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P4M
ST-
890
17
JC MO S1: Cle ar C MOS Heade r
By placing the jumper on pin2-3, it allows user to restore the BIOS saf e setting
and the CMOS data, please carefully f ollow the procedures to avoid damaging
the motherboard.
1
3
Pin 1-2 Close:
Normal Operation (default).
1
3
1
3
Pin 2-3 Close:
Clear CMOS data.
※
Clear C MOS Proce dures:
1.
Remov e AC power line.
2.
Set the jumper to “Pin 2-3 close”.
3.
Wait f or f ive seconds.
4.
Set the jumper to “Pin 1-2 close”.
5.
Power on the AC.
6.
Reset y our desired password or clear the CMOS data.
JSATA1~JSATA2: Se rial ATA Connectors
The motherboard has a PCI to SATA Controller with 2 channels SATA interf ace,
it satisfies the SATA 1.0 spec and with transfer rate of 1.5Gb/s.
Pin
Assignment
1 Ground
2 T X+
3 T X-
4 Ground
5 RX-
6 RX+
1
4
7
JSATA1
JSATA2
1
4
7
7 Ground