Gigabyte GA-H310TN-R2 - Page 19

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22) CI (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been removed.
This function requires a chassis with chassis intrusion detection design.
Pin No. Denition
1 Signal
2 GND
23) CLR_CMOS (Clear CMOS Jumper)
 UsethisjumpertocleartheBIOSconguration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
21) COMA/COMB (Serial Port Headers)
Each 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 NDSR-
3 NSIN
4 NRTS-
5 NSOUT
6 NCTS-
7 NDTR-
8 NRI-
9 GND
10 NC
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