8
(3) CMOS RAM Clear (3-pin) : JP5
A battery must be used to retain the motherboard configuration in CMOS RAM short
1-2 pins of JP5 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 JP5 and short pins 2-3 for a few seconds
4.
Return JP5 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
CMOS RAM Clear Setting
2-3 closed Clear CMOS
JP5
1
3
JP5
1
3
1-2 closed Normal (Default)
2-3 Install CPU
2-3-1 Glossary
Chipset (or core logic) - two or more integrated circuits which control the interfaces
between the system processor, RAM, I/O devises, and adapter cards.
Processor slot/socket - the slot or 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 - Accelerated Graphics Port - a high speed interface for video cards; runs at 1X
(66MHz), 2X (133MHz), or 4X (266MHz), or 8X (533MHz).
PCI - Peripheral Component Interconnect - a high speed interface for video cards, sound
cards, network interface cards, and modems; runs at 33MHz.
ISA - Industry Standard Architecture - a relatively low speed interface primarily used for
sound cards and modems; runs at approx. 8MHz.
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 - Universal Serial Bus - 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.
LAN (interface) - Local Area Network - the interface to your local area network.
BIOS (Basic Input/Output System) - the program logic used to boot up a computer and
establish the relationship between the various components.
