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MegaRUM PCI Motherboard User’s Guide16
Step 9 Attach Cables
Connectors The MegaRUM PCI motherboard includes many connectors. Connection
instructions, illustrations of connectors, and pinouts are supplied in the
following pages. A list of all connectors described in this section follows:
Connector
Power supply connectors P1, P2, P3, and P4
Drain CMOS RAM power – J35
Keyboard connector J12
PS/2 mouse connector J2
Chassis intrusion LED – J29
External SMI connector – J18
Disable onboard VGA – J14
Hardware reset switch J28
Speaker J46
SCSI activity LED – J40
Keyboard lock connector J41
Turbo LED connector J33
IDE LED connector J38
USB port 1 connector J19
USB port 2 connector J20
System override – J47
AMI-specific VGA cable – J16
Disable VGA interrupt – J13
Serial port 1 connector J9
Serial port 2 connector J8
Parallel port connector J3
Floppy connector J4
IDE channel 0 connector J10
IDE channel 1 connector J11
SCSI channel 1 (Wide) – J44
SCSI channel 1 (Narrow) – J36
SCSI channel 2 (Wide) – J45
SCSI channel 2 (Narrow) – J37
Cont’d