Gigabyte GA-H81M-HD3 User Manual - Page 17

14) 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. 9 1 10 2 DEBUG PORT Pin No. 1 2 3 4 5 Definition NDCDNSIN NSOUT NDTRGND Pin No. 6 7 8 9 10 Definition NDSRNRTSNCTSNRINo Pin 15) LPT (Parallel Port Header) The LPT header can provide one parallel port via an optional LPT port cable. For purchasing the optional LPT port cable, please contact the local dealer. Pin No. Definition Pin No. Definition Pin No. Definition 1 STB- 10 GND 19 ACK- 25 1 2 AFD- 11 PD4 20 GND 3 PD0 12 GND 21 BUSY 26 2 4 ERR- 13 PD5 22 GND 5 PD1 14 GND 23 PE 6 INIT- 15 PD6 24 No Pin 7 PD2 16 GND 25 SLCT 8 SLIN- 17 PD7 26 GND 9 PD3 18 GND 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. 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 system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS configurations). - 17 -