PTM900 Mainboard Manual
2-2
1.) Set System Jumpers
Jumpers are used to select the operation modes for your system. Some
jumpers on the board have three metal pins with each pin representing a
different function. A 1 is written besides pin 1 on jumpers with three pins. To
set a jumper, a black cap containing metal contacts is placed over the
jumper pin(s) according to the required configuration. A jumper is said to be
shorted
when the black cap has been placed on one or two of its pins.
Clear CMOS
The CMOS RAM is powered by the onboard button cell battery.
To clear the RTC data:
(1)
Turn off your computer;
(2)
Open the system case and disconnect the ATX power cable;
(3) Place the jumper cap onto the pinpair 2-3 for at least 6 seconds
to enable CMOS clearance;
(4) Place the jumper cap onto the pinpair 1-2 to disable the effect of
CMOS
clearance;
(5) Connect the ATX power cable and close the system case;
(6) Turn on your computer until CMOS checksum error appears;
(7) Hold down the Delete key as it boots;
(8) Enter the BIOS Setup to re-enter user preferences.
1 2 3
1 2 3
Normal
(Default)
Enable
(Clear CMOS)
NOTE: Users are not encouraged to change the jumper settings
that is not listed in this manual. Changing the jumper settings
improperly may adversely affect system performance.
Summary of Contents for PTM900
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Page 32: ...PTM900 Mainboard Manual 3 6 Integrated Peripherals VIA OnChip IDE Device ...
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