6
(3) CMOS RAM Clear (3-pin): JBAT
A battery must be used to retain the motherboard configuration in CMOS RAM short 1-2
pins of JPAT to store the CMOS data.
To clear the CMOS, follow the procedure below:
1.
Turn off the system and unplug the AC power
2.
Remove ATX power cable from ATX power connector
3.
Locate JBAT and short pins 2-3 for a few seconds
4.
Return JBAT to its normal setting by shorting pins 1-2
5.
Connect ATX power cable back to ATX power connector
Note: When should clear CMOS
1.
Troubleshooting
2.
Forget password
3.
After over clocking system boot fail
2-3
Glossary
Chipset (core logic)
-
two or more integrated circuits which control the interfaces between the
system processor, RAM, I/O devises, and adapter cards.
Processor socket
-
the socket used to mount the system processor on the motherboard.
Slot
(AGP, PCI, ISA, RAM) - the slots used to mount adapter cards and system RAM.
AGP
-
A
ccelerated
G
raphics
P
ort - a high speed interface for video cards; runs at 1X (66MHz), 2X
(133MHz), or 4X (266MHz).
PCI
-
P
eripheral
C
omponent
I
nterconnect - a high speed interface for video cards, sound cards,
network interface cards, and modems; runs at 33MHz.
Serial Port
-
a low speed interface typically used for mouse and external modems.
Parallel
Port
-
a low speed interface typically used for printers.
PS/2
-
a low speed interface used for mouse and keyboards.
USB
-
U
niversal
S
erial
B
us - a medium speed interface typically used for mouse, keyboards,
scanners, and some digital cameras.
Sound
(interface) - the interface between the sound card or integrated sound connectors and
speakers, MIC, game controllers, and MIDI sound devices.
BIOS
(
B
asic
I
nput/
O
utput
S
ystem) - the program logic used to boot up a computer and
establish the relationship between the various components.
Driver
- s
oftware, which defines the characteristics of a device for use by another device or other
software.
Processor
- the "Central Processing Unit" (CPU); the principal integrated circuit used for
doing the "computing" in "personal computer"
Front Side Bus Frequency -
The working frequency of the motherboard, which is generated
by the clock generator for CPU, DRAM and PCI BUS.
CMOS RAM Clear Setting
2-3 closed Clear CMOS
JBAT
JBAT
1-2 closed Normal (Default)
1
3
1
3
