SOLTEK SL-85LIR User manual

8
85LIR / 85LIR-L
Topics i cluded i this chapter are:
1-1 Mai board Compo e ts Locatio s
1-2 Mai board Specificatio s
1-3 Mai board Specificatio s Table
1-4 Chipset Diagram
I troductio
C apter 1 Specification
This mainboard features an integration of the powerful processor In-
tel Pentium 4 and the single-chip North Bridge Intel 845GL. The Intel
P4 processor is a rapid execution engine providing 400MHz system
bus, while North Bridge Intel 845GL is a high performance integrated
chipset providing processor interface, DDR266/200 SDRAM memory
interface, Hub interface, AGP interface for DVO as well as an integrated
VGA Graphics supported by a RT display connector.
Integrated with i845GL, South Bridge Intel I H4 supports LP Super
I/O, upstream Hub interface, P I interface, IDE interface, LAN interface,
USB interface, A ’97 Audio interface and the interrupt control. This
chapter is to introduce to users every advanced function of this high
performance integration.

9
Chapter 1 Specification
mPGA478B
1
RTL8139C
PCI 1
PCI 2
PCI 3
AC'97
Audio
Li
Battery
BIOS
IT8712F
LPC I O
i845G
(GMCH)
DVO
1
Peripheral Power
LPT1
COM1
VGA
MIC
GAME MIDI PORT
LINE OUT
LINE IN
USB1 (underside)
1
DIMM1
Main Power
IDE2
IDE1
FDC
+12V Power
1
COM2
USB2 USB3
1
10
1
10
1
FAN1
1
FAN2
1
FAN3
1 3
JP3
1
JBAT1
11
JDIMM1 JDIMM2
SMI
HDD LED IRRTX PWR
1
30
SUS LEDKLOCK
SPKR RST
+ -
++--
RT2
CD1
1
1
USB0 (middle)
Rj 45
(on top)
PS 2 K B (underside)
PS 2 Mouse
(on top)
DDR 266 200
Intel RG82845
i845GL
Intel
ICH4
Intel
Jp11
AUX1
1
WOL1
1
DIMM2
1-1 SL-85LIR / 85LIR-L Compo e ts Locatio s
Rj45 co ector
LAN Co troller }for Mai board 85LIR-L o ly
AGP Slot for DVO card o ly
( AGP card will ot boot system.)

10
85LIR / 85LIR-L
1-2 Mai board Specificatio s
1-2.1 CPU Socket
PU Socket 478B on board, supporting Intel® Pentium 4 processors
(including Hyper-threading PUs)) in 478-pin package for :
-- 400MHz System Bus;
-- Hyper-pipelined technology;
-- Advanced dynamic execution;
-- Advanced transfer cache;
1-2.2 System Chipsets
North Bridge Intel 845GL:
• a high performance integrated chipset providing 400MHz System Bus,
DDR266/200 SDRAM memory interface, Hub interface, integrated
VGA interface with a RT display connector
• Supporting FSB533MHz overclocking and HT PUs with HT Logo to
be displayed on Bootup screen
South Bridge Intel I H4:
• supporting LP Super I/O, upstream Hub interface, P I interface,
IDE interface, LAN interface, USB interface, A ’97 Audio interface
and the interrupt control.
1-2.3 Memory
2 DDR DIMM 184-pin slots on board for DDR 266/200 SDRAMs :
• Supporting unregistered, non-E DDR266/200 SDRAM up to 2 GBs
• Supporting installation of mixed volumes yet same type of DDR
SDRAM modules
• No support for double-sided x16 DDR DIMMs
1-2.4 AMI BIOS
• Supporting Plug & Play V1.0
• Flash Memory for easy upgrade
• Supporting BIOS Writing Protection and Year 2000 compliant
• Supporting BIOS Setup (See hapter 4 BIOS Setup)
1-2.5 I tegrated VGA I terface Supported by VGA Co ector
• one 1.5V 15-pin connector on board
• Integrated 2D/3D graphics accelerator
• Hardware motion compensation assist for software MPEG/DVD de-
code
• VGA Driver enclosed in Support D for user’s installation

11
Chapter 1 Specification
1-2.6 Adva ced System Power Ma ageme t:
• A PI 1.0B compliant (Advanced onfiguration and Power Interface)
• APM V1.2 compliant (Legacy Power Management)
• A PI POS (Power On Suspend) ; no support for Suspend To RAM
(STR)
• PS/2 Keyboard & Mouse Power On
• Supporting Wake-on-LAN (ring signal) through WOL1 connector
• Real Time lock (RT ) with date alarm, month alarm, and century
field
1-2.7 Multi-I/O Fu ctio s :
• P I EIDE ontroller, supporting:
-- 2x Ultra ATA100 / 66 / 33 IDE connectors supporting up to 4 IDE
devices
• Dedicated IR Functions:
-- Third serial port dedicated to IR function either through the two
complete serial ports or the third dedicated port Infrared-IrDA (HPSIR)
and ASK (Amplitude Shift Keyed) IR
• Multi-mode parallel data transfer:
-- Standard mode, high speed mode E P and enhanced mode EPP
• Floppy Disk connector:
-- One FDD connector supporting 2 floppy drives with drive swap support
• Universal Serial Bus Transfer Mode:
-- USB V2.0 compliant; 480Mb/s USB Bus, supporting Win 2000 or later
operating system
-- USB drivers provided in Support D for installation
-- 2 built-in USB connectors and 2 USB Headers (USB2, USB3) which
require 2 optional USB cables to provide 4 more optional USB ports
• PS/2 Keyboard and PS/2 Mouse
• UARTs (Universal Asynchronous Receiver / Transmitter):
-- Two complete serial ports ( OM1 & OM2) on board
1-2.8 Expa sio Slots
• 3 P I bus Master slots
• 2 DDR DIMM slots
• 1 AGP slot for DVO card only

12
85LIR / 85LIR-L
1-2.9 LAN (Local Area Network) o board (85LIR-L o ly)
P I local bus single-chip Fast Ethernet ontroller RTL8139 on board:
• Supporting 10/100Mb data transfer
• Supporting Wake On LAN function through the on-board Rj45 LAN
onnector
• LAN ontroller Driver enclosed in Support D for user’s installation
1-2.10 Hardware Mo itor o board
• Hardware Monitor in chip IT8712F, providing monitoring and alarm
for flexible desktop management of hardware voltage, temperatures
and fan speeds.
• HWDoctor utility “Smartguardian”for displaying Monitoring status is
enclosed in Support D for user’s installation.
1-2.11 AC’97 Audio Codec o board
A ’97 Audio odec 2-channel compliant on board
• A ’97 Audio odec Driver in Support D for user’s installation.
1-2.14 Form Factor
• Micro-ATX form factor, ATX power supply, version 2.03 compliant,
supported by one Main Power onnector, one +12V Power onnec-
tor and one Peripheral Power onnector
• Mainboard size: 245mm x 245mm
1-2.12 AGP Slot for Digital Video Out (DVO)
• This series is designed with an AGP Slot which is typically designed
for Digital-Video-Out (DVO) display only. If this option is chosen on
board, user can use a DVO card for digital display but an AGP card
will not work on this series.
• Avance A 97 Audio odec on board, A ’97 2.1 compatible stereo
audio code for P multimedia systems.
1-2.13 533MHz FSB supported by CPU Overclock
• 533MHz Front Side Bus supported by PU overclock with the latest
Mainboard BIOS

13
Chapter 1 Specification
PU
North Bridge
South Bridge
BIOS
Memory
I/O hip
AGP Slot
Audio
IDE Interface
Networking
P I Slots
I/O onnectors
VGA Display
Other Features
Socket 478B for P4 PUs (HT PU included)
Intel 845GL, supporting 400MHz System Bus
Intel I H4
AMI BIOS
Supporting DDR 266/200 SDRM, up to 2GB
in two DDR DIMM slots
IT8712F
1 x AGP slot for DVO only
A ’97 Audio compliant
2 UATA 33/66/100 IDE ports
Fast Ethernet ontroller, 1xRj45 (85LIR-L only)
3 P I Master slots on board
3xUSB ports (V2.0), 1xFDD port, 2x OM ports,
1xLPT, 1xIrDA, 1xPS/2 K/B, 1xPS/2 Mouse,
1 x VGA connector on board for RT VGA display
BIOS Writing Protection;
Hardware Monitoring in IT8712F
keyboard/Mouse Power On;
ATX 2.03 Power Supply;
Micro ATX form factor
SL-85LIR / 85LIR-L Specificatio s a d Features
1-3 Mai board Specificatio Table

14
85LIR / 85LIR-L
1-4 Chipset System Block Diagram
Pe tium 4 + I tel 845GL + I tel ICH4 Diagram
System
Memory
200 SDRAM
ICH4
Intel 845GL
-Memory Controller
PCI Bus
System Bus 400MHz
USB Ports
ATA100 66 33
PCI Slots
Audio Codec
Intel Pentium 4 Processor
AC'97 2.1
LPC I O
-System Bus
DDR
DDR266
USB Bus
Bi-directional 16-bit data bus,
at 266MHz operating frequency
IT8712F
Mouse
Keyboard
Serial Ports
Printer Port BIOS
FDD
HDD
CD-ROM
Memory
Interface
IR
Game MIDI
CRT
Monitor
Rj45 RTL8139C
(for 85LIR-L only)
-VGA Controller
V2.0
H Monitor
DVO AGP Interface
(Optional)
(I cludi g HT CPUs)

16
85LIR / 85LIR-L
C apter 2 Hardware Setup
1. We recommend to install your PU before any other components.
For detailed installation instructions of processor, you can also refer
to the pamphlet enclosed in your PU package.
2. Installing a cooling fan with a good heatsink is a must for proper heat
dissipation for your PU. Get ready an appropriate fan with heatsink
for proper installation. Improper fan and installation will damage your
PU.
3. In case PU Vcore, PU clock or Frequency Ratio is adjustable on
board, please follow the instructions described in the User Manual
for proper setup. Incorrect setting will cause damage to your PU.
The followi g topics are i cluded i this chapter:
To Get thi gs ready for hardware setup !
2-1 Pe tium 4 CPU I stallatio
2-2 Pe tium 4 CPU Fa I stallatio
2-3 Memory I stallatio
2-4 VGA / DVO Display I stallatio
2-5 IDE Co ector I stallatio
2-6 Floppy Drive ( FDC) I stallatio
2-7 ATX 2.03 Power Supply I stallatio
2-8 Jumper Setti gs
2-9 Other Co ectors Co figuratio
2-10 IRQ Descriptio

17
Chapter 2 Hardware Setup
2-1 Pe tium 4 CPU a d I stallatio
2-1.1 To Ide tify a Pe tium 4 CPU
I tel
pe tium 4
2.4 GHz / 512 / 533 / 1.5V
1) CPU Worki g
Freque cy
2) CPU L2 Cache
3) System Clock
4) CPU Voltage Vcore
(I cludi g Hyper-threadi g CPUs)
On the heatsink side of a Pentium 4 PU, there printed a line of figures
to identify its specifications. The line consists of 4 parts:
1. PU Working Frequency: this part depicts the working frequency of
the PU. For example,
2.4 GHz depicts that this PU is locked to 2.4 GHz working frequency
(18 x 133MHz PU clock);
2A GHz depicts that this PU is an A version, locked to 2.0 GHz
working frequency (20 x 100MHz PU clock)
3.06GHz depicts that this is a 3.06GHz hyper-threading PU.
2. PU L2 ache: this part depicts the L2 ache size. For example,
512 stands for 512 KB L2 ache; 256 stands for 256 KB L2 ache
3. System lock: this part depicts the System lock (Front Side Bus)
provided by the PU. For example,
533 stands for a 533MHz system clock provided by a 133MHz PU
times 4;
400 stands for a 400 system clock provided by a 100 MHz PU x 4.
4. PU Voltage Vcore: this part depicts the PU Voltage. For example,
1.5V stands for a PU of 1.5V Vcore.
Note: System lock vs PU lock
P4 PU is a quadpumped PU. The system bus is provided by the
PU clock x 4. Therefore, users can figure out the P4 PU clock by the
System lock divided by 4.

18
85LIR / 85LIR-L
mPGA478B
Pi 1
2-1.2 CPU I stallatio with Socket 478B
This mainboard is built with PU
Socket 478B ( 478-pin) supporting
the Intel Pentium 4 PU:
• Follow the steps described in this
section to install the 478-pin Pen-
tium 4 PU into the on board
Socket 478.
• After installation of Pentium 4 PU,
you must also install the specific
Pentium 4 PU fan designed in
tandem with this PU. This PU
Fan installation is described in next
section.
• This mainboard supports Hyper-
threading dual-in-one PU, the
function of which can be enabled
by Windows XP. (See illustration
on the right.)
1. First pull sideways the lever of
Socket 478, and then turn it up
900 so as to raise the upper layer
of the socket from the lower
platform.
3. Make sure that all PU pins have
completely entered the socket
and then lower down the lever
to lock up PU to socket.
2. onfigure Pin 1 of PU to Pin 1
of the Socket, just as the way
shown in the diagram on the
right. Adjust the position of PU
until you can feel all PU pins
get into the socket with ease.
mPGA478B
Intel Pentium 4
mPGA478B
Intel Pentium 4
Pin 1
Pin 1
( If Hyper-threading PU is
installed successfully with O/S
Win XP, the O/S will enable the
dual-in-one PU function.)

19
Chapter 2 Hardware Setup
2-2 Pe tium 4 CPU Fa I stallatio
onnect Fan onnector to PU FAN connector
Press down 4 corners to lock fan to fanbase
PU Fan onnector Pentium 4 Fanbase

20
85LIR / 85LIR-L
2-3 Memory I stallatio
184-Pi DIMM Notch Key Defi itio s
DRAM Key Positio Voltage Key Positio
Module Latch
• This series only supports up to 2GB unbuffered DDR 266/200 SDRAM,
with 2 DDR DIMM slots on board. Do not insert other type of mod-
ules into these slots.
• DDR DIMM slot has 184-pins and one notch. Insert a DDR SDRAM
vertically into the 184-pin slot with the notch-to-rib matching. Press
the Module down in a gradual way until it surely reaches the bottom
and clicks straight up the two latches on the left and right of the slot.
If any one of the latches has not turned up completely, you should
unplug the module and press it down a bit more firmly.
How to tackle the memory Modules:
• Make sure to unplug your power supply before adding or removing
memory module. Failure to do so may cause severe damage to both
your mainboard and the memory module.
• Pay attention to the orientation of the DIMM slots. Forcing a DIMM
into a slot improperly will damage the memory module and slot itself.
• Make sure you have the right type of memory module for your
mainboard.
2-3.1 To I stall DDR SDRAM Module
DDR Key Notch
DDR Rib

21
Chapter 2 Hardware Setup
mPGA478B
1
RTL8139C
PCI 1
PCI 2
PCI 3
AC'97
Audio
Li
Battery
BIOS
IT8712F
LPC I O
i845G
(GMCH)
DVO
1
Peripheral Power
LPT1
COM1
VGA
MIC
GAME MIDI PORT
LINE OUT
LINE IN
USB1 (underside)
1
DIMM1
Main Power
IDE2
IDE1
FDC
+12V Power
1
COM2
USB2 USB3
1
10
1
10
1
FAN1
1
FAN2
1
FAN3
1 3
JP3
1
JBAT1
11
JDIMM1 JDIMM2
SMI
HDD LED IRRTX PWR
1
30
SUS LEDKLOCK
SPKR RST
+ -
++--
RT2
CD1
1
1
USB0 (middle)
Rj 45
(on top)
PS 2 K B (underside)
PS 2 Mouse
(on top)
DDR 266 200
Intel RG82845
i845GL
Intel
ICH4
Intel
Jp11
AUX1
1
WOL1
1
DIMM2
DDR DIMM Slots
(184-pin)
2-3.2 To Remove a DIMM
To remove a DIMM module from slot, first power off system and then
press down the holding latches on both sides of slot to release the
module from the DIMM slot.

22
85LIR / 85LIR-L
mPGA478B
1
RTL8139C
PCI 1
PCI 2
PCI 3
AC'97
Audio
Li
Battery
BIOS
IT8712F
LPC I O
i845G
(GMCH)
DVO
1
Peripheral Power
LPT1
COM1
VGA
MIC
GAME MIDI PORT
LINE OUT
LINE IN
USB1 (underside)
1
DIMM1
Main Power
IDE2
IDE1
FDC
+12V Power
1
COM2
USB2 USB3
1
10
1
10
1
FAN1
1
FAN2
1
FAN3
1 3
JP3
1
JBAT1
11
JDIMM1 JDIMM2
SMI
HDD LED IRRTX PWR
1
30
SUS LEDKLOCK
SPKR RST
+ -
++--
RT2
CD1
1
1
USB0 (middle)
Rj 45
(on top)
PS 2 K B (underside)
PS 2 Mouse
(on top)
DDR 266 200
Intel RG82845
i845GL
Intel
ICH4
Intel
Jp11
AUX1
1
WOL1
1
DIMM2
2-4 I stall VGA / DVO Display
1. To install on-board VGA, please connect your monitor directly to VGA
connector on board.
2. To install Digital-Video-Out (DVO) display, please insert a DVO card
into the AGP slot which in this board is typically for DVO only. An
AGP card cannot boot this system.
VGA
onnector
I sert a DVO card to AGP slot for DVO display
(A AGP card will ot boot system.)

23
Chapter 2 Hardware Setup
2-5 IDE Co ector I stallatio
To install IDE onnector, you may connect the blue connector of IDE
cable to the primary (IDE1) or secondary (IDE2) connector on board,
and then connect the gray connector to your slave device and the black
connector to your master device. If you install two hard disks, you must
configure the second drive to Slave mode by setting its jumpers correctly.
Please refer to your hard disk documentation for the jumper settings.
Orient the red line on the IDE
Flat able to Pin1.
Pin 1 (to Red Line)
Hard Disk Drive onnector
mPGA478B
1
RTL8139C
PCI 1
PCI 2
PCI 3
AC'97
Audio
Li
Battery
BIOS
IT8712F
LPC I O
i845G
(GMCH)
DVO
1
Peripheral Power
LPT1
COM1
VGA
MIC
GAME MIDI PORT
LINE OUT
LINE IN
USB1 (underside)
1
DIMM1
Main Power
IDE2
IDE1
FDC
+12V Power
1
COM2
USB2 USB3
1
10
1
10
1
FAN1
1
FAN2
1
FAN3
1 3
JP3
1
JBAT1
11
JDIMM1 JDIMM2
SMI
HDD LED IRRTX PWR
1
30
SUS LEDKLOCK
SPKR RST
+ -
++--
RT2
CD1
1
1
USB0 (middle)
Rj 45
(on top)
PS 2 K B (underside)
PS 2 Mouse
(on top)
DDR 266 200
Intel RG82845
i845GL
Intel
ICH4
Intel
Jp11
AUX1
1
WOL1
1
DIMM2
IDE1
IDE2
Gray onnector
Blue onnector
Black onnector
Red Line
IDE Flat Cable (To Mainboard)
(To Slave Device)
(To Master Device)
80-conductor
able

24
85LIR / 85LIR-L
To install FD , you should connect the end of FD cable with single
connector to the board , and connect the other end with two connectors
to the floppy drives.
2-6 Floppy Drive Co ector ( FDC ) I stallatio
FDD Cable
To 1st Floppy Drive
To mainboard
To 2nd Floppy Drive
red line
mPGA478B
1
RTL8139C
PCI 1
PCI 2
PCI 3
AC'97
Audio
Li
Battery
BIOS
IT8712F
LPC I O
i845G
(GMCH)
DVO
1
Peripheral Power
LPT1
COM1
VGA
MIC
GAME MIDI PORT
LINE OUT
LINE IN
USB1 (underside)
1
DIMM1
Main Power
IDE2
IDE1
FDC
+12V Power
1
COM2
USB2 USB3
1
10
1
10
1
FAN1
1
FAN2
1
FAN3
1 3
JP3
1
JBAT1
11
JDIMM1 JDIMM2
SMI
HDD LED IRRTX PWR
1
30
SUS LEDKLOCK
SPKR RST
+ -
++--
RT2
CD1
1
1
USB0 (middle)
Rj 45
(on top)
PS 2 K B (underside)
PS 2 Mouse
(on top)
DDR 266 200
Intel RG82845
i845GL
Intel
ICH4
Intel
Jp11
AUX1
1
WOL1
1
DIMM2
Floppy Drive onnector:
Orient the red line of the
Floppy Flat able to Pin1.
Pin 1 (to Red Line)
FD
Signal Swap
End

25
Chapter 2 Hardware Setup
2-7 ATX V 2.03 Power Supply I stallatio
ATX V2.03 power supply is strongly recommended for mainboard run-
ning with 2GMHz or higher PU.
To set up Power Supply on this mainboard:
1. onnect the on-board Main Power onnector (20-pin) to the Main
Power onnector (20-pin) of an ATX Power Supply which can be
either of the latest version 2.03 or of earlier ATX format.
2. If you use an ATX Power Supply Version 2.03 or later, you can now
connect the on-board square-shaped +12V onnector to the square-
shaped +12V onnector of your ATX Power Supply. In this case, it is
not necessary for you to connect the on-board 4-pin Peripheral Power
onnector to your Power Supply.
3. If you use an ATX power Supply of an older version than V2.03, you
cannot find a square-shaped +12V onnector with your Power Supply;
you must then connect the on-board 4-pin Peripheral Power
onnector to the 4-pin Peripheral Power onnector of your Power
Supply.
+12V Power Co ector
Peripheral
Power onnector
mPGA478B
1
RTL8139C
PCI 1
PCI 2
PCI 3
AC'97
Audio
Li
Battery
BIOS
IT8712F
LPC I O
i845G
(GMCH)
DVO
1
Peripheral Power
LPT1
COM1
VGA
MIC
GAME MIDI PORT
LINE OUT
LINE IN
USB1 (underside)
1
DIMM1
Main Power
IDE2
IDE1
FDC
+12V Power
1
COM2
USB2 USB3
1
10
1
10
1
FAN1
1
FAN2
1
FAN3
1 3
JP3
1
JBAT1
11
JDIMM1 JDIMM2
SMI
HDD LED IRRTX PWR
1
30
SUS LEDKLOCK
SPKR RST
+ -
++--
RT2
CD1
1
1
USB0 (middle)
Rj 45
(on top)
PS 2 K B (underside)
PS 2 Mouse
(on top)
DDR 266 200
Intel RG82845
i845GL
Intel
ICH4
Intel
Jp11
AUX1
1
WOL1
1
DIMM2
12
34
+12V
GND
GND
+12V
GND
GND +5V +12V
14
Main Power onnector
(20-pin)
+12V
5SB
PWR OK
GND
GND
GND
GND
GND
GND
+5V
+5V
-5V
+5V
+5V
+3.3V
+3.3V +3.3V
PS ON#
Pin1 Pin11
-12V
GND

26
85LIR / 85LIR-L
mPGA478B
1
RTL8139C
PCI 1
PCI 2
PCI 3
AC'97
Audio
Li
Battery
BIOS
IT8712F
LPC I O
i845G
(GMCH)
DVO
1
Peripheral Power
LPT1
COM1
VGA
MIC
GAME MIDI PORT
LINE OUT
LINE IN
USB1 (underside)
1
DIMM1
Main Power
IDE2
IDE1
FDC
+12V Power
1
COM2
USB2 USB3
1
10
1
10
1
FAN1
1
FAN2
1
FAN3
1 3
JP3
1
JBAT1
11
JDIMM1 JDIMM2
SMI
HDD LED IRRTX PWR
1
30
SUS LEDKLOCK
SPKR RST + -
++--
RT2
CD1
1
1
USB0 (middle)
Rj 45
(on top)
PS 2 K B (underside)
PS 2 Mouse
(on top)
DDR 266 200
Intel RG82845
i845GL
Intel
ICH4
Intel
Jp11
AUX1
1
WOL1
1
DIMM2
2-8 Jumper Setti gs
The following diagrams show the locations and settings of jumper blocks
on the mainboard.
JBAT1
Clear CMOS
1-2 closed
(default)
To hold data
1
1
2-3 closed
To clear MOS
PS/2 K/B / Mouse Power O
1-2 closed (default)
Disabled
1
1
2-3 closed
Enabled
Jp3:
JDIMM1 & JDIMM2:
DIMM Voltage Select
DIMM
Voltage JDIMM1 JDIMM2
(Default)
2.5V
2.6V
2.7V
1
3
1
3
1
3
1
3
1
3
1
3

27
Chapter 2 Hardware Setup
When you have problem with rebooting your
system, you can clear MOS data and restore
it to default value. To clear MOS with Jumper
JBAT1, please follow the steps below:
1. Power off system;
2. Set JBAT1 to Pin 2-3 closed.
3. After 2 or 3 seconds, return the JBAT1 setting
to Pin1-2 closed.
4. MOS data are restored to default.
Remember never clear MOS when system
power is on.
2-8.2 JBAT1: Clear CMOS
JBAT1
Clear CMOS
1-2 closed
(default)
To hold data
1
1
2-3 closed
To clear MOS
1 13313
Jumper with
Pi 2-3 closed
Jumper with
all pi s ope
Jumper with
Pi 1-2 closed
• A Jumper is usually but not necessarily given a “JpX” legend.
Jp X
• Do not remove any jumper cap when power is on. Always
make sure the power is off before changing any jumper settings.
Otherwise, the mainboard will be damaged.
• In the Jumper setting diagram, the jumper pins covered with
black marks stand for closed pins with jumper cap.
If a pin-header (of 2 or more pins) is
designed in such a way that its pins
can be closed or linked together to
set up a specific function, this header
is called a jumper in this manual.
A 3-pin Jumper
The conductor inside the cap
links two header-pins together.
123 A 2-pin
Jumper
ap
2-8.1 How to tackle the Jumpers

28
85LIR / 85LIR-L
2-8.4 JDIMM1 & JDIMM2: DIMM Voltage Select
War i g: I selecti g a higher
voltage tha the default , you
are riski g the stability of your
system.
Jp3 is designed to select PS/2 keyboard or Mouse to power on system.
Setting Jp3 to 1-2 closed will disable the function. Setting Jp3 to 2-3
closed will allow user to power up system by keyboard or Mouse. Yet
user still has to enter BIOS Setup for choosing the KB/Mouse Power-
on mode. (See Integrated Peripherals” in BIOS Setup.)
2-8.3 Jp3: PS/2 KB/Mouse Power O
JDIMM1 & JDIMM2:
DIMM Voltage Select
DIMM
Voltage JDIMM1 JDIMM2
(Default)
2.5V
2.6V
2.7V
1
3
1
3
1
3
1
3
1
3
1
3
The default voltage 2.7V at DIMM sock-
ets is for the optimum operation of the
supported DDR SDRAM. In some case,
when you are not doing any overclocking,
you may find a lower DIMM voltage would
work better. JDIMM1 & JDIMM2 are de-
signed on board to provide settings for
adjusting the DIMM voltage so as to op-
timize the operation stability.
PS/2 K/B / Mouse Power O
1-2 closed (default)
Disabled
1
1
2-3 closed
Enabled
Jp3: