Mainboard PM945GC
12
Speaker Header: SPEAK
A speaker cable on your case front panel can be attached to this header. When you reboot the computer,
this speaker will issue a short audible (beep). If there are problems during the Power On Self-Test, the
system will issue an irregular pattern of audible beeps through this speaker.
Connectors
Floppy Disk Drive Connector: FLOPPY
These mainboards provide a standard floppy disk drive connector (FDD) that supports 360KB/ 720KB/
1.2MB/ 1.44MB/ 2.88 MB floppy disk drives using a FDD ribbon cable.
Hard Disk Drive Connectors: IDE1
The mainboards provide one IDE connector that supports Ultra ATA 33/66/100 IDE devices. You can
attach a maximum of two IDE devices, such as hard disk drive (HDD), CD-ROM, DVD-ROM, etc. using an
IDE ribbon cable.
In general, two IDE devices can be attached onto one IDE connector. If you attach two IDE HDDs, you
must configure one drive as the master and the other one as the slave. In this case, one optical device i.e.,
CD-ROM, DVD-ROM…etc. should be attached to this connector as well.
SATA II Connector: SATA 1/2/3/4
The four SATA II connectors support 3 Gbps transmit rate, and one SATA connector only can attach one
SATA HDD of each time using SATA cables.
Pin
Assignment
Pin
Assignment
1 SPK
2 N/C
SPEAK
3 Ground
4 VCC5
Attention
The FDD/ IDE cable is designed and should be attached with a specific
direction. One edge of the cable will usually in color such as red, to
indicate that should line up with the header pin-1.
