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4 PCI Riser Board
4.1 Introduction
A PCI riser board is used in the SRMK2 Internet Server system to facilitate the addition of two
PCI add-in boards into the 1u chassis. It provides two PCI-compatible connectors mounted in
opposite directions parallel to the serverboard. The pinout of the connectors is exactly the same
as a standard PCI compatible connector.
4.2 Riser Board PCI Bus Connectors
The riser card provides two 64-bit/66MHz PCI bus connectors. See Table 34 for reference to the
pinout and signal names on the 64/66 riser connector (J15).
4.3 PCI Add-in Cards
The PCI riser board allows for one full length and one low profile PCI card to be added to the
system. These cards must be either +3.3V or Universal power cards. +5V add-in cards are
not supported on this system. A list of supported and tested add-in cards for the SRMK2
system can be found at support.intel.com.
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!
NOTE
With the SRMK2's extensive on-board hardware, approximately half of the 128k Boot ROM
space on the system has been used, leaving about 60k free. Add-in cards which use >60k
of Boot ROM space or add-in card combinations that use >60k of Boot ROM space will
report an error message during BIOS POST (see below). Generally this error is seen with
SCSI card adapters. You will see an error message at bootup similar to the following if you
have exceeded the Boot ROM space limit:
Error:
0146: PCI Bus Number:00,Device:07,Function:0 Insufficient Memory to shadow PCI ROM
You can free up Boot ROM space by either disabling the on-board Adaptec 7899 SCSI Boot
ROM or by disabling the Boot ROM on the add-in card. Doing so will, of course, disable
your ability to boot from either the on-board Adaptec SCSI controller or the add-in card
depending on which you disable. You will still be able to see and use the drives on the
Adaptec device if you disable the on-board Boot ROM and you will be able to see and use
the add-in card drives if you disable its Boot ROM.
To disable the on-board Adaptec 7899 SCSI controller Boot ROM follow these procedures:
1) Hit Ctrl-A when prompted at bootup to enter the Adaptec 7899 BIOS. (Note: Closely
observe which controller card is being listed on the screen since having multiple SCSI cards in
the system will give you multiple prompts for SCSI setup.)
2) After entering the SCSI Select setup, you will be prompted with a choice of
Bus:Device:Channel for either Channel A or B. Choose either one and press <Enter>.
3) At the next screen you will have two options. Choose the option entitled "Configure/View
Host Adapter Settings" and press <Enter>.
Intel ® SRMK2 Internet Server Technical Product Specification
54
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