Gigabyte GA-P55A-UD3 Manuel d'utilisateur télécharger pdf (Page 30)

Hardware Installation - 30 -

18) COMA (Serial Port Header)

The COM 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).

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Gigabyte GA-P55A-UD3 Manuel d'utilisateur Page 30