User's Guide

5-22
Upgrades and Options
Table 5-1. Option Board Hardware Configurations
OPTION BOARD IRQ
3
MEMORY
ADDRESS
I/O
ADDRESS
OPTION
SLOT
SMC 8432BTA (1st)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J9
SMC 8432BTA (2nd)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J10
SMC 9332BDT (1st)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J9
SMC 9332BDT (2nd)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J10
SMC 9432TX (1st)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J9
SMC 9432TX (2nd)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J10
3COM 3c905B (1st)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J9
3COM 3c905B (2nd)
4
Set by BIOS Set by BIOS Set by BIOS PCI Slot J10
Adaptec 2940UW
1
Set by BIOS Set by BIOS Set by BIOS PCI Slot J11
5
Mylex DAC960PDU Set by BIOS Set by BIOS Set by BIOS PCI Slot J11
Onboard 7880 SCSI Set by BIOS Set by BIOS Set by BIOS N/A
2
Onboard 7860 SCSI Set by BIOS Set by BIOS Set by BIOS N/A
2
1. When more than 1 SCSI controller is plugged in, use IRQ 14 for secondary controller (non-booting
controller).
2. For disk controllers plugged into slots and the onboard disk controllers, the sequence for BIOS
scanning to determine the primary (Boot) disk controller is:
ISA slots J3 through J6
PCI slot J11
Onboard 7880 SCSI
PCI slots J10
Onboard 7860 SCSI
PCI slot J9.
It is recommended that the BIOS be disabled on all SCSI controllers except for the controller with the
boot disk drive attached (see
SCSISelect Utilities
in the
Configuring Your System
chapter). This saves
memory address resources and provides control over the boot device independent of board slot
locations.
3. Additional IRQ’s can be made available as follows:
Disabling Comm Port 1 = IRQ4 is available
Disabling Comm Port 2 = IRQ3 is available
Disabling Parallel Port = IRQ7 is available.
4. A maximum of three LAN channels consisting of any combination of single or dual channel. Install
ISA LAN card in the first available ISA slot from the bottom. Install PCI LAN card in the first available
PCI slot from the top.
5. A maximum of three SCSI controllers may be installed. Install the first controller card in the top PCI
slot, the second controller in the second from the top PCI slot and the third controller in the third PCI
slot from the top.