No part of this manual may be reproduced, transcribed, transmitted, or translated in
any language, in any form or by any means, except duplication of documentation by
the purchaser for backup purpose, without written consent of ASRock Inc.
Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for
identication or explanation and to the owners’ benet, without intent to infringe.
Disclaimer:
Specications and information contained in this manual are furnished for informational use only and subject to change without notice, and should not be constructed
as a commitment by ASRock. ASRock assumes no responsibility for any errors or
omissions that may appear in this manual.
With respect to the contents of this manual, ASRock does not provide warranty of
any kind, either expressed or implied, including but not limited to the implied warran-
ties or conditions of merchantability or tness for a particular purpose.
In no event shall ASRock, its directors, ofcers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from
any defect or error in the manual or product.
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.
CALIFORNIA, USA ONLY
The Lithium battery adopted on this motherboard contains Perchlorate, a toxic
substance controlled in Perchlorate Best Management Practices (BMP) regulations
passed by the California Legislature. When you discard the Lithium battery in California, USA, please follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlorate”
The terms HDMI™ and HDMI High-Denition Multimedia Interface, and the HDMI
logo are trademarks or registered trademarks of HDMI Licensing LLC in the United
States and other countries.
4.2.4 Contact Information .............................................. 39
4
Page 5
Chapter 1: Introduction
Thank you for purchasing ASRock IMB-385 motherboard, a reliable motherboard
produced under ASRock’s consistently stringent quality control. It delivers excellent
performance with robust design conforming to ASRock’s commitment to quality and
endurance.
In this manual, chapter 1 and 2 contain introduction of the motherboard and step-
by-step guide to the hardware installation. Chapter 3 and 4 contain the conguration
guide to BIOS setup and information of the Support CD.
Because the motherboard specications and the BIOS software might be
updated, the content of this manual will be subject to change without no-
tice. In case any modications of this manual occur, the updated version
will be available on ASRock website without further notice. You may nd
the latest VGA cards and CPU support lists on ASRock website as well.
ASRock website http://www.asrock.com
If you require technical support related to this motherboard, please visit
our website for specic information about the model you are using.
www.asrock.com/support/index.asp
1.1 Package Contents
ASRock IMB-385 Motherboard
(Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm)
ASRock IMB-385 Driver CD
ASRock IMB-385 Jumper setting instruction
1 x I/O Panel Shield
5
Page 6
1.2 Specications
Form
Factor
Processor
System
Expansion
Slot
Memory
Graphics
Ethernet
SATA
Rear I/O
Dimensions Micro-ATX (9.6-in x 9.6-in)
CPU
Core
Number
Max Speed (By CPU)
L3 Cache(By CPU)
ChipsetH81
BIOSUEFI
PCI2
Mini-PCIe0
mSATA0
PCIe1 (x16)+ 1 (x4)
CFast Card
Socket
Technology
Max. 16GB
Socket 2 x Long DIMM
ControllerIntel® HD Graphics (By CPU)
VRAMShared Memory
VGA Supports max resolution 1920x1200
LVDSNo
HDMISupports HDMI 1.4a, max resolution 1920x1200
DVINo
DisplayPort Supports max resolution 2560x1600
Multi Display Yes (Dual Monitor)
Ethernet10/100/1000 Mbps
ControllerGbE LAN: Intel® I217V
Connector1 x RJ-45
Max Data
Transfer
Rate
VGA1
DVI0
HDMI1
DisplayPort 1
Ethernet1
Socket LGA1150 for Intel® Core i7/i5/i3/Celeron
(Haswell)
(By CPU, Max 4)
0
Dual Channel DDR3 1066/1333/1600 MHz
SDRAM
2 x SATA2 (3.0Gb/s), 2 x SATA3 (6.0Gb/s)
6
Page 7
USB
Audio3 (Mic-In, Line-Out, Line-In)
Serial2 (RS-232/422/485)
PS/21 (Combo)
USB- 2 x USB 2.0 headers
LVDS/
Inverter
VGA0
Serial 4 (RS-232)
SATA2 x SATA2 (3.0Gb/s), 2 x SATA3 (6.0Gb/s)
Internal
Connector
Watchdog
Timer
Power
Requirements
EnvironmentTemperature 0ºC – 60ºC
mPCIe0
Parallel1
mSATA0
IrDA0
GPIO 8-bit4 x GPI + 4 x GPO
SATA PWR
Output Con
Speaker
Header
OutputOutput from super I/O to drag RESETCON#
Interval256 Segments, 0,1,2…255 Sec/Min
Input PWRATX PWR (8 + 24)
Power On
6 (2 x USB 3.0 compliant, 4 x USB 2.0
compliant)
0
0
0
AT/ATX Supported
-AT : Directly PWR on as power input ready
-ATX : Press button to PWR on after power
input ready
7
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1.3 Motherboard Layout
ATXP WR 1
I ntel
H81
DDR 3_A 1 ( 64 bi t, 24 0-p in mod ule )
DDR 3_B 1 ( 64 bi t, 24 0-p in mod ule )
PCI1
PCI2
PCIE1
PCIE2
1
HD_AUDI O1
COM6
1
COM5
1
COM3
1
COM4
1
CMO S
Bat ter y
HDLED R ESET
PLED PWRBTN
PANEL1
1
Supe r
I/O
SATA_5
SATA_1
SATA_2SATA_6
CLRCMOS 1
1
CHA_FAN2
64Mb
BIOS
CPU_FAN1
CPU_FAN2
24. 4c m ( 9.6 in)
24. 4c m ( 9.6 in)
USB8_9
1
1
CI2
1
CI1
1
LPT1
USB 3 .0
T: USB0
B: US B1
Top:
RJ-4 5
USB 2 .0
T: USB4
B: US B5
USB 2 .0
T: USB2
B: US B3
HDMI
BUZZ 1
Top:
Line In
Cent er:
Line Out
Bott om:
Mic I n
1
JGPIO1
COM 2
VGA 1
2
3
4
5
6
7
9
10
11
8
12
13
14
16
15
17
18
19
20
21
22
23
24
25
26
27
28
29
IM B- 3 85
COM 1
PS2
Keybo ard
/Mous e
DISP LAY1
ATX12V 1
PWR_JP1
1
USB10_11
1
AUDIO
CODEC
CHA_FAN1
TPM1
1
1
1
PWR_LOSS 1
JGPIO_PWR1
1
JGPIO_SET1
1
8
Page 9
1 :
8-pin ATX Power Input Connector
2 :
3-Pin CPU FAN Connector
3 :
4-Pin CPU FAN Connector
4 : DDR3 DIMM Slots (DDR3_A1, DDR3_B1)
5 : 24-pin ATX Power Input Connector
6 : PWR LOSS Header
7 : RS-232 Port 4 Pin Header (COM5)
8 : RS-232 Port 4 Pin Header (COM6)
9 : RS-232 Port 4 Pin Header (COM4)
10 : RS-232 Port 4 Pin Header (COM3)
11 : Digital Input / Output Pin Header
12 : Digital Input / Output Power Selection
13 : Digital Input / Output
14 : AT/ATX Mode Selection
15 : TPM Header
16 :
System Panel Header
17 : SATA2 Connector (SATA_5)
18 : SATA2 Connector (SATA_6)
19 : SATA3 Connector (SATA_2)
20 : SATA3 Connector (SATA_1)
21 : Printer Port Header
22 :
USB2.0 Header (
23 :
USB2.0 Header (
24 : Chassis Intrusion Header 1
25 : Chassis Intrusion Header 2
26 :
Front Panel Audio Header
27 : Clear CMOS Header
28 :
4-Pin Chassis FAN Connector
29 :
3-Pin Chassis FAN Connector
Default Value Setting
USB10_11)
USB8_9)
9
Page 10
1.4 I/O Panel
1
4
2
3
5
6
7
12
13
** 1 COM Port (COM1)
** 2 COM Port (COM2)
3 USB 2.0 Ports (USB2_3)
* 4 LAN RJ-45 Port
5 Line In (Light Blue)
6 Line out (Lime)
7 Microphone (Pink)
* There are two LED next to the LAN port. Please refer to the table below for the LAN port LED
indications.
Activity/Link LED SPEED LED
Status Description Status Description
11
LAN Port LED Indications
10
8 USB 2.0 Ports (USB4_5)
9 HDMI Port (HDMI1)
10 USB 3.0 Ports (USB0_1)
11 VGA Port (VGA1)
12 PS/2 Mouse/Keyboard Port (Y Cable)
13 DisplayPort (DP1)
89
ACT/LINK
LED
SPEED
LED
Off No Link Off 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
** COM Port (COM2) does not support auto ow control.
** This motherboard supports RS232/422/485 on COM1, 2 ports. Please refer to below table for
the pin denition. In addition, COM1, 2 ports (RS232/422/485) can be adjusted in BIOS setup
utility > Advanced Screen > Super IO Conguration. You may refer to page 30 for details.
PINRS232RS422RS485
1DCD, Data Carrier DetectTX-RTX2RXD, Receive DataRX+N/A
3TXD, Transmit DataTX+RTX+
4DTR, Data Terminal ReadyRX-N/A
5GNDGNDGND
6DSR, Data Set ReadyN/AN/A
7RTS, Request To SendN/AN/A
8CTS, Clear To SendN/AN/A
9No Power/5V/12VN/AN/A
COM1, 2 Port Pin Denition
LAN Port
10
Page 11
Chapter 2: Installation
This is a Micro ATX form factor (9.6” x 9.6”, 24.4 x 24.4 cm) motherboard. Before
you install the motherboard, study the conguration of your chassis to ensure that
the motherboard ts into it.
motherboard. Failure to do so may cause physical injuries to you and
damages to motherboard components.
Make sure to unplug the power cord before installing or removing the
2.1 Screw Holes
Place screws into the holes to secure the motherboard to the chassis.
Do not over-tighten the screws! Doing so may damage the motherboard.
2.2 Pre-installation Precautions
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any component.
2. To avoid damaging the motherboard components due to static electricity,
NEVER place your motherboard directly on the carpet or the like. Also
remember to use a grounded wrist strap or touch a safety grounded object
before you handle components.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded antistatic pad or
in the bag that comes with the component.
Before you install or remove any component, ensure that the power 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,
and/or components.
11
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2.3 Installation of Memory Modules (DIMM)
This motherboard provides two 240-pin DDR3 (Double Data Rate 3) DIMM
slots, and supports Dual Channel Memory Technology.
1. For dual channel conguration, you always need to install identical
(the same brand, speed, size and chip-type) DDR3 DIMM pairs.
2. It is unable to activate Dual Channe l Memory Technology with
only one memory module installed.
3. It is not allowed to install a DD R or DDR2 memory module into a
DDR3 slot; other wise, this mother board and DIMM may be dam-
aged.
4. The DIMM only ts in one correct orientation. It will cause perma-
nent damage to the motherboard and the DIMM if you force the
DIMM into the slot at incorrect orientation.
12
Page 13
1
2
3
13
Page 14
2.4 Expansion Slots (PCI and PCI Express Slots)
There are 2 PCI slots and 2 PCI Express slots on this motherboard.
PCI slots: PCI slots are used to install expansion cards that have the 32-bit PCI
interface.
PCIE slots: PCIE1 (PCIE x16 slot; Blue) is used for PCI Express x16 lane width
graphics cards.
PCIE2 (PCIE x4 slot; White) is used for PCI Express x4 lane width
graphics cards.
Installing an expansion card
Step 1. Before installing the expansion card, please make sure that the power
supply is switched off or the power cord is unplugged. Please read the
documentation of the expansion card and make necessary hardware
settings for the card before you start the installation.
Step 2. Remove the system unit cover (if your motherboard is already installed
in a chassis).
Step 3. Remove the bracket facing the slot that you intend to use. Keep the
screws for later use.
Step 4. Align the card connector with the slot and press rmly until the card is
completely seated on the slot.
Step 5. Fasten the card to the chassis with screws.
Step 6. Replace the system cover.
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Page 15
2.5 Jumpers Setup
The i llu strat ion shows how ju mpers are
setup. When the jumper cap is placed on
pins, the jumper is “Short”. If no jumper cap
is placed on pins, the jumper is “Open”. The
illustra ti on shows a 3-p in jumper whose
pin1 and pin2 are “Short” when jumper cap
is placed on these 2 pins.
Jumper Setting Description
Clear CMOS Jumper
(3-pin CLRCMOS1)
(see p.8, No. 27)
Note: CLRCMOS1 allows you to clear the data in CMOS. To clear and reset the
system parameters to default setup, please turn off the computer and unplug
the power cord from the power supply. After waiting for 15 seconds, use a
jumper cap to short pin2 and pin3 on CLRCMOS1 for 5 seconds. However,
please do not clear the CMOS right after you update the BIOS. If you need
to clear the CMOS when you just nish updating the BIOS, you must boot up
the system rst, and then shut it down before you do the clear-CMOS action.
Please be noted that the password, date, time, user default prole and MAC
address will be cleared only if the CMOS battery is removed.
Clear CMOSDefault
AT/ATX Mode
(3-pin PWR_JP1)
(see p.8, No. 14)
Selection 1-2 : AT Mode
2-3 : ATX Mode
Digital Input / Output Power Selection 1-2 : +12V
(3-pin JGPIO_PWR1)
(see p.8, No. 12)
Digital Input / Output
(3-pin JGPIO_SET1)
(see p.8, No. 13)
Default Value Setting
1-2 : +5V
2-3 : +5V
2-3 : GND
15
Page 16
2.6 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place
jumper caps over these headers and connectors. Placing jumper caps
over the headers and connectors will cause permanent damage of the
motherboard!
CPU Fan Connectors Please connect the CPU fan
(4-pin CPU_FAN1)
(see p.8 No. 3)
cable to the connector and
match the black wire to the
FAN_ SPE ED _CO NTR OL
CPU _FA N_S PEE D
+12 V
GND
ground pin.
Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin
CPU fan still can work successfully even without the fan speed control function.
If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this
motherboard, please connect it to Pin 1-3.
Pin 1-3 Connected
3-Pin Fan Installation
(3-pin CPU_FAN2)
(see p.8 No. 2)
GND
+12 V
CPU _FAN _S PEE D
Chassis Fan Connectors Please connect the fan cable
(4-pin CHA_FAN1)
(see p.8, No. 28)
to the fan connector and
match the black wire to the
ground pin.
(3-pin CHA_FAN2)
(see p.8, No. 29)
ATX Power Input Connector Please connect an ATX power
(24-pin ATXPWR1)
(see p.8 No. 5)
supply to this connector.
12 124
13
Though this motherboard provides 24-pin ATX power connector,
it can still work if you adopt a traditional 20-pin ATX power supply.
To use the 20-pin ATX power supply, please plug your power
supply along with Pin 1 and Pin 13.
20-Pin ATX Power Supply Installation
16
12
1
24
13
Page 17
RS-232 Port 4 Pin Headers
PLE D+
(9-pin COM5: see p.8, No. 7)
(9-pin COM6: see p.8, No. 8)
(9-pin COM4: see p.8, No. 9)
(9-pin COM3: see p.8, No. 10)
1
DDC D#1
TTX D1
GND
RRT S#1
COM PW R
RRX D1
DDT R#1
DDS R#1
CCT S#1
Digital Input / Output Pin Header
(10-pin JGPIO1)
(see p.8, No. 11)
PIN Signal Name PIN Signal Name
1SIO_242SIO_20
3SIO_254SIO_21
5SIO_266SIO_22
7SIO_278SIO_23
9 JGPIO_PWR1 10GND
System Panel Header This header accommodates
(9-pin PANEL1)
(see p.8, No. 16)
several system front panel
functions.
1
PLE D-
HDL ED-
HDL ED+
PWR BTN #
GND
RES ET#
GND
GND
Connect the power switch, reset switch and system status indicator on the
chassis to this header according to the pin assignments below. Note the
positive and negative pins before connecting the cables.
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may congure
the way to turn off your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset
switch to restart the computer if the computer freezes and fails to perform a
normal restart.
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. The LED
is on when the system is operating. The LED keeps blinking when the sys-
tem is in S1/S3 sleep state. The LED is off when the system is in S4 sleep
state or powered off (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. The LED
is on when the hard drive is reading or writing data.
17
Page 18
The front panel design may differ by chassis. A front panel module mainly
PWR
consists of power switch, reset switch, power LED, hard drive activity LED,
speaker and etc. When connecting your chassis front panel module to this
header, make sure the wire assignments and the pin assign-ments are
matched correctly.
SATA2 Connectors These two Serial ATA2 (SATA2)
(SATA_5: see p.8, No. 17)
(SATA_6: see p.8, No. 18)
connectors support SATA data
cables for internal storage
SATA_5
SATA_6
devices. The current SATA2
interface allows up to 3.0 Gb/s
data transfer rate.
SATA3 Connectors These two Serial ATA3 (SATA3)
(SATA_1: see p.8, No. 20)
(SATA_2: see p.8, No. 19)
connectors support SATA data
cables for internal storage
devices. The current SATA3
SATA_1
SATA_2
interface allows up to 6.0 Gb/s
data transfer rate.
USB 2.0 Headers Besides four USB 2.0 ports on
(9-pin USB8_9: see p.8, No. 23)
(9-pin USB10_11: see p.8, No. 22)
the I/O panel, there are two
headers on this motherboard.
Each USB 2.0 header can
support two ports.
+
GND
NC
1
PWR
GND
+
-
Chassis Intrusion Headers This motherboard supports
(2-pin CI1: see p.8, No. 24)
(2-pin CI2: see p.8, No. 25)
CASE OPEN detection feature
that detects if the chassis cover
has been removed. This feature
requires a chassis with chassis
intrusion detection design.
18
Page 19
Front Panel Audio Header This is an interface for front
(9-pin HD_AUDIO1)
(see p.8 No. 26)
panel audio cable that allows
convenient connection and
control of audio devices.
ATX 12V Power Input Connector Please connect an ATX 12V
(8-pin ATX12V1)
(see p.8, No. 1)
power supply to this connector.
8 5
4 1
Though this motherboard provides 8-pin ATX 12V power connector, it can still work
if you adopt a traditional 4-pin ATX 12V power supply. To use the
8 5
4-pin ATX power supply, please plug your power supply along
with Pin 1 and Pin 5.
4-Pin ATX 12V Power Supply Installation
TPM Header This connector supports a
(19-pin TPM1)
see p.8, No. 15)
(
Trusted Platform Module (TPM)
system, which can
securely store keys, digital
certicates, passwords, and
data. A TPM system also helps
enhance network security,
protects digital identities, and
48M Hz
GND
SER IRQ #
S_P WRD WN #
GND
LAD 1
LAD 2
SMB _DA TA _ MA IN
SMB _CL K_ M AI N
GND
ensures platform integrity.
Print Port Header This is an interface for print
(25-pin LPT1)
(see p.8, No. 21)
port cable that allows
convenient connection of printer
AFD#
ERRO R#
PINI T#
SLIN #
1
devices.
SPD3
SPD2
SPD1
SPD0
STB#
SPD4
SPD5
SPD6
GND
1
SPD7
+5V
GND
+3V SB
LAD 0
+3V
LAD 3
PCI RST #
FRA ME
PCI CLK
ACK#
BUSY
PE
SLCT
4 1
PWR LOSS Header
(2-pin PWR_LOSS1)
(see p.8, No. 6)
+5V SB_ ATX
19
Short : Power Loss
Open : no Power Loss
Page 20
2.7 Driver Installation Guide
To install the drivers to your system, please insert the support CD to your optical
drive rst. Then, the drivers compatible to your system can be auto-detected and
listed on the support CD driver page. Please follow the order from top to bottom to
install those required drivers. Therefore, the drivers you install can work properly.
20
Page 21
Chapter 3: UEFI SETUP UTILITY
3.1 Introduction
This section explains how to use the UEFI SETUP UTILITY to congure your
system. The UEFI chip on the motherboard stores the UEFI SETUP UTILITY. You
may run the UEFI SETUP UTILITY when you start up the computer. Please press
<F2> or <Del> during the Power-On-Self-Test (POST) to enter the UEFI SETUP
UTILITY, otherwise, POST will continue with its test routines.
If you wish to enter the UEFI SETUP UTILITY after POST, restart the system by
pressing <Ctl> + <Alt> + <Delete>, or by pressing the reset button on the system
chassis. You may also restart by turning the system off and then back on.
Because the UEFI software is constantly being updated, the
following UEFI setup screens and descriptions are for reference
purpose only, and they may not exactly match what you see on
your screen.
3.1.1 UEFI Menu Bar
The top of the screen has a menu bar with the following selections:
Main To set up the system time/date information
Advanced To set up the advanced UEFI features
H/W Monitor To display current hardware status
Boot To set up the default system device to locate and load the
Operating System
Security To set up the security features
Exit To exit the current screen or the UEFI SETUP UTILITY
Use < > key or < > key to choose among the selections on the menu
bar, and then press <Enter> to get into the sub screen. You can also use the
mouse to click your required item.
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3.1.2 Navigation Keys
Please check the following table for the function description of each navigation
key.
Navigation Key(s) Function Description
/ Moves cursor left or right to select Screens
/ Moves cursor up or down to select items
+ / - To change option for the selected items
<Enter> To bring up the selected screen
<F1> To display the General Help Screen
<F7> Discard changes
<F9> To load optimal default values for all the settings
<F10> To save changes and exit the UEFI SETUP UTILITY
<F12> Print screen
<ESC> To jump to the Exit Screen or exit the current screen
3.2 Main Screen
When you enter the UEFI SETUP UTILITY, the Main screen will appear and display
the system overview.
22
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3.3 Advanced Screen
In this section, you may set the congurations for the following items: CPU Congu-