Owner's Manual

Hardware Installation - 30 -

18) COMA (Serial Port Header, White)

The COMA header can provide one serial port via an optional COM port cable. For purchasing the op-

tional COM port cable, please contact the local dealer.

PinNo. Denition

1 NDCD-

2 NSIN

3 NSOUT

4 NDTR-

5 GND

6 NDSR-

7 NRTS-

8 NCTS-

9 NRI-

10 No Pin

19) CLR_CMOS (Clearing CMOS Jumper)

 Usethisjumpertoclear the CMOS values (e.g. date informationandBIOScongurations)andreset

the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the two pins to

temporarily short the two pins or use a metal object like a screwdriver to touch the two pins for a few

seconds.

Open: Normal

Short: Clear CMOS Values

• Always turn off your computer and unplug the power cord from

the power outlet before clearing the CMOS values.

• After clearing the CMOS values and before turning on your

computer, be sure to remove the jumper cap from the jumper.

Failure to do so may cause damage to the motherboard.

• 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).