User Manual

20) BAT (Battery)
 Thebatteryprovidespowertokeepthevalues(suchasBIOScongurations,date,andtimeinformation)
in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low
level, or the CMOS values may not be accurate or may be lost.
You may clear the CMOS values by removing the battery:
1. Turn off your computer and unplug the power cord.
2. Gently remove the battery from the battery holder and wait for one minute. (Or use
a metal object like a screwdriver to touch the positive and negative terminals of the
battery holder, making them short for 5 seconds.)
3. Replace the battery.
4. Plug in the power cord and restart your computer.
• Always turn off your computer and unplug the power cord before replacing the battery.
• Replacethebatterywithanequivalentone.Damagetoyourdevicesmayoccurifthebattery
is replaced with an incorrect model.
• Contact the place of purchase or local dealer if you are not able to replace the battery by yourself
or uncertain about the battery model.
• Wheninstallingthebattery,notetheorientationofthepositiveside(+)andthenegativeside(-)
of the battery (the positive side should face up).
• Used batteries must be handled in accordance with local environmental regulations.
21) CLR_CMOS (Clear CMOS Jumper)
 UsethisjumpertocleartheBIOScongurationandresettheCMOSvaluestofactorydefaults.Toclear
the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.
• Always turn off your computer and unplug the power cord from the power outlet before clearing
the CMOS values.
• Aftersystemrestart,gotoBIOSSetuptoloadfactorydefaults(selectLoadOptimizedDefaults)or
manuallyconguretheBIOSsettings(refertoChapter2,"BIOSSetup,"forBIOScongurations).
Open: Normal
Short: Clear CMOS Values
22) CPU/DRAM/VGA/BOOT (Status LEDs)
 Thestatus LEDsshow whetherthe CPU, memory, graphicscard, andoperating systemare working
properlyaftersystempower-on.IftheCPU/DRAM/VGALEDison,thatmeansthecorrespondingdevice
isnotworkingnormally;iftheBOOTLEDison,thatmeansyouhaven'tenteredtheoperatingsystemyet.
CPU: CPUstatusLED
DRAM: MemorystatusLED
VGA: GraphicscardstatusLED
BOOT: OperatingsystemstatusLED
F_USB30
F_U
B_ 
F_  F_ 

_
B
BS_
B
SB_
B
_S

S_
_
B
_U
_
B


 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3
BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
B_
F
_0
S
S
_0F
_F
_
_
__B


U
S  _S
_
SF_
B 
USB0_B
B_
F_USB3

F_USB303

_

_3U
S_
CPU DRAM
VGA BOOT
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