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14) COM (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.
10
9
2
1
15) TPM (Trusted Platform Module Header)
You may connect a TPM (Trusted Platform Module) to this header.
12
11
2
1
16) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the BIOS configuration 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 before clearing the CMOS values.
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or
manually configure the BIOS settings (please navigate to the "BIOS Setup" page of GIGABYTE's
website for more information)..
Pin No. Definition
1
NDCD-
2
NSIN
3
NSOUT
4
NDTR-
5
GND
Pin No. Definition
1
LAD0
2
VCC3
3
LAD1
4
No Pin
5
LAD2
6
LCLK
Open: Normal
Short: Clear CMOS Values
Pin No. Definition
6
NDSR-
7
NRTS-
8
NCTS-
9
NRI-
10
No Pin
Pin No. Definition
7
LAD3
8
GND
9
LFRAME
10
NC
11
SERIRQ
12
LRESET
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