IRQ Assignments: Dell™ OptiPlex™ GX1p
1
IRQ3 is available provided that no other device in the computer (such as a modem) is using COM2 or COM4.
2
If an ISA expansion card is configured for IRQ11, the NIC or PCI IRQ is assigned to another available IRQ line.
IRQ Line
System Resource
IRQ0
System timer
IRQ1
Keyboard port
IRQ2
Enables IRQ8 through IRQ15
IRQ3
1
Available
IRQ4
Serial port
IRQ5
Audio controller
IRQ6
Diskette/tape drive controller
IRQ7
Parallel port
IRQ8
RTC
IRQ9
Available, except in ACP-enabled configurations while running Windows 98
IRQ10
Available
IRQ11
2
NIC/default PCI IRQ
IRQ12
Mouse port
IRQ13
Math coprocessor
IRQ14
Primary EIDE channel
IRQ15
Secondary EIDE channel
Summary of Contents for OptiPlex GX1p
Page 4: ...Bus mastering Dell OptiPlex GX1p This system supports PCI bus mastering on all slots ...
Page 10: ......
Page 14: ...Internal View of the Low Profile Computer Dell OptiPlex GX1p ...
Page 15: ...Internal View of the Midsize Computer Dell OptiPlex GX1p ...
Page 16: ...Internal View of the Mini Tower Computer Dell OptiPlex GX1p ...
Page 17: ...System Board Dell OptiPlex GX1p ...
Page 19: ...I O Ports and Connectors Dell OptiPlex GX1p ...
Page 28: ...PCI to PCI Bridging OptiPlex GX1p PCI to PCI bridging is supported in this system ...
Page 30: ...DC Power Distribution Mini Tower Chassis ...
Page 32: ......
Page 35: ...Riser Board for the Low Profile Computer Dell OptiPlex GX1p ...
Page 36: ...Riser Board for the Midsize Computer Option 1 Dell OptiPlex GX1p ...
Page 37: ...Riser Board for the Mini Tower Computer Dell OptiPlex GX1p ...
Page 38: ...Riser Board for the Midsize Computer Option 2 Dell OptiPlex GX1p ...
Page 99: ...System Board Dell OptiPlex GX1p The GX1p system board supports a 500 MHz microprocessor ...
Page 100: ...System Boards Dell OptiPlex GX1p First revision system board ...
Page 101: ...System Board Dell OptiPlex GX1 Systems Second revision system board ...
Page 102: ...test ...
Page 103: ...test ...