Gigabyte GA-Z87X-UD5 TH

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Hardware Installation

17) COMA (Serial Port Header)

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

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

18) CLR_CMOS (Clear CMOS Jumper)

 UsethisjumpertocleartheBIOScongurationsandresettheCMOSvaluestofactorydefaults.Toclear

the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.

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

the CMOS values.

• 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).

Open: Normal

Short: Clear CMOS Values

Gigabyte GA-Z87X-UD5 TH - Page 34