AOpen MK86L User Manual
MMKK8866--NN // MMKK8866--LL // MMKK8866--11339944
MK86-N / MK86-L / MK86-1394
DOC. NO.: MK86L-OL-E0310A
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MK86-N / MK86-L / MK86-1394...........................................................................................................1
What’s in this manual......................................................................................................................................................2
You Must Notice..............................................................................................................................................................8
Before You Start..............................................................................................................................................................9
Overview.......................................................................................................................................................................10
MK86-N / MK86-L / MK86-1394 Comparison Table.......................................................................................................11
Feature Highligh t ...........................................................................................................................................................12
Quick Installation Pr ocedu re .........................................................................................................................................16
Motherboard Map..........................................................................................................................................................17
Block Diagram...............................................................................................................................................................18
Hardware Instal lation................................................................................................................19
About “Manufacturer Upgrade Optional” and “User Upgrade Optional”…......................................................................20
CPU Installation ............................................................................................................................................................21
AOpen Overheat Protection (O.H.P.) Technology..........................................................................................................2 3
CPU Over-current Prot ectio n.........................................................................................................................................24
Full-range Adjustable CPU Core Voltage.......................................................................................................................25
Setting CPU Frequency.................................................................................................................................................26
Supported CPU Frequency ...........................................................................................................................................27
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AOpen “Watch Dog ABS” ..............................................................................................................................................28
CPU and Housing Fan Connector (with H/W Monitoring) ..............................................................................................29
DIMM Sockets...............................................................................................................................................................3 0
ATX Power Connector...................................................................................................................................................32
AC Power Auto Reco very..............................................................................................................................................32
IDE and Floppy Connector............................................................................................................................................ 33
ATA/133 Supported .......................................................................................................................................................35
Serial ATA Supported (With RAID Function)..................................................................................................................36
Connecting Serial ATA Disk...........................................................................................................................................37
Front Panel Connector ..................................................................................................................................................39
IrDA Connector .............................................................................................................................................................4 0
AGP (Accelerated Graphic Port) 8X Expansion Slot......................................................................................................41
10/100/1000 Mbps LAN onboard ...................................................................................................................................42
Support eight USB 2.0 connectors ................................................................................................................................43
Color Coded Back Panel...............................................................................................................................................44
Super 5.1 Channel Audio Effect....................................................................................................................................45
Front Audio Connector ..................................................................................................................................................46
S/PDIF (Sony/Phili ps Digital In terfac e) Co nnect or .........................................................................................................4 7
Case Open Connector...................................................................................................................................................4 8
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CD Audio Connector .....................................................................................................................................................49
AUX-IN Connector.........................................................................................................................................................50
WOL (Wake on LAN).....................................................................................................................................................51
IEEE 1394 Connector (for MK86-1394) ......................................................................................................................... 52
JP14 Clear CMOS D ata Jumpe r....................................................................................................................................53
JP28 KB/Mouse Wake -up J ump er.................................................................................................................................54
STBY LED.....................................................................................................................................................................55
AGP Protection Technology and AGP LED....................................................................................................................56
Battery-less and Long Life Design.................................................................................................................................57
Resetable Fuse .............................................................................................................................................................58
2200μF Low ESR Capacito r .........................................................................................................................................59
RAID Introduction......................................................................................................................61
What’s RAID? ................................................................................................................................................................6 1
What are the RAID l evels ? ............................................................................................................................................62
HDD Capacity of RAID Levels.......................................................................................................................................66
PHOENIX-AWARD BIO S..............................................................................................................67
How To Use Phoenix-Award™ BIOS Setup Program ....................................................................................................68
How To Enter BIOS Setup.............................................................................................................................................69
BIOS Upgrade under Windows environment .................................................................................................................70
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Open JukeBox Player....................................................................................................................................................72
Vivid BIOS technology ...................................................................................................................................................76
Driver and Utility .......................................................................................................................77
Auto-run Menu from Bonus CD .....................................................................................................................................77
Installing VIA 4 in 1 Driver.............................................................................................................................................7 8
Installing Audio Driver ...................................................................................................................................................79
Installing USB2.0 Driver ................................................................................................................................................80
Installing LAN Driv er (for MK86-L ) ................................................................................................................................81
Installing LAN Driver (for MK86-N and MK86-1394)......................................................................................................87
Installing VIA Serial ATA RAID Driver ............................................................................................................................93
AOConfig Utility .............................................................................................................................................................94
The noise is gone!! ---- SilentTek ..................................................................................................................................96
EzClock.........................................................................................................................................................................99
Glossar y ..................................................................................................................................103
AC97 CODEC .............................................................................................................................................................103
ACPI (Advanced Configurat ion & Power I nterf ace) .....................................................................................................103
ACR (Advanced C ommuni cati on Rise r) ....................................................................................................................... 103
AGP (Accelerated Graphic Port)..................................................................................................................................104
AMR (Audio/Modem Riser) .......................................................................................................................................... 104
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ATA (AT Attachment)...................................................................................................................................................104
BIOS (Basic Input/Output System).............................................................................................................................. 105
Bluetooth.....................................................................................................................................................................105
CNR (Communication and Networking Riser)..............................................................................................................10 6
DDR (Double Data Rate) RAM....................................................................................................................................106
ECC (Error Checking and Corre ction) ......................................................................................................................... 106
EEPROM (Electronic Erasabl e Prog rammabl e ROM)..................................................................................................10 7
EPROM (Erasable Program mabl e ROM) .....................................................................................................................107
EV6 Bus...................................................................................................................................................................... 107
FCC DoC (Declarati on of C onfo rmity ) .........................................................................................................................1 07
FC-PGA (Flip Chip-Pin Grid Array)..............................................................................................................................108
FC-PGA2 (Flip Chip-Pin Grid Array)............................................................................................................................108
Flash ROM..................................................................................................................................................................108
Hyper Threading .........................................................................................................................................................1 08
IEEE 1394 ...................................................................................................................................................................108
Parity Bit .....................................................................................................................................................................109
PCI (Peripheral Component Interface) Bus .................................................................................................................109
PDF Format................................................................................................................................................................. 110
PnP (Plug and Play).................................................................................................................................................... 110
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POST (Power-On Self Test) ........................................................................................................................................ 110
PSB (Processor Syst em Bus ) Cloc k............................................................................................................................ 110
RDRAM (Rambus Dynamic Random Access Memory).................................................................................................111
RIMM (Rambus Inline Memory Module) .......................................................................................................................111
SDRAM (Synchronous DRAM).....................................................................................................................................111
SATA (Serial ATA) ........................................................................................................................................................111
SMBus (System Management Bus)............................................................................................................................. 112
SPD (Serial Presen ce Det ect).....................................................................................................................................112
USB 2.0 (Universal Se rial Bus) ...................................................................................................................................112
VCM (Virtual Channel Memory)................................................................................................................................... 112
Wireless LAN – 802. 11b.............................................................................................................................................. 113
ZIP file......................................................................................................................................................................... 113
Troubleshooting.......................................................................................................................114
Technical Support ...................................................................................................................118
Product Registr ation ...............................................................................................................121
How to Contact Us ..................................................................................................................122
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YYoouu MMuusstt NNoottiiccee
Adobe, the Adobe logo, Acrobat is trademarks of Adobe Systems Incorporated.
AMD, the AMD logo, Athlon and Duron are trademarks of Advanced Micro Devices, Inc.
Intel, the Intel logo, Intel Celeron, Pentium II, Pentium III, Pentium 4 are trademarks of Intel Corporation.
Microsoft, Windows, and Windows logo are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
All product and brand names used on this manual are used for identification purposes only and may be the registered
trademarks of their respective owners.
All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right
to revise this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that
may appear in this manual, including the products and software described in it.
This documentation is protected by copyright law. All rights are reserved.
No part of this document may be used or reproduced in any form or by any means, or stored in a database or retrieval
system without prior written permission from AOpen Corporation.
Copyright
©
1996-2003, AOpen Inc. All Rights Reserved.
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BBeeffoorree YYoouu SSttaarrtt
This Online Manual will introduce to the user how this product is installed. All useful information will be described in later
chapters. Please keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved
in PDF format
get free download from Adobe web site
Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper
size and set 2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer
driver.
Thanks for the help of saving our earth.
, we recommend using Adobe Acrobat Reader 5.0 for online viewing, it is included in Bonus CD disc or you can
.
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OOvveerrvviieeww
Thank you for choosing AOpen MK86-N / MK86-L / MK86-1394. The MK86-N / MK86-L / MK86-1394 is AMD® Socket 754
motherboard (M/B) based on the micro ATX form factor featuring the VIA K8T800 chipset
the M/B, the MK86-N / MK86-L / MK86-1394 comes with AMD
side bus. In the AGP performance, it has one AGP slot and supports AGP 8X/4X mode and pipelined spilt-transaction long burst
transfer up to 2.1GB/sec. With memory controller built in the Athlon 64 processor, DDR400(PC3200)
DDR266(PC2100)
up to 2GB. The on-board IDE controller supports Ultra
DMA 66/100/133 mode and the transfer rate up to
133MB/s. MK86-N / MK86-L / MK86-1394 also has
two Serial ATA connectors and they aim to provide you
an even faster transfer rate of 150 Mbytes/second.
Beside, MK86-N / MK86-L / MK86-1394 has an AC97
CODEC
supports 5.1 channels, providing high performance
and magic surround stereo sound to let people enjoy
working with it. More than that, this motherboard
supports USB 2.0
480Mbps and IEEE1394
data transfer rate up to 400Mbps. Now, enjoy all
features from AOpen MK86-N / MK86-L / MK86-1394.
Realtek ALC655 chipset onboard and
®
Socket 754 Athlon 64 processor and 200MHz QDR CPU front
DDR RAM can be applied to the MK86-N / MK86-L / MK86-1394 and DDR400 maximum memory size can be
function with a fancy speed of up to
(for MK86-1394) provided
. As high performance chipset built in
, DDR333(PC2700) and
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MMKK8866--NN // MMKK8866--LL // MMKK8866--11339944 CCoommppaarriissoonn TTaabbllee
Following we list different functions in those three models. “V” represents those functions that the model equips with and “X”
represents functions that model doesn’t have. Please always refer to this page to see the functions of your model.
IEEE 1394 Function
IEEE 1394 Connector
10/100Mbps LAN
Gigabits LAN
MK86-N MK86-L MK86-1394
X X V
X X V
V V V
X V X
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CPU
Supports AMD® Socket 754 Athlon 64 CPU with 800MHz Hyper Transport Bus.
Chipset
The K8T800 North Bridge is a high performance and energy efficient solution for the implementation of desktop PC systems with
Hyper Transport CPU host interface based on AMD Athlon 64 processors. The K8T800 chipset provides support for AMD Athlon
64 processors via the Hyper Transport Bus and South Bridge VT8237 chipset via the V-Link Host Controller. The V-Link Host
Controller in the North Bridge connects it to the South Bridge and provides superior performance between the CPU / DRAM
subsystem, V-Link bus and AGP 8X graphics controller bus with pipelined, burst and concurrent operation. The South Bridge
VT8237 integrates PCI controller, networking MAC, IDE controller, two-channel Serial ATA (with RAID function) controller and
four ports USB 2.0 controller.
Ultra DMA 66/100/133 Bus Master IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels,
supports Ultra DMA 66/100/133, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 4, and supports Enhanced IDE devices.
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LAN Port
For MK86-L, on the strength of BCM5705 controller on board, which is a highly integrated Platform LAN Connect device, it
provides 10/100/1000Mbps Ethernet for office and home use. For MK86-N and MK86-1394, with BCM4401 network controller on
boards, it provides 10/100Mbps Ethernet for office and home use.
Serial ATA
This motherboard comes with an integrated SATA controller in VIA VT8237, aiming to provide you an even faster transfer rate of
150 Mbytes/second. The SATA connectors (port 1 and port 2) provided by VIA VT8237 support RAID 0, RIAD 1, RAID 0+1 and
JBOD mode.
Expansion Slots
Including three 32-bit/33MHz PCI and one AGP 8X slots. The PCI local bus throughput can be up to 132MB/s. The Accelerated
Graphics Port (AGP) specification provides a new level of video display sophistication and speed. The AGP video cards support
data transfer rate up to 2.1GB/s. As MK86-N / MK86-L / MK86-1394 includes one AGP expansion slot for a bus mastering AGP
graphic card for AD and SBA signaling, MK86-N / MK86-L / MK86-1394 can support 133MHz 4X/8X mode. MK86-N / MK86-L /
MK86-1394 also support three master PCI slots for arbitration and decoding functions.
Watch Dog ABS
Includes AOpen “Watch Dog ABS” function that can auto-reset system in few seconds when you fail the system overclocking.
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Memory
With memory controller built in the AMD Athlon 64 processors, which is a brand new design in AMD Athlon 64 CPUs, MK86-N /
MK86-L / MK86-1394 can support Double-Data-Rate (DDR) RAM
between the RAM and the data buffers at 400/333/266/200 MHz. The four banks of DDR RAM can be composed of an arbitrary
mixture of 64, 128, 256, 512,1024MB DDR RAM and support DDR400/DDR333/266 maximum up to 2GB.
. The DDR RAM interface allows zero wait state bursting
On-board AC97 Sound
MK86-N / MK86-L / MK86-1394 uses the AC97 CODEC RealTek ALC655 chip, which supports high quality of 5.1 Channel audio
effects. This on-board audio includes a complete audio recording and playback system.
IEEE 1394 (for MK86-1394)
This motherboard comes with great function of IEEE1394 which has transfer data rate up to 400Mbps.
Eight USB 2.0 Connectors
Provides four USB ports for USB interface devices, such as mouse, keyboard, modem, scanner, etc. The new USB 2.0, with
fancy speed up to 480Mbps, is 40 times faster than the traditional ones. Except for the speed increase, USB 2.0 supports old
USB 1.0/1.1 software and peripherals, offering impressive and even better compatibility to customers.
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1MHz Stepping CPU Frequency Adjustment
Provides “1MHz Stepping CPU Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU FSB
frequency from 200~232MHz by 1MHz stepping, and lets your system get maximum performance.
Power Management/Plug and Play
MK86-N / MK86-L / MK86-1394 support power management function that confirms to the power-saving standards of the U.S.
Environmental Protection Agency (EPA) Energy Star program. It also offers Plug-and-Play
configuration problems, thus making the system much more user-friendly.
, which helps saving users from
Hardware Monitoring Management
Supports CPU or system fans status, temperature, voltage monitoring and alert through on-board hardware monitor module and
AOpen Hardware Monitoring Utility.
Enhanced ACPI
Fully implement the ACPI standard for Windows® 95/98/ME/NT/2000/XP series compatibility, and supports Soft-Off, STR
(Suspend to RAM, S3), STD (Suspend to Disk, S4), WOM (Wake On Modem), WOL (Wake On LAN) features.
Super Multi-I/O
MK86-N / MK86-L / MK86-1394 provide two high-speed UART compatible serial ports and one parallel port with EPP and ECP
capabilities. UART2 can also be directed from COM2 to the Infrared Module for the wireless connections.
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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to install your system. Follow each step accordingly.
1. Installing CPU and Fan
2. Installing System Memory (DIMM)
3. Connecting Front Panel Cable
4. Connecting IDE and Floppy Cable
5. Connecting A TX Power Cable
6. Connecting Back Panel Cable
7. Power-on and Load BIOS Setup Default
8. Setting CPU Frequency
9. Reboot
10. Installing Operating System (such as Windows XP)
11. Installing Driver and Utility
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CD-IN Connector
AUX-IN Connector
Front Audio Connector
S/PDIF Connector
AGP 8x Slot
FDD Connector
WOL Connector
32-bit PCI Expansion Slot x3
JP14 Clear CMOS Jum
SYSFAN2 Connector
USB 2.0 Connector
IEEE 1394 Connector x2
(for MK86-1394)
Case Open Connector
Front Panel Connector
Serial A TA connector x2
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Motherboard Map
Colored Back Panel
JP28 Keyboard/Mouse
Wakeup Jumper
CPUFAN Connector
IrDA Connector
754-pin CPU Socket with
Voltage and Frequency
Auto-Detection that supports
TM
AthlonTM 64
AMD
184-pin DIMMx2 supports
DDR400/DDR333/DDR266
max up to 2GB
VIA® Apollo K8T800 Chipset
and VT8237 SB
2200μF Low ESR Capacitors
er
IDE Connector x 2
(ATA/66/ 100/ 133 suppo rted)
SYSFAN1 Connector
4-pin 12V ATX Power Connector
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ATX Power Connector
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BBlloocckk DDiiaaggrraamm
DDR400/DDR333/266 RAM
to 2GB
DDR SDRAM Socket x3
800 MHz Hyper
Socket 754
AMD Athlon 64
CPU
AGP 8X Slot
Transport Bus
LAN connect Component
AGP Bus
Floppy Disk Drive x2
VIA K8T800
V-Link Bus
BCM4401 (for MK86-N & MK86-
BCM5707 (for MK86-L)
1394)
1stUSB Port
2ndUSB Port
3rdUSB Port
4th USB Port
USB connector x8
PCI Bus
ATA
66/100/133
32-bit PCI Slot x3
Primary
Channel
Secondary
Channel
VT8237
Serial ATA
AC’97 Link
IDE Drive x4
Serial ATA Devices x2
Audio CODEC
4MBit Flash EEPROM
Parallel Port
Serial Port x2
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HHaarrddwwaarree IInnssttaallllaattiioonn
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards,
and other components. Always observe the following precautions before you install a system
component.
1. Do not remove a component from its protective packaging until you are ready to install it.
2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a
component. If a wrist strap is not available, maintain contact with the system unit throughout
any procedures requiring ESD protection.
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AAbboouutt ““MMaannuuffaaccttuurreerr UUppggrraaddee OOppttiioonnaall”” aanndd ““UUsseerr UUppg
OOppttiioonnaall””……
When you read this online manual and start to assemble your computer system, you may find some of functions are called
“Manufacturer Upgrade Optional”, and some are called “User Upgrade Optional”. Though all AOpen motherboards include many
amazing and powerful features, in some situations, these powerful features are not used to every user. Hence, we changed
some key features as “Manufacturer Upgrade Optional” for you to choose. Some optional functions that can be upgraded by
users, we call them “User Upgrade Optional”. As for those optional functions that can’t be upgraded by ourselves, we call them
“Manufacturer Upgrade Optional”. If needed, you can contact our local distributors or resellers for purchasing “User Upgrade
Optional” components, and again you can visit AOpen official web site: http://english.aopen.com.tw/
grraaddee
for more detail information.
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This motherboard supports AMD® Athlon 64 Socket 754 CPU. Be careful of CPU orientation when you plug it into CPU socket
(with CPU Overheat Protection function implemented, the system will be automatically power off when the temperature of CPU
reached 97 degree).
1. Pull up the CPU socket lever and
up to 90-degree angle.
2. Locate Pin 1 in the socket and look for a black dot or cut edge on the
CPU upper interface. Match Pin 1 and cut edge, then insert the CPU into
the socket.
CPU pin 1
and cut edge
CPU socket
Lever
Note: This picture is for example only; it may not exactly be the same motherboard.
CPU cut edge
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3. Press down the CPU socket lever and finish
CPU installation.
Note: This picture is for example only; it may not exactly be the same motherboard.
CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
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damage the CPU.
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AAOOppeenn OOvveerrhheeaatt PPrrootteeccttiioonn ((OO..HH..PP..)) TTeecchhnnoollooggyy
With AMD platform substantially keeps increasing the speed of its CPU, it inevitably led to the
annoying problem of high CPU operation temperature at the same time. In order to prevent
accidental failure of CPU fan, which could cause the burning
down of the Athlon 64 CPU, we, AOpen, have meticulously
developed a new technology, named, O.H.P. (Overheat
Protection) Technology to protect them. Thanks to the
intelligent monitoring design of AOpen O.H.P. technology,
user can now finally set their mind at ease even when fan
failed to work without fearing the possible damage of CPU.
Under the circumstances that CPU fan is running properly,
Athlon 64 temperature should be way below the highest
temperature limit of 97℃. However, if CPU fan accidentally
becomes malfunction or improperly installed, the CPU
temperature would rocket abruptly, and you may find your
system hang up or crying over the smoking CPU if you
haven’t installed AOpen O.H.P. previously. With AOpen O.H.P.
technology applied, the specific thermal detection pins on
Athlon 64 CPU would sense voltage difference when
processor is overheated with fan failed, and the overheat
protection system would immediately send out a signal to abort your system by cutting CPU electricity before any damage is
done. Unlike other manufacturers who use BIOS or software to control the power supply of CPU, AOpen O.H.P. Technology is
purely hardware-controlled the minute after system boot-up, and occupies no system resource. We are pleasant to phase in this
practical function on all AOpen AMD series motherboards to protect customer’s valuable hardware and personal data.
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Over Current Protection has been popularly implemented on ATX 3.3V/5V/12V switching power supply for a while. However,
new generation CPU is able to use regulator of different voltages to transfer 12V to CPU voltage (for example, to 2.0V). This
motherboard is with switching regulator onboard that supports CPU over-current protection, and it applies to 3.3V/5V/12V power
supply for providing full line over-current protection.
ATX Switching Power Supply
Note: Although we have implemented protection circuit try to prevent any human operating
mistake, there is still certain risk that CPU, memory, HDD, add-on cards installed on this
motherboard may be damaged because of component failure, human operating error or unknown
nature reason. AOpen cannot guaranty the protection circuit will always work perfectly.
12V (Protected by power supply)
3.3V (Protected by power supply)
5V (Protected by power supply)
Onboard Power Regulator
(Over-Current Protection)
CPU Core Voltage
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FFuullll--rraannggee AAddjjuussttaabbllee CCPPUU CCoorree VVoollttaaggee
This function is dedicated to overclockers. The CPU core voltage of this motherboard is adjustable 0.8V to 1.55V by 0.025V
stepping. But this motherboard can also automatically detect CPU VID signal and generates proper CPU core voltage.
BIOS Setup > Frequency/Voltage Control > CPU Voltage Setting
Warning: Higher CPU core voltage may be
able to increase CPU speed for overclocking,
but you may damage the CPU or reduce the
CPU lifecycle.
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SSeettttiinngg CCPPUU FFrreeqquueennccyy
This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches
are needed.
BIOS Setup > Frequency/Voltage Control > CPU Speed Setting
CPU Ratio
CPU Clock
(By manual Adjustment)
Warning: VIA® Apollo K8T800 chipset supports
200MHz system clock and 66MHz AGP clock,
higher clock setting may cause serious system
damage.
Home
From 8x to 50x step 1x (auto-detection)
200~232MHz by 1MHz stepping adjustment technology
Warning: If you have adjusted CPU ratio on your
current CPU, and planed to replace a new CPU,
please use <Home> key or Clear CMOS to restore
the default setting when changing a new CPU.
Tip: If your system hangs or fails to boot because of
overclocking, simply use <Home> key to restore the
default setting or you can wait the AOpen “Watch Dog
ABS” reset the system after five seconds and system
will auto-detect hardware again.
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l
SSuuppppoorrtteedd CCPPUU FFrreeqquueennccyy
Core Frequency = CPU Bus Clock * CPU Ratio PCI Clock = CPU Bus Clock / Clock Ratio
AGP Clock = PCI Clock x 2
CPU
Athlon 64 3000+ 1.6GHz 200MHz 8x
Athlon 64 3200+ 2.0GHz 200MHz 10x
Athlon 64 3400+ 2.2GHz 200MHz 11x
Note: With CPU speed changing rapidly, there might be fastest CPU on
the market by the time you received this installation guide. This table is
kindly for your references only.
Note: This motherboard support
CPU auto-detection function.
Therefore you don’t need to
setup the CPU frequency
manually.
CPU Core
Frequency
System
Clock
Ratio
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MMKK8866--NN // MMKK8866--LL // MMKK8866--11339944
OOnnlliinnee MMaannuuaal
l
AAOOppeenn ““WWaattcchh DDoogg AABBSS””
CPU FSB
system to reboot in five seconds. Then, BIOS will detect the CPU’s default frequency and POST again. With this special feature,
you can easily overclock your system to get higher system performance without removing the cover of system housing, and be
able to set the jumper to clear CMOS data when your system hanged.
frequency by user’s setting that stored in the BIOS. If system failed in BIOS POST, the “Watch Dog ABS” will reset the
Enable/Disable Signal
AOpen
Watch Dog ABS
With this motherboard, AOpen provides a very special, useful feature for overclockers.
When you power-on the system, the BIOS will check last system POST
succeeded, the BIOS will enable “Watch Dog ABS” function immediately, and set the
from BIOS
BIOS
Reset Signal
Clock Generator
Countdown about
5 seconds if fails
in POST
CPU
status. If it
CPU ID Signal
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MMKK8866--NN // MMKK8866--LL // MMKK8866--11339944
OOnnlliinnee MMaannuuaal
l
CCPPUU aanndd HHoouussiinngg FFaann CCoonnnneeccttoorr ((wwiitthh HH//WW MMoonniittoorriinngg)
Plug in the CPU fan cable to the 3-pin CPUFAN connector. If you have chassis fan, you can also plug it on SYSFAN1 or
SYSFAN2 connector.
SYSFAN2 Connector
CPUFAN Connector
SYSFAN1 Connector
GND
+12V
SENSOR
SENSOR
GND
+12V
SENSOR
Note: Some CPU fans do not have
sensor pin, so that they cannot support
fan monitoring.
)
GND
+12V
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MMKK8866--NN // MMKK8866--LL // MMKK8866--11339944
OOnnlliinnee MMaannuuaal
l
DDIIMMMM SSoocckkeettss
This motherboard has two 184-pin DDR DIMM sockets that allow you to install DDR266/333/400 memory up to 2GB. Non-ECC
DDR RAM is supported; otherwise it will cause serious damage on memory sockets or RAM module.
Warning: This
motherboard
supports DDR RAM.
DIMM 1
DIMM 2
Please do not install
the SDRAM on the
DDR RAM sockets;
otherwise it will
cause serious
damage on memory
sockets or SDRAM
module.
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