Technical data

82
Cable Connectors
The following table shows the cable connectors from the power supply that connect to the riser card
and to the devices in the system.
Connector
Device SCSI ID
P1 Riser Card (Main Power)
P2 System disk drive 0
P3 Add-on disk drive 1
P4 Add-on disk drive 2
P5 Add-on disk drive 3
P6 CD-ROM drive 4
P7 Tape drive/Other drive 5
P8 Not used
P9 Floppy disk or combo drive
P10 System key switch (MCBL166A)
P1 Pinout
Pin Signal Wire Color Pin Signal Wire Color
1 +3.3V Orange 13 +5V Red
2 +3.3V Orange 14 Ground Black
3 +3.3V Orange 15 Ground Black
4 Ground Black 16 +5V Red
5 Ground Black 17 Ground Black
6 Ground Black 18 -12V Blue
7 +3.3V Orange 19 +5V Red
8 +3.3V Orange 20 -5V Red
9 +5V Red 21 Ground Black
10 Ground Black 22 +12V Yellow
11 +5V Red 23 Ground Black
12 Ground Black 24 Power
Good
Green