V • •
Micron MT16JTF25664AZ-1G1F1 2GB DS Micron 9HF22D9KPT 7 - • •
Chip
Chip NO. Timing Voltage
Brand
DIMM socket
support (optional)
1DIMM 2DIMMs
SS: Single-sided / DS: Double-sided
DIMM support:
• 1 DIMM: Supports one module inserted into either slot as single-channel memory
conguration.
• 2 DIMMs: Supports one pair of modules inserted into both the blue slots as one pair of
Visit the ASUS website at www.asus.com for the latest QVL.
ASUS P8B75-M LX PLUS
dual-channel memory conguration.
1-19
1.5.3 Installing a DIMM
Unplug the power supply before adding or removing DIMMs or other system components.
Failure to do so can cause severe damage to both the motherboard and the components.
1. Press the retaining clips outward
to unlock a DIMM socket.
2. Align a DIMM on the socket
such that the notch on the DIMM
matches the DIMM slot key on the
socket.
1
Unlocked retaining clip
A DIMM is keyed with a notch so that it ts in only one direction. DO NOT force a DIMM into
a socket in the wrong direction to avoid damaging the DIMM.
3. Firmly insert the DIMM into the socket
until the retaining clips snap back
in place and the DIMM is properly
seated.
Locked Retaining Clip
1.5.4 Removing a DIMM
To remove a DIMM:
1. Simultaneously press the retaining clips
outward to unlock the DIMM.
2
DIMM notch
1
DIMM slot key
3
Support the DIMM lightly with
your ngers when pressing the
retaining clips. The DIMM might
get damaged when it ips out
with extra force.
2. Remove the DIMM from the socket.
1-20
2
1
1
DIMM notch
Chapter 1: Product introduction
1.6 Expansion slots
In the future, you may need to install expansion cards. The following sub-sections describe
the slots and the expansion cards that they support.
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
1.6.1 Installing an expansion card
To install an expansion card:
1. Before installing the expansion card, read the documentation that came with it and
make the necessary hardware settings for the card.
2. Remove the system unit cover (if your motherboard is already installed in a chassis).
3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.
4. Align the card connector with the slot and press rmly until the card is completely
seated on the slot.
5. Secure the card to the chassis with the screw you removed earlier.
6. Replace the system cover.
1.6.2 Conguring an expansion card
After installing the expansion card, congure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2. Assign an IRQ to the card.
3. Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
1.6.3 PCI slot
The PCI slots support LAN cards, SCSI cards, USB cards, and other cards that comply with
PCI specications.
1.6.4 PCI Express 2.0 x1 slots
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
ASUS P8B75-M LX PLUS
1-21
1.6.5 PCI Express 3.0/2.0 x16 slots
P8B75-M LX PLUS
P8B75-M LX PLUS Clear RTC RAM
1 2 2 3
Normal
(Default)
Clear RTC
CLRTC
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
IRQ assignments for this motherboard
A B C D E F G H
Intel PCH SATA controller #0
Intel PCH SATA controller #1
Realtek 8111F controller
– – – shared – – – –
– – – shared – – – –
shared – – – – – – –
1.7 Jumpers
Clear RTC RAM (3-pin CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, time, and system setup parameters by erasing
the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in
CMOS, which include system setup information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5-10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <
enter data.
1-22
Del> key during the boot process and enter BIOS setup to re-
Chapter 1: Product introduction
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
9 8
3 4
5
2
67
1
10
position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper
again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the
battery.
• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature.
Shut down and reboot the system, then the BIOS automatically resets parameter
settings to default values.
1.8 Connectors
1.8.1 Rear panel connectors
1. PS/2 Mouse port (green).
2. LAN (RJ-45) port.
through a network hub.
LAN port LED indications
Activity/Link LED Speed LED
Status Description Status Description
OFF No link OFF 10Mbps connection
ORANGE Linked ORANGE 100Mbps connection
BLINKING Data activity GREEN 1Gbps connection
ASUS P8B75-M LX PLUS
This port is for a PS/2 mouse.
This port allows Gigabit connection to a Local Area Network (LAN)
LED
LAN port
Speed
LED
Activity Link
1-23
3. Line In port (light blue). This port connects to the tape, CD, DVD player, or other
audio sources.
4. Line Out port (lime).
This port connects to a headphone or a speaker. In the 4, 6 and
8-channel congurations, the function of this port becomes Front Speaker Out.
5. Microphone port (pink)
Refer to the audio conguration table below for the function of the audio ports in 2, 4, 6, or
8-channel conguration.
. This port connects to a microphone.
Audio 2, 4, 6, or 8-channel conguration
Port
Light Blue (Rear
panel)
Lime (Rear panel) Line Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center
Lime (Front
panel)
Headset
2-channel
Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out
- - - Side Speaker Out
Use a chassis with an HD audio module in the front panel to support an 8-channel audio
output.
4-channel 6-channel 8-channel
6. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB
2.0/1.1 devices.
7. USB 3.0 ports 1 and 2
. These two 9-pin Universal Serial Bus (USB) ports are for USB
3.0 devices.
• DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows
operating system.
• Due to USB 3.0 controller limitations, USB 3.0 devices can only be used under a
Windows® OS environment and after USB 3.0 driver installation.
• USB 3.0 devices can only be used for data storage.
• We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster
and better performance from your USB 3.0 devices.
®
1-24
Chapter 1: Product introduction
8. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other
P8B75-M LX PLUS
P8B75-M LX PLUS Front panel audio connector
AAFP
PIN 1
AGNDNCSENSE1_RETUR
SENSE2_RETUR
PORT1 L
PORT1 R
PORT2 R
SENSE_SEND
PORT2 L
HD-audio-compliant
pin definition
PIN 1
AGNDNCNC
NC
MIC2
MICPWR
Line out_R
NC
Line out_L
Legacy AC’97
compliant definition
VGA-compatible devices.
9. DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to
output RGB Signal to CRT and isn’t compatible with DVI-I.
10. USB 2.0 ports 3 and 4.
These two 4-pin Universal Serial Bus (USB) ports are for USB
2.0/1.1 devices.
1.8.2 Internal connectors
1. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel
audio I/O module cable to this connector.
• We recommend that you connect a high-denition front panel audio module to this
connector to avail of the motherboard’s high-denition audio capability.
• If you want to connect a high-denition front panel audio module to this connector, set the
Front Panel Type item in the BIOS setup to [HD]. If you want to connect an AC’97 front
panel audio module to this connector, set the item to [AC97]. By default, this connector is
set to [HD]. See section 2.5.7 Onboard Devices Conguration for details.
ASUS P8B75-M LX PLUS
1-25
2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
P8B75-M LX PLUS
P8B75-M LX PLUS ATX power connectors
EATXPWR
PIN 1
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
ATX12V
+12V DC
+12V DC
GND
GND
These connectors are for ATX power supply plugs. The power supply plugs are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
•
We recommend that you use an ATX 12V Specication 2.0-compliant power supply
unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin
power plugs.
•
DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will
not boot up.
• We recommend that you use a PSU with higher power output when conguring a
system with more power-consuming devices or when you intend to install additional
devices. The system may become unstable or may not boot up if the power is
inadequate.
•
If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
1-26
Chapter 1: Product introduction
3. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN)
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
P8B75-M LX PLUS
P8B75-M LX PLUS CPU fan connector
Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside
the system may damage the motherboard components. These are not jumpers! Do not
place jumper caps on the fan connectors! The CPU_FAN connector supports a CPU fan of
maximum 2A (24 W) fan power.
Only the 4-pin CPU fan supports the ASUS Fan Xpert feature.
ASUS P8B75-M LX PLUS
1-27
4. System panel connector (20-8 pin PANEL)
P8B75-M LX PLUS
P8B75-M LX PLUS System panel connector
PIN 1
PWR BTN
PLED+
PLED-
PWR
GND
HD_LED+
HD_LED-
Ground
Reset
F_PANEL
PWR LED
+HD_LED RESET
This connector supports several chassis-mounted functions.
• System power LED (2-pin PLED)
This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.
• Hard disk drive activity LED (2-pin IDE_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The IDE LED lights up or ashes when data is read from or written to
the HDD.
• ATX power button/soft-off button (2-pin PWRSW)
This connector is for the system power button.
• Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
1-28
Chapter 1: Product introduction
5. Speaker connector (4-pin SPEAKER)
GND
RSATA_RXP1
RSATA_RXN1
GND
RSATA_TXN1
RSATA_TXP1
GND
GND
RSATA_TXP2
RSATA_TXN2
GND
RSATA_RXN2
RSATA_RXP2
GND
SATA3G_1
SATA3G_2
GND
RSATA_RXP3
RSATA_RXN3
GND
RSATA_TXN3
RSATA_TXP3
GND
GND
RSATA_TXP4
RSATA_TXN4
GND
RSATA_RXN4
RSATA_RXP4
GND
SATA3G_3
SATA3G_4
GND
RSATA_RXP5
RSATA_RXN5
GND
RSATA_TXN5
RSATA_TXP5
GND
SATA3G_5
P8B75-M LX PLUS
P8B75-M LX PLUS Intel® SATA 3.0Gb/s connectors
P8B75-M LX PLUS
P8B75-M LX PLUS Speaker Out Connector
+5V
GND
GND
Speaker Out
SPEAKER
PIN 1
The 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you hear system beeps and warnings.
6. Intel® B75 Serial ATA 3.0Gb/s connectors (7-pin SATA3G_1~5 [blue])
These connectors connect to Serial ATA 3.0 Gb/s hard disk drives and optical drives via
Serial ATA 3.0 Gb/s signal cables.
• You must install Windows. XP Service Pack 3 or later version before using Serial ATA
hard disk drives.
• When using hot-plug and NCQ, set the SATA Mode Selection item in the BIOS to [AHCI].
See section 2.5.3 SATA Conguration for details.
ASUS P8B75-M LX PLUS
1-29
7. Intel® B75 Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1 [gray])
P8B75-M LX PLUS
P8B75-M LX PLUS USB3.0 Front panel connector
USB3_34
ID
IntA_P1_D+
IntA_P1_D-
GND
IntA_P1_SSTX+
GND
IntA_P1_SSTX-
IntA_P1_SSRX+
IntA_P1_SSRX-
Vbus
IntA_P2_D+
IntA_P2_D-
GND
IntA_P2_SSTX+
IntA_P2_SSTX-
GND
IntA_P2_SSRX+
IntA_P2_SSRX-
Vbus
PIN 1
P8B75-M LX PLUS
P8B75-M LX PLUS Intel® SATA 6.0Gb/s connectors
GND
RSATA_TXP1
RSATA_TXN1
GND
RSATA_RXN1
RSATA_RXP1
GND
SATA6G_1
These connectors connect to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0
Gb/s signal cables.
• You must install Windows. XP Service Pack 3 or later version before using Serial ATA
hard disk drives.
• When using hot-plug and NCQ, set the SATA Mode Selection item in the BIOS to [AHCI].
See section 2.5.3 SATA Conguration for details.
8. USB 3.0 connector (20-1 pin USB3_34)
This connector is for additional USB 3.0 ports. Connect the USB 3.0 bracket cable to
this connector, then install the USB 3.0 bracket to the rear side of the chassis. If your
chassis supports front panel ports, you can use the ASUS USB 3.0 header to install
additional front panel USB 3.0 ports.
The USB 3.0 module is purchased separately.
1-30
Chapter 1: Product introduction
9. USB 2.0 connectors (10-1 pin USB56, USB78)
P8B75-M LX PLUS
P8B75-M LX PLUS DRCT connector
P8B75-M LX PLUS
P8B75-M LX PLUS USB2.0 connectors
USB+5V
USB_P8-
USB_P8+
GND
NC
USB+5V
USB_P7-
USB_P7+
GND
USB78
PIN 1 PIN 1
USB+5V
USB_P6-
USB_P6+
GND
NC
USB+5V
USB_P5-
USB_P5+
GND
USB56
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specications and supports up to
480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
10. Direct Connector (2-pin DRCT)
This connector is for the chassis-mounted button that supports the DirectKey function.
Connect the button cable that supports DirectKey from the chassis to this connector on
the motherboard.
Check that your chassis comes with the button cable that supports the DirectKey feature.
Refer to the technical documentaion that came with the chassis for details.
ASUS P8B75-M LX PLUS
1-31
1.9 Onboard LEDs
SB_PWR
ON
Standby Power Powered Off
OFF
P8B75-M LX PLUS
P8B75-M LX PLUS Onboard LED
1. Standby Power LED
The motherboard comes with a standby power LED that lights up to indicate that the
system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should
shut down the system and unplug the power cable before removing or plugging in any
motherboard component. The illustration below shows the location of the onboard LED.
1-32
Chapter 1: Product introduction
1.10 Software support
1.10.1 Installing an operating system
This motherboard supports Windows® XP and Windows 7 Operating Systems (OS). Always
install the latest OS version and corresponding updates to maximize the features of your
hardware.
• Motherboard settings and hardware options vary. Refer to your OS documentation for
detailed information.
• Ensure that you install Windows
Vista Service Pack 1 or later versions before installing the drivers for better
compatibility and system stability.
1.10.2 Support DVD information
The Support DVD that comes with the motherboard package contains the drivers, software
applications, and utilities that you can install to avail all motherboard features.
The contents of the Support DVD are subject to change at any time without notice. Visit the
ASUS website at www.asus.com for updates.
To run the Support DVD
Place the Support DVD into the optical drive. If Autorun is enabled in your computer, the
DVD automatically displays the Specials screen which lists the unique features of your ASUS
motherboard. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to display their
respective menus.
The following screen is for reference only.
®
XP Service Pack 3 or later versions / Windows®
Click an item to install
ASUS P8B75-M LX PLUS
Click an icon to
display Support
DVD/motherboard
information
1-33
If Autorun is NOT enabled in your computer, browse the contents of the Support DVD to
locate the le ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run
the DVD.
1.10.3 Intel® SBA support
Intel® SBA (Small Business Advantage) is a combination of hardware and software that
provides unique security and productivity capabilities designed for small businesses.
Intel® SBA requires MEI driver (AMT host software kit) installed.
Platform requirements:
• Windows® 7 (32/64bit)
• Panther Point PCH with Core™ Ivy Bridge CPU or Sandy Bridge CPU (Chief River/
Maho Bay platforms) with 5MB vPro ME 8.0 rmware load
CPU and chipsets requirements:
* Intel® Core™ i3 with B75
* Intel® Core™ i5 with B75
* Intel® Core™ i7 with B75
* Intel® Core™ i5 vPro with one of these chipsets: B75, Q77
* Intel® Core™ i7 vPro with one of these chipsets: B75, Q77
®
• The Intel
Service and the Intel® Management Engine Interface must be installed and running.)
• Local Administrator rights on the target machine
Management Engine software kit must be installed (The Local Manageability
1-34
The Intel® SBA does not support the 800 x 600 screen resolution.
Visit the ASUS website at www.asus.com for the latest CPU QVL (Qualied Vendors List).
Chapter 1: Product introduction
BIOS information
2
2.1 Managing and updating your BIOS
Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to
restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update
utility.
2.1.1 ASUS Update utility
The ASUS Update is a utility that allows you to manage, save, and update the motherboard
BIOS in Windows® environment.
• ASUS Update requires an Internet connection either through a network or an Internet
Service Provider (ISP).
• This utility is available in the support DVD that comes with the motherboard package.
Installing ASUS Update
To install ASUS Update:
1. Place the support DVD in the optical drive. The Drivers menu appears.
2. Click the
3. Follow the onscreen instructions to complete the installation.
Utilities tab, then click AI Suite II.
Quit all Windows® applications before you update the BIOS using this utility.
Updating the BIOS
To update the BIOS:
®
1. From the Windows
II X.XX.XX to launch the AI Suite II utility. The AI Suite II Quick Bar appears.
2. Click
ASUS P8B75-M LX PLUS
Update button from the Quick Bar, and then click ASUS Update from the popup
menu. The ASUS Update main screen appears. From the list, select either of the
following methods:
desktop, click Start > Programs > ASUS > AI Suite II > AI Suite
2-1
Updating from the Internet
a. Select
b. Select the ASUS FTP site nearest you to avoid network trafc, then click
Update BIOS from the Internet, then click Next.
Next.
c. From the FTP site, select the BIOS version that you wish to download then click
Next.
The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to avail all its features.
Updating from a BIOS file
a. Select
b. Locate the BIOS le from the
Update BIOS from le, then click Next.
Open window, then click Open.
3. Follow the onscreen instructions to complete the updating process.
2.1.2 ASUS EZ Flash 2
The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based
utility.
Before you start using this utility, download the latest BIOS le from the ASUS website at
www.asus.com.
To update the BIOS using EZ Flash 2:
1. Insert the USB ash disk that contains the latest BIOS le to the USB port.
2. Enter the
ASUS EZ Flash Utility and press <Enter> to enable it.
3. Press <Tab> to switch to the
4. Press the Up/Down arrow keys to nd the USB ash disk that contains the latest BIOS,
and then press <Enter>.
5. Press <Tab> to switch to the
6. Press the Up/Down arrow keys to nd the BIOS le, and then press <Enter> to perform
the BIOS update process. Reboot the system when the update process is done.
Advanced Mode of the BIOS setup program. Go to the Tool menu to select
Drive eld.
Folder Info eld.
2-2
• This function supports USB ash disks formatted using FAT32/16 on a single partition
only.
• DO NOT shut down or reset the system while updating the BIOS to prevent system
boot failure!
Chapter 2: Getting started
2.1.3 ASUS CrashFree BIOS 3 utility
The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le
when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS
le using the motherboard support DVD or a USB ash drive that contains the updated BIOS
le.
• Before using this utility, rename the BIOS le in the removable device into
P8B75-M-LX-PLUS-ASUS-0308.CAP.
• The BIOS le in the support DVD may not be the latest version. Download the latest
BIOS le from the ASUS website at www.asus.com.
Recovering the BIOS
To recover the BIOS:
1. Turn on the system.
2. Insert the support DVD to the optical drive or the USB ash drive that contains the
BIOS le to the USB port.
3. The utility automatically checks the devices for the BIOS le. When found, the utility
reads the BIOS le and enters ASUS EZ Flash 2 utility automatically.
4. The system requires you to enter BIOS Setup to recover BIOS settings. To ensure
system compatibility and stability, we recommend that you press <F5> to load default
BIOS values.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
ASUS P8B75-M LX PLUS
2-3
2.1.4 ASUS BIOS Updater
The ASUS BIOS Updater allows you to update BIOS in a DOS environment. This utility also
allows you to copy the current BIOS le that you can use as a backup when the BIOS fails or
gets corrupted during the updating process.
The succeeding utility screens are for reference only. The actual utility screen displays may
not be same as shown.
Before updating BIOS
1. Prepare the motherboard support DVD and a USB ash drive formatted using
FAT32/16 on a single partition.
Download the latest BIOS le and BIOS Updater from the ASUS website at
2.
http://support.asus.com and save them on the USB ash drive.
NTFS is not supported under DOS environment. Do not save the BIOS le and BIOS
Updater to a hard disk drive or USB ash drive in NTFS format.
3. Turn off the computer and disconnect all SATA hard disk drives (optional).
Booting the system to a DOS environment
1. Insert the USB ash drive with the latest BIOS le and BIOS Updater to the USB port.
2. Boot your computer. When the ASUS Logo appears, press <F8> to show the
Boot Device Select Menu. Insert the support DVD into the optical drive and select the
optical drive as the boot device.
BIOS
3. When the Make Disk menu appears, select the FreeDOS command prompt item by
pressing the item number.
4. At the FreeDOS prompt, type d: and press <Enter> to switch the disk from Drive C
(optical drive) to Drive D (USB ash drive).
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Chapter 2: Getting started
Updating the BIOS le
To update the BIOS le using BIOS Updater:
1. At the FreeDOS prompt, type
2. The BIOS Updater screen appears as below.
P8B75-M LX PLUS
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P8B75-M-LX-PLUS-ASUS-0306.CAP 8194 2012-05-1
15:25:48
3. Press <Tab> to switch between screen elds and use the <Up/Down/Home/End> keys
to select the BIOS le and press <Enter>. BIOS Updater checks the selected BIOS le
and prompts you to conrm BIOS update.
bupdater /pc /g and press <Enter>.
4. Select Yes and press <Enter>. When BIOS update is done, press <ESC> to exit BIOS
Updater. Restart your computer.
DO NOT shut down or reset the system while updating the BIOS to prevent system boot
failure!
• For BIOS Updater version 1.04 or later, the utility automatically exits to the DOS
prompt after updating BIOS.
• Ensure to load the BIOS default settings to ensure system compatibility and stability.
Select the Load Optimized Defaults item under the Exit menu. Refer to section 2.9
Exit menu for details.
• Ensure to connect all SATA hard disk drives after updating the BIOS le if you have
disconnected them.
ASUS P8B75-M LX PLUS
2-5
2.2 BIOS setup program
Use the BIOS Setup program to update the BIOS or congure its parameters. The BIOS
screens include navigation keys and brief online help to guide you in using the BIOS Setup
program.
Entering BIOS Setup at startup
To enter BIOS Setup at startup:
Press <Delete> during the Power-On Self Test (POST). If you do not press <Delete>,
•
POST continues with its routines.
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
Press <Ctrl>+<Alt>+<Del> simultaneously.
•
Press the reset button on the system chassis.
•
Press the power button to turn the system off then back on. Do this option only if you
•
failed to enter BIOS Setup using the rst two options.
Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from a
running operating system can cause damage to your data or system. We recommend you
always shut down the system properly from the operating system.
• The BIOS setup screens shown in this section are for reference purposes only, and
may not exactly match what you see on your screen.
• Visit the ASUS website at
motherboard.
• Ensure that a USB mouse is connected to your motherboard if you want to use the
mouse to control the BIOS setup program.
• If the system becomes unstable after changing any BIOS setting, load the default
settings to ensure system compatibility and stability. Select the Load Optimized
Defaults item under the Exit menu. See section 2.9 Exit Menu for details.
• If the system fails to boot after changing any BIOS setting, try to clear the CMOS and
reset the motherboard to the default value. See section 1.9 Jumpers for information
on how to erase the RTC RAM.
www.asus.com to download the latest BIOS le for this
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Chapter 2: Getting started
BIOS menu screen
The BIOS setup program can be used under two modes: EZ Mode and Advanced Mode.
You can change modes from the Exit menu or from the Exit/Advanced Mode button in the EZ
Mode/Advanced Mode screen.
EZ Mode
By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ
Mode provides you an overview of the basic system information, and allows you to select
the display language, system performance mode and boot device priority. To access the
Advanced Mode, click Exit/Advanced Mode, then select Advanced Mode.
The default screen for entering the BIOS setup program can be changed. Refer to the
Setup Mode item in section 2.7 Boot menu for details.
Displays the CPU/motherboard
temperature, CPU voltage output,
and CPU/chassis fan speed
Selects the boot
device priority
Displays the system
properties of the
selected mode on the
right hand side
• The boot device options vary depending on the devices you installed to the system.
• The
Boot Menu(F8) button is available only when the boot device is installed to the
system.
Selects the display language
of the BIOS setup program
Silent mode Standard
mode
Selects the boot
device priority
Exits the BIOS setup program without
saving the changes, saves the changes
and resets the system, or enters the
Advanced Mode
Loads
optimized
default
Turbo mode
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Advanced Mode
The Advanced Mode provides advanced options for experienced end-users to congure the
BIOS settings. The gure below shows an example of the Advanced Mode. Refer to the
following sections for the detailed congurations.
To access the EZ Mode, click Exit, then select ASUS EZ Mode.
Conguration eldsMenu itemsBack button
Submenu item
General helpMenu bar
Navigation keys
Menu bar
The menu bar on top of the screen has the following main items:
Main For changing the basic system conguration
Ai Tweaker For changing the overclocking settings
Advanced For changing the advanced system settings
Monitor
Boot For changing the system boot conguration
Tool For conguring options for special functions
Exit For selecting the exit options and loading default settings
For displaying the system temperature, power status, and changing the
fan settings
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Chapter 2: Getting started
Menu items
The highlighted item on the menu bar displays the specic items for that menu. For example,
selecting Main shows the Main menu items.
The other items (Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the menu bar have
their respective menu items.
Back button
This button appears when entering a submenu. Press <Esc> or use the USB mouse to click
this button to return to the previous menu screen.
Submenu items
A greater than sign (>) before each item on any menu screen means that the item has a
submenu. To display the submenu, select the item and press <Enter>.
Pop-up window
Select a menu item and press <Enter> to display a pop-up window with the conguration
options for that item.
Scroll bar
A scroll bar appears on the right side of a menu screen when there are items that do not t on
the screen. Press the Up/Down arrow keys or <Page Up> / <Page Down> keys to display the
other items on the screen.
Navigation keys
At the bottom right corner of the menu screen are the navigation keys for the BIOS setup
program. Use the navigation keys to select items in the menu and change the settings.
General help
At the top right corner of the menu screen is a brief description of the selected item.
Conguration elds
These elds show the values for the menu items. If an item is user-congurable, you can
change the value of the eld opposite the item. You cannot select an item that is not
user-congurable.
A congurable eld is highlighted when selected. To change the value of a eld, select it and
press <Enter> to display a list of options.
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2.3 Main menu
The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup
program. The Main menu provides you an overview of the basic system information, and
allows you to set the system date, time, language, and security settings.
2.3.1 System Language [English]
Allows you to choose the BIOS language version from the options. Conguration options:
[English] [Español] [Русский]
2.3.2 System Date [Day xx/xx/xxxx]
Allows you to set the system date.
2.3.3 System Time [xx:xx:xx]
Allows you to set the system time.
2.3.4 Security
The Security menu items allow you to change the system security settings.
• If you have forgotten your BIOS password, erase the CMOS Real Time Clock (RTC)
RAM to clear the BIOS password. See section 1.9 Jumpers for information on how to
erase the RTC RAM.
• The
Administrator or User Password items on top of the screen show the default
Not Installed. After you set a password, these items show Installed.
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Chapter 2: Getting started
Administrator Password
If you have set an administrator password, we recommend that you enter the administrator
password for accessing the system. Otherwise, you might be able to see or change only
selected elds in the BIOS setup program.
To set an administrator password:
1. Select the
2. From the
3. Conrm the password when prompted.
To change an administrator password:
1. Select the
2. From the
<Enter>.
3. From the
4. Conrm the password when prompted.
To clear the administrator password, follow the same steps as in changing an administrator
password, but press <Enter> when prompted to create/conrm the password. After you clear
the password, the Administrator Password item on top of the screen shows Not Installed.
Administrator Password item and press <Enter>.
Create New Password box, key in a password, then press <Enter>.
Administrator Password item and press <Enter>.
Enter Current Password box, key in the current password, then press
Create New Password box, key in a new password, then press <Enter>.
User Password
If you have set a user password, you must enter the user password for accessing the system.
The User Password item on top of the screen shows the default Not Installed. After you set
a password, this item shows Installed.
To set a user password:
1. Select the
2. From the
3. Conrm the password when prompted.
To change a user password:
1. Select the
2. From the
<Enter>.
3. From the
4. Conrm the password when prompted.
User Password item and press <Enter>.
Create New Password box, key in a password, then press <Enter>.
User Password item and press <Enter>.
Enter Current Password box, key in the current password, then press
Create New Password box, key in a new password, then press <Enter>.
To clear the user password, follow the same steps as in changing a user password, but press
<Enter> when prompted to create/conrm the password. After you clear the password, the
User Password item on top of the screen shows Not Installed.
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2.4 Ai Tweaker menu
The Ai Tweaker menu items allow you to congure overclocking-related items.
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld
values can cause the system to malfunction.
The conguration options for this section vary depending on the CPU and DIMM model you
installed on the motherboard.
Target DRAM Speed : xxxxMHz
Displays the current DRAM speed.
2.4.1 ASUS MultiCore Enhancement [Enabled]
[Enabled] Default set to [Enabled] for maximum performance under XMP/Manual/
[Disabled] Allows you to set to default core ratio settings.
User-dened memory frequency mode.
2.4.2 Memory Frequency [Auto]
Allows you to set the memory operating frequency. Conguration options: [DDR3800MHz][DDR3-1066MHz][DDR3-1333MHz][DDR3-1600MHz][DDR3-1866MHz][DDR2133MHz][DDR-2400MHz]
Selecting a very high memory frequency may cause the system to become unstable! If this
happens, revert to the default setting.
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Chapter 2: Getting started
2.4.3 GPU Boost [OK]
[OK] Select [OK] to automatically optimize the iGPU frequency.
[Cancel] Select [Cancel] to use a xed iGPU frequency.
2.4.4 DRAM Timing Control
The subitems in this menu allow you to set the DRAM timing control features. Use the <+>
and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard
and press the <Enter> key.
Changing the values in this menu may cause the system to become unstable! If this
happens, revert to the default settings.
Primary Timings
DRAM CAS# Latency [Auto]
Conguration options: [Auto] [3 DRAM Clock] – [15 DRAM Clock]
DRAM RAS# to CAS# Delay [Auto]
Conguration options: [Auto] [4 DRAM Clock] – [15 DRAM Clock]
DRAM RAS# PRE Time [Auto]
Conguration options: [Auto] [4 DRAM Clock] – [15 DRAM Clock]
DRAM RAS# ACT Time [Auto]
Conguration options: [Auto] [4 DRAM Clock] – [40 DRAM Clock]
DRAM COMMAND Mode [Auto]
Conguration options: [Auto] [1 DRAM Clock] [2 DRAM Clock] [3 DRAM Clock]
Secondary Timings
DRAM RAS# to RAS# Delay [Auto]
Conguration options: [Auto] [4 DRAM Clock] – [7 DRAM Clock]
DRAM REF Cycle Time [Auto]
Conguration options: [Auto] [48 DRAM Clock] – [511 DRAM Clock]
DRAM Refresh Interval [Auto]
Conguration options: [Auto] [48 DRAM Clock] – [511 DRAM Clock]
DRAM WRITE Recovery Time [Auto]
Conguration options: [Auto] [5 DRAM Clock] – [31 DRAM Clock]
ASUS P8B75-M LX PLUS
2-13
DRAM READ to PRE Time [Auto]
Conguration options: [Auto] [4 DRAM Clock] – [15 DRAM Clock]
DRAM FOUR ACT WIN Time [Auto]
Conguration options: [Auto] [16 DRAM Clock] – [63 DRAM Clock]
DRAM WRITE to READ Delay [Auto]
Conguration options: [Auto] [4 DRAM Clock] – [15 DRAM Clock]
DRAM CKE Minimum pulse width [Auto]
Conguration options: [Auto] [4 DRAM Clock] – [15 DRAM Clock]
DRAM CAS# Write to Latency [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]
DRAM RTL (CHA) [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]
DRAM RTL (CHB) [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]
DRAM I0-L (CHA) [Auto]
Conguration options: [Auto] [Delay 1 Clock] - [Delay 15 Clock]
DRAM IO-L (CHB) [Auto]
Conguration options: [Auto] [Delay 1 Clock] - [Delay 15 Clock]
Third Timings
tWRDR (DD) [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [7 DRAM Clock]
tRWDR (DD) [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [15 DRAM Clock]
tRWSR [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [15 DRAM Clock]
tRR (DD) [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [7 DRAM Clock]
tRR (DR) [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [7 DRAM Clock]
tRRSR [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [15 DRAM Clock]
tWW (DD) [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [7 DRAM Clock]
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Chapter 2: Getting started
tWW (DR) [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [7 DRAM Clock]
tWWSR [Auto]
Conguration options: [Auto] [0 DRAM Clock] – [15 DRAM Clock]
MISC
MRC Fast Boot
Allows you to enable or disable the MRC fast boot.
[Enabled] Enables the MRC fast boot.
[Disable] Disables the MRC fast boot.
DRAM CLK Period [Auto]
Conguration options: [Auto] [1] – [14]
Transmitter Slew (CHA) [Auto]
Conguration options: [Auto] [1] – [7]
Transmitter Slew (CHB) [Auto]
Conguration options: [Auto] [1] – [7]
Receiver Slew (CHA) [Auto]
Conguration options: [Auto] [1] – [7]
Receiver Slew (CHB) [Auto]
Conguration options: [Auto] [1] – [7]
MCH Duty Sense (CHA) [Auto]
Conguration options: [Auto] [1] – [31]
MCH Duty Sense (CHB) [Auto]
Conguration options: [Auto] [1] – [31]
Channel A DIMM Control [Enable Bot...]
Conguration options: [Enable Both DIMMS] [Disable DIMM0] [Disable DIMM1]
[Disable Both DIMMS]
Channel B DIMM Control [Enable Bot...]
Conguration options: [Enable Both DIMMS] [Disable DIMM0] [Disable DIMM1]
[Disable Both DIMMS]
DRAM Read Additional Swizzle [Auto]
Conguration options: [Auto] [Enabled] [Disabled]
DRAM Write Additional Swizzle [Auto]
Conguration options: [Auto] [Enabled] [Disabled]
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2.4.5 CPU Power Management
The subitems in this menu allow you to set the CPU ratio and features.
CPU Ratio [Auto]
Allows you to manually adjust the maximum non-turbo CPU ratio. Use <+> and <->
keys to adjust the value. The valid value ranges vary according to your CPU model.
Enhanced Intel® SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).
[Disabled] Disables this function.
[Enabled] The operating system dynamically adjusts the processor voltage and
Turbo Mode is only available for select CPU models only.
Turbo Mode [Enabled]
Allows you to enable your core processor’s speed to run faster than the marked
frequency in a specic condition. Conguration options: [Disabled] [Enabled]
The following items appear only when you set the Turbo Mode to [Enabled].
Turbo Mode Parameters
core frequency which may result in decreased average consumption
and decreased average heat production.
Long Duration Power Limit [Auto]
Allows you to limit the turbo ratio’s long duration power.
Use the <+> and <-> keys to adjust the value.
Long Duration Maintained [Auto]
Allows you to maintain the turbo ratio’s long duration power.
Use the <+> and <-> keys to adjust the value.
Short Duration Power Limit [Auto]
Allows you to limit the turbo ratio’s long duration power.
Use the <+> and <-> keys to adjust the value.
Primary Plane Current Limit [Auto]
Maximum instantaneous current allowed at any given time for CPU cores
Use <+> and <-> key to adjust the value at 0.125A increment.
Secondary Plane Current Limit [Auto]
Maximum instantaneous current allowed at any given time for Internal
Graphics cores. Use <+> and <-> key to adjust the value at 0.125A
increment.
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Chapter 2: Getting started
2.5 Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Be cautious when changing the settings of the Advanced menu items. Incorrect eld values
can cause the system to malfunction.
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2-17
2.5.1 CPU Conguration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
The items shown in submenu may be different due to the CPU you installed.
Intel® Adaptive Thermal Monitor [Enabled]
[Enabled] Enables the overheated CPU to throttle its clock speed to cool down.
[Disabled] Disables the CPU thermal monitor function.
Hyper-threading [Enabled]
®
The Intel
logical processors to the operating system, allowing the operating system to schedule two
threads or processes simultaneously.
[Enabled] Two threads per activated core are enabled.
[Disabled] Only one thread per activated core is enabled.
Active Processor Cores [All]
Allows you to choose the number of CPU cores to activate in each processor package.
Conguration options: [All] [1] [2] [3]
Limit CPUID Maximum [Disabled]
[Enabled] Allows legacy operating systems to boot even without support for CPUs
[Disabled] Disables this function.
Execute Disable Bit [Enabled]
[Enabled] Enables the No-Execution Page Protection Technology.
[Disabled] Forces the XD feature ag to always return to zero (0).
Intel® Virtualization Technology [Disabled]
[Enabled] Allows a hardware platform to run multiple operating systems separately
[Disabled] Disables this function.
Hardware Prefetcher [Enabled]
[Enabled] Allows a hardware platform to automatically analyze the requirements and
[Disabled] Disables this function.
Adjacent Cache Line Prefetch [Enabled]
[Enabled] Allows a hardware platform to perform adjacent cache line prefetching.
[Disabled] Disables this function.
Hyper-Threading Technology allows a hyper-threading processor to appear as two
with extended CPUID functions.
and simultaneously, enabling one system to virtually function as several
systems.
prefetch data and codes for the CPU.
2-18
Chapter 2: Getting started
CPU Power Management Conguration
This item allows you to manage and congure the CPU’s power.
CPU Ratio [Auto]
Allows you to set the ratio between the CPU Core Clock and the BCLK Frequency. Use
<+> and <-> keys to adjust the ratio. The valid value ranges vary according to your
CPU model.
Enhanced Intel® SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).
[Disabled] The CPU runs at its default speed.
[Enabled} The operating system controls the CPU speed.
Turbo Mode [Enabled]
Allows you to set the processor cores to run faster than the marked frequency in a
specic condition. Conguration options: [Enabled] [Disabled]
Turbo Mode is only available for select CPU models only.
CPU C1E [Auto]
[Enabled] Enables the C1E support function. This function must be enabled to
[Disabled] Disables the function.
CPU C3 Report [Auto]
Allows you to disable or enable the CPU C3 report to OS.
CPU C6 Report [Auto]
Allows you to disable or enable the CPU C6(ACPI C3) report to OS.
Package C State Support [Auto]
Allows you to disable or enable the Package C State support.
enable or disable the Intel® Turbo Mode Technology.
2.5.2 PCH Conguration
High Precision Timer [Enabled]
Allows you to enable or disable the High Precision Event Timer.
Conguration options: [Enabled] [Disabled]
Intel® Rapid Start Technology [Disabled]
Allows you to enable or disable Intel® Rapid Start Technology.
Conguration options: [Enabled] [Disabled]
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2-19
Intel® Rapid Start Technology [Disabled]
Allow you to enable or disable Intel® Rapid Start Technology.
Conguration options: [Enabled] [Disabled]
The following items appear only when you set the Intel® Rapid Start Technology to
[Enabled].
Entry on S3 RTC Wake [Enabled]
The system automatically wakes up and set to Rapid Start Technology S4 mode.
Conguration options: [Enabled] [Disabled
Entry After [Immediately]
Allows you to set the wake-up time.
Conguration options: [Immediately] [1 minute] [2 minutes] [5 minutes] [10 minutes]
[15 minutes] [30 minutes] [1 hour] [2 hours]
Active Page Threshold Support [Enabled]
The system automatically set itself to sleep when the partition size is not enough for
Rapid Start Technology to work. Conguration options: [Enabled] [Disabled]
Active Memory Threshold [0]
Key in the value for the additional partition size for Rapid Start Technology to work.
Ensure that the caching partition size is larger than the total memory size.
Intel® Smart Connect Technology [Disabled]
ICST Configuration [Disabled]
Allows you to enable or disable the ISCT conguration. Conguration options: [Enabled]
[Disabled]
2.5.3 SATA Conguration
While entering Setup, the BIOS automatically detects the presence of SATA devices. The
SATA Port items show Not Present if no SATA device is installed to the corresponding SATA
port.
SATA Mode Selection [IDE]
Allows you to set the SATA conguration.
[IDE] Set to [IDE] when you want to use the Serial ATA hard disk drives as
[AHCI] Set to [AHCI] when you want the SATA hard disk drives to use the AHCI
2-20
Parallel ATA physical storage devices.
(Advanced Host Controller Interface). The AHCI allows the onboard storage
driver to enable advanced Serial ATA features that increases storage
performance on random workloads by allowing the drive to internally
optimize the order of commands.
Chapter 2: Getting started
S.M.A.R.T. Status Check [Enabled]
S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When
read/write of your hard disk errors occur, this feature allows the hard disk to report warning
messages during the POST. Conguration options: [Enabled] [Disable link]
Hot Plug [Disabled]
These items appear only when you set the SATA Mode Selection item to [AHCI] or [RAID],
and allow you to enable/disable SATA Hot Plug Support.
Conguration options: [Disabled] [Enabled]
2.5.4 System Agent Conguration
Memory Remap Feature [Enabled]
Allows you to enable remapping the memory above 4GB.
[Enabled] Enables the function.
[Disabled] Disables this function.
Graphics Conguration
Allows you to select a primary display from iGPU, and PCIe graphical devices.
Primary Display [Auto]
Allows you to select which of the iGPU/PCIE Graphics device should be the Primary
Display. Conguration options: [Auto] [IGPU] [PCIE] [PCI]
iGPU Memory [Auto]
Allows you to select the amount of system memory allocated to DVMT 5.0 used by the
iGPU. Conguration options: [32M] [64M] [96M] [128M] [160M] [192M] [224M] [256M]
[288M] [320M] [352M] [384M] [416M] [448M] [480M] [512M] [1024M]
Render Standby [Enabled]
Allows you to enable the Intel® Graphics Render Standby support to reduce the iGPU
power use when idle. Conguration options: [Disabled] [Enabled]
iGPU Multi-Monitor [Disabled]
Allows you to enable the iGPU Multi-Monitor. For Lucid Virtu MVP function supports,
set this item to [Enabled] to empower both integrated and discrete graphics. iGPU
shared system memory size is xed in 64MB.
Conguration options: [Disabled] [Enabled]
NB PCIe Conguration
Allows you to congure the NB PCI Express settings.
PCIEx16 Link Speed [Auto]
Allows you to congure the PCIEx16 speed.
Conguration options: [Auto] [Gen1] [Gen2]
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2.5.5 AMT Conguration
The items in this menu allow you to change the Intel® Active Management Technology (AMT)
feature.
Intel® AMT [Enabled]
Allow you to enable or disable the Intel® Active Management Technology (AMT) in the BIOS
extension. Conguration options: [Enabled] [Disabled]
• iAMT H/W is always enabled. This option just controls the BIOS extension execution.
If enabled, this requires additional rmware in the SPI device.
®
• The following two items become congurable only when you set the Intel
[Enabled].
Invoke MEBx [Disabled]
This item become congurable only when the previous item is set to [Enabled] and allows
you to enable or disable this function. Conguration options: [Enabled] [Disabled]
Un-Congure ME [Disabled]
Sets this item to [Disabled] to uncongure AMT/ME without using a password or set it to
[Enabled] to use a password. Conguration options: [Enabled] [Disabled]
WatchDog [Disabled]
When set to [Enabled], the WatchDog Timer will monitor the time taken for each task
performed by a software or hardware. Conguration options: [Enabled] [Disabled]
The following two items become congurable only when you set the WatchDog Timer item
to [Enabled].
AMT item to
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OS Timer [0]
Use the <+> and <-> keys to adjust the value or key in a number directly.
BIOS Timer [0]
Use the <+> and <-> keys to adjust the value or key in a number directly.
Chapter 2: Getting started
2.5.6 USB Conguration
The items in this menu allow you to change the USB-related features.
The USB Devices item shows the auto-detected values. If no USB device is detected, the
item shows None.
Legacy USB Support [Enabled]
[Enabled] Enables the support for USB devices on legacy operating systems (OS).
[Disabled] The USB devices can be used only for the BIOS setup program.
[Auto] Allows the system to detect the presence of USB devices at startup. If
Legacy USB3.0 Support [Enabled]
[Enabled] Enables the support for USB 3.0 devices on legacy operating systems
[Disabled] Disables the function.
Intel® xHCI Mode [Smart Auto]
[Auto] Keeps the last operation of xHCI controller in OS during bootup.
[Smart Auto] Enables the operation of xHCI controller.
[Enabled] Enables the function.
[Disabled] Disables the function.
EHCI Hand-off [Disabled]
[Enabled] Enables the support for operating systems without an EHCI hand-off
feature.
[Disabled] Disables the function.
Mass Storage Devices [Auto]
Allows you to set the type of emulation for your USB storage devices.
Conguration options: [Auto] [Floppy] [Forced FDD] [Hard-disk] [CD-ROM]
detected, the USB controller legacy mode is enabled. If no USB device is
detected, the legacy USB support is disabled.
(OS).
ASUS P8B75-M LX PLUS
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2.5.7 Onboard Devices Conguration
HD Audio Controller [Enabled]
[Enabled] Enables the HD Audio Device.
[Disabled] Disables the HD Audio Device.
The following two items appear only when you set the HD Audio Controller item to
[Enabled].
Front Panel Type [HD]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or high-
denition audio depending on the audio standard that the front panel audio module supports.
[HD] Sets the front panel audio connector (AAFP) mode to high denition audio.
[AC97] Sets the front panel audio connector (AAFP) mode to legacy AC’97
Realtek LAN Controller [Enabled]
[Enabled] Enables the Realtek LAN controller.
[Disabled] Disables the controller.
Realtek PXE OPROM [Disabled]
This item appears only when you set the previous item to [Enabled] and allows you to enable
or disable the PXE OptionRom of the Realtek LAN controller.
Conguration options: [Enabled] [Disabled]
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Chapter 2: Getting started
2.5.8 APM
Restore AC Power Loss [Power Off]
[Power On] The system goes into on state after an AC power loss.
[Power Off] The system goes into off state after an AC power loss.
[Last State] The system goes into either off or on state, whatever the system state was
Power On By PS/2 Keyboard [Disabled]
[Disabled] Disables the Power On by a PS/2 keyboard.
[Space Bar] Sets the Space Bar on the PS/2 keyboard to turn on the system.
[Ctrl-Esc] Sets the Ctrl+Esc key on the PS/2 keyboard to turn on the system.
[Power Key] Sets Power key on the PS/2 keyboard to turn on the system. This feature
Power On By PCIE/PCI [Disabled]
[Disabled] Disables the PCIE/PCI devices to generate a wake-on-LAN feature of the
[Enabled] Enables the PCIE/PCI devices to generate a wake-on-LAN feature of the
Power On By Ring [Disabled]
[Disabled] Disables Ring to generate a wake event.
[Enabled] Enables Ring to generate a wake event.
Power On By RTC [Disabled]
[Disabled] Disables RTC to generate a wake event.
[Enabled] When set to [Enabled], the items RTC Alarm Date (Days) and Hour/
before the AC power loss.
requires an ATX power supply that provides at least 1A on the +5VSB lead.
Intel®/Realtek LAN device.
Intel®/Realtek LAN device.
Minute/Second will become user-congurable with set values.
2.5.9 Network Stack
Network Stack [Disabled]
This item allows user to disable or enable the UEFI network stack. Conguration options:
[Disable Link] [Enabled]
The following two items appear only when you set the previous item to [Enabled].
Ipv4 PXE Support [Enabled]
This item allows user to disable or enable the Ipv4 PXE Boot support. Conguration options:
[Disable Link] [Enable]
Ipv6 PXE Support [Enabled]
This item allows user to disable or enable the Ipv6 PXE Boot support. Conguration options:
[Disable Link] [Enable]
ASUS P8B75-M LX PLUS
2-25
2.6 Monitor menu
The Monitor menu displays the system temperature/power status, and allows you to change
the fan settings.
Scroll down to display the following items:
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]
The onboard hardware monitor automatically detects and displays the CPU and motherboard
temperatures. Select Ignore if you do not wish to display the detected temperatures.
2.6.2 CPU / Chassis / Power Fan Speed [xxxx RPM] or [Ignore] / [N/A]
The onboard hardware monitor automatically detects and displays the CPU / chassis / Power
fan speeds in rotations per minute (RPM). If the fan is not connected to the motherboard, the
eld shows N/A. Select Ignore if you do not wish to display the detected speed.
2-26
Chapter 2: Getting started
2.6.3 CPU Q-Fan Control [Enabled]
[Disabled] Disables the CPU Q-Fan control feature.
[Enabled] Enables the CPU Q-Fan control feature.
CPU Fan Speed Low Limit [200 RPM]
This item appears only when you enable the CPU Q-Fan Control feature and allows you to
disable or set the CPU fan warning speed.
Conguration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]
CPU Fan Prole [Standard]
This item appears only when you enable the CPU Q-Fan Control feature and allows you to
set the appropriate performance level of the CPU fan.
[Standard] Sets to [Standard] to make the CPU fan automatically adjust depending on
[Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.
[Turbo] Sets to [Turbo] to achieve maximum CPU fan speed.
[Manual] Sets to [Manual] to assign detailed fan speed control parameters.
CPU Upper Temperature [70]
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values
range from 20ºC to 90ºC.
CPU Fan Max. Duty Cycle(%) [100]
Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The values
range from 40% to 100%. When the CPU temperature reaches the upper limit, the
CPU fan will operate at the maximum duty cycle.
CPU Lower Temperature [20]
Displays the lower limit of the CPU temperature.
CPU Fan Min. Duty Cycle(%) [40]
Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The values
range from 40% to 100%. When the CPU temperature is under the lower limit, the CPU
fan will operate at the minimum duty cycle.
the CPU temperature.
The following four items appear only when you set CPU Fan Prole to [Manual].
2.6.4 Chassis Q-Fan Control [Enabled]
[Disabled] Disables the Chassis Q-Fan control feature.
[Enabled] Enables the Chassis Q-Fan control feature.
ASUS P8B75-M LX PLUS
2-27
Chassis Fan Speed Low Limit [600 RPM]
This item appears only when you enable the Chassis Q-Fan Control feature and allows you
to disable or set the chassis fan warning speed.
Conguration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]
Chassis Fan Prole [Standard]
This item appears only when you enable the Chassis Q-Fan Control feature and allows you
to set the appropriate performance level of the chassis fan.
[Standard] Sets to [Standard] to make the chassis fan automatically adjust depending
[Silent] Sets to [Silent] to minimize the fan speed for quiet chassis fan operation.
[Turbo] Sets to [Turbo] to achieve maximum chassis fan speed.
[Manual] Sets to [Manual] to assign detailed fan speed control parameters.
Chassis Upper Temperature [70]
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values
range from 20ºC to 90ºC.
Chassis Fan Max. Duty Cycle(%) [100]
Use the <+> and <-> keys to adjust the maximum chassis fan duty cycle. The values
range from 40% to 100%. When the chassis temperature reaches the upper limit, the
chassis fan will operate at the maximum duty cycle.
Chassis Lower Temperature [20]
Displays the lower limit of the chassis temperature.
CPU Fan Min. Duty Cycle(%) [40]
Use the <+> and <-> keys to adjust the minimum chassis fan duty cycle. The values
range from 40% to 100%. When the chassis temperature is under 40ºC, the chassis
fan will operate at the minimum duty cycle.
on the chassis temperature.
The following four items appear only when you set Chassis Fan Prole to [Manual].
2.6.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators. Select Ignore if you do not want to detect this item.
2.6.6 Anti Surge Support [Enabled]
This item allows you to enable or disable the Anti Surge function.
Conguration options: [Disabled] [Enabled]
2-28
Chapter 2: Getting started
2.7 Boot menu
The Boot menu items allow you to change the system boot options.
2.7.1 Bootup NumLock State [On]
[On] Sets the power-on state of the NumLock to [On].
[Off] Sets the power-on state of the NumLock to [Off].
2.7.2 Full Screen Logo [Enabled]
[Enabled] Enables the full screen logo display feature.
[Disabled] Disables the full screen logo display feature.
Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.
Post Report [5 sec]
This item appears only when the Full Screen Logo item is set to [Disabled] and allows you to
set the waiting time for the system to display the post report. Conguration options: [1 sec] [2
sec] [3 sec] [4 sec] [5 sec] [6 sec] [7 sec] [8 sec] [9 sec] [10 sec] [Until Press ESC]
ASUS P8B75-M LX PLUS
2-29
2.7.3 Wait for ‘F1’ If Error [Enabled]
When this item is set to [Enabled], the system waits for the F1 key to be pressed when error
occurs. Conguration options: [Disabled] [Enabled]
2.7.4 Option ROM Messages [Force BIOS]
[Force BIOS] The third-party ROM messages will be forced to display during the boot
[Keep Current] The third-party ROM messages will be displayed only if the third-party
sequence.
manufacturer had set the add-on device to do so.
2.7.5 Setup Mode [EZ Mode]
[Advanced Mode] Sets Advanced Mode as the default screen for entering the BIOS setup
[EZ Mode] Sets EZ Mode as the default screen for entering the BIOS setup program.
program.
2.7.6 UEFI/Legacy Boot [Enabled both UEFI and Legacy]
[Enable both UEFI and Legacy] Enables both UEFI and Legacy boot.
[Disable UEFI] Enables the Legacy boot, and disables the UEFI boot.
[Disable Legacy] Enables the UEFI booth, and disables the Legacy boot.
2.7.7 PCI ROM Priority [Legacy ROM]
[Legacy ROM] Launch Legacy ROM
[EFI Compatibe ROM] Launch UEFI Compatible ROM
2.7.8 Boot Option Priorities
These items specify the boot device priority sequence from the available devices. The
number of device items that appears on the screen depends on the number of devices
installed in the system.
• To select the boot device during system startup, press <F8> when ASUS Logo
appears.
• To access Windows OS in Safe Mode, do any of the following:
• Press <F5> when ASUS Logo appears.
• Press <F8> after POST.
2.7.9 Boot Override
These items displays the available devices. The number of device items that appears on
the screen depends on the number of devices installed in the system. Click an item to start
booting from the selected device.
2-30
Chapter 2: Getting started
2.8 Tools menu
The Tools menu items allow you to congure options for special functions. Select an item
then press <Enter> to display the submenu.
2.8.1 ASUS EZ Flash 2 Utility
Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen.
For more details, see section 2.1.2 ASUS EZ Flash 2.
2.8.2 ASUS O.C. Prole
This item allows you to store or load multiple BIOS settings.
The Setup Prole Status items show Not Installed if no prole is created.
Save to Prole
Allows you to save the current BIOS settings to the BIOS Flash, and create a prole. Key in a
prole number from one to eight, press <Enter>, and then select Yes.
Load from Prole
Allows you to load the previous BIOS settings saved in the BIOS Flash. Key in the prole
number that saved your CMOS settings, press <Enter>, and then select Yes.
• DO NOT shut down or reset the system while updating the BIOS to prevent the
system boot failure!
• We recommend that you update the BIOS le only coming from the same memory/
CPU conguration and BIOS version.
2.8.3 ASUS SPD Information
DIMM Slot # [DIMM_A1]
Displays the Serial Presence Detect (SPD) information of the DIMM module installed on the
selected slot. Conguration options: [DIMM_A1] [DIMM_A2]
ASUS P8B75-M LX PLUS
2-31
2.9 Exit menu
The Exit menu items allow you to load the optimal default values for the BIOS items, and
save or discard your changes to the BIOS items. You can access the EZ Mode from the Exit
menu.
Load Optimized Defaults
This option allows you to load the default values for each of the parameters on the Setup
menus. When you select this option or if you press <F5>, a conrmation window appears.
Select Yes to load the default values.
Save Changes & Reset
Once you are nished making your selections, choose this option from the Exit menu to
ensure the values you selected are saved. When you select this option or if you press <F10>,
a conrmation window appears. Select Yes to save changes and exit.
Discard Changes & Exit
This option allows you to exit the Setup program without saving your changes. When you
select this option or if you press <Esc>, a conrmation window appears. Select Yes to discard
changes and exit.
ASUS EZ Mode
This option allows you to enter the EZ Mode screen.
Launch EFI Shell from lesystem device
This option allows you to attempt to launch the EFI Shell application (shellx64.e) from one of
the available devices that have a lesystem.
2-32
Chapter 2: Getting started
Appendices
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
This device may not cause harmful interference.
•
This device must accept any interference received including interference that may cause
•
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with manufacturer’s instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to which the receiver is
•
connected.
Consult the dealer or an experienced radio/TV technician for help.
•
The use of shielded cables for connection of the monitor to the graphics card is required
to assure compliance with FCC regulations. Changes or modications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
IC: Canadian Compliance Statement
Complies with the Canadian ICES-003 Class B specications. This device complies with RSS
210 of Industry Canada. This Class B device meets all the requirements of the Canadian
interference-causing equipment regulations.
This device complies with Industry Canada license exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
Cut appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada.
Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.
Cet appareil est conforme aux normes CNR exemptes de licence d’Industrie Canada. Le
fonctionnement est soumis aux deux conditions suivantes :
(1) cet appareil ne doit pas provoquer d’interférences et
(2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer
un fonctionnement non souhaité de l’appareil.
P8B75-M LX PLUS
A-1
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
VCCI: Japan Compliance Statement
VCCI Class B Statement
KC: Korea Warning Statement
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://csr.asus.com/english/REACH.htm.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.
ASUS Recycling/Takeback Services
ASUS recycling and takeback programs come from our commitment to the highest standards
for protecting our environment. We believe in providing solutions for you to be able to
responsibly recycle our products, batteries, other components as well as the packaging
materials. Please go to http://csr.asus.com/english/Takeback.htm for detailed recycling
information in different regions.
A-2
Appendices
ASUS contact information
ASUSTeK COMPUTER INC.
Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259
Telephone +886-2-2894-3447
Fax +886-2-2890-7798
E-mail info@asus.com.tw
Web site www.asus.com.tw
Technical Support
Telephone +86-21-38429911
Online support support.asus.com
ASUS COMPUTER INTERNATIONAL (America)
Address 800 Corporate Way, Fremont, CA 94539, USA
Telephone +1-812-282-3777
Fax +1-510-608-4555
Web site usa.asus.com
Technical Support
Telephone +1-812-282-2787
Support fax +1-812-284-0883
Online support support.asus.com
ASUS COMPUTER GmbH (Germany and Austria)
Address Harkort Str. 21-23, D-40880 Ratingen, Germany
Fax +49-2102-959911
Web site www.asus.de
Online contact www.asus.de/sales
Technical Support
Telephone +49-1805-010923*
Support Fax +49-2102-9599-11
Online support support.asus.com
* EUR 0.14/minute from a German xed landline; EUR 0.42/minute from a mobile phone.
P8B75-M LX PLUS
A-3
DECLARATION OF CONFORMITY
Per FCC Part 2 Section 2. 1077(a)
Responsible Party Name: Asus Computer International
Address: 800 Corporate Way, Fremont, CA 94539.
Phone/Fax No: (510)739-3777/(510)608-4555
hereby declares that the product
Product Name : Motherboard
Model Number : P8B75-M LX PLUS
Conforms to the following specifications:
FCC Part 15, Subpart B, Unintentional Radiators
Supplementary Information:
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Representative Person’s Name : Steve Chang / President
Signature :
Date : Jul. 09, 2012
Ver. 120601
EC Declaration of Conformity
We, the undersigned,
Manufacturer:
ASUSTek COMPUTER INC.
Address, City:
No. 150, LI-TE RD., PEITOU, TAIPEI 112, TAIWAN R.O.C.
Country:
TAIWAN
Authorized representative in Europe:
ASUS COMPUTER GmbH
Address, City: HARKORT STR. 21-23, 40880 RATINGEN
Country:
GERMANY
declare the following apparatus:
Product name : Motherboard
Model name : P8B75-M LX PLUS
conform with the essential requirements of the following directives:
2004/108/EC-EMC Directive
EN 55022:2010
EN 61000-3-2:2006
EN 55013:2001+A1:2003+A2:2006
EN 55024:2010
EN 61000-3-3:2008
EN 55020:2007+A11:2011
1999/5/EC-R &TTE Directive
EN 300 328 V1.7.1(2006-10)
EN 300 440-1 V1.6.1(2010-08)
EN 300 440-2 V1.4.1(2010-08)
EN 301 511 V9.0.2(2003-03)
EN 301 908-1 V4.2.1(2010-03)
EN 301 908-2 V3.2.1(2007-05)
EN 301 893 V1.4.1(2005-03)
EN 302 544-2 V1.1.1(2009-01)
EN 50360:2001
EN 50371:2002
EN 50385:2002
EN 301 489-1 V1.9.2(2011-09)
EN 301 489-3 V1.4.1(2002-08)
EN 301 489-4 V1.3.1(2002-08)
EN 301 489-7 V1.3.1(2005-11)
EN 301 489-9 V1.4.1(2007-11)
EN 301 489-17 V2.1.1(2009-05)
EN 301 489-24 V1.5.1(2010-09)
EN 302 326-2 V1.2.2(2007-06)
EN 302 326-3 V1.3.1(2007-09)
EN 301 357-2 V1.3.1(2006-05)
EN 302 623 V1.1.1(2009-01)
2006/95/EC-LVD Directive
EN 60950-1 / A11:2009
EN 60950-1 / A12:2011
EN 60065:2002+A1:2006+A11:2008
EN 60065:2002 / A12:2011
2009/125/EC-ErP Directive
Regulation (EC) No. 1275/2008
EN 62301:2005
Regulation (EC) No. 642/2009
EN 62301:2005
Regulation (EC) No. 278/2009
EN 62301:2005
Ver. 120601
CE marking
Declaration Date: Jul. 9, 2012
Year to begin affixing CE marking:2012
Position : CEO
Name : Jerry Shen
Signature : __________
(
EC conformit
y
markin
g)
A-4
Appendices
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