Sun Fire V215 and V245 Servers Service Manual

This appendix describes DIMM and PCI configuration guidelines for the Sun Fire V215 and V245 Servers.

The following topics are covered:

• Section A.1, DIMM Guidelines
• Section A.2, PCI-E and PCI-X Card Guidelines

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A.1 DIMM Guidelines

Memory is shipped in matched pairs. Use the DIMM guidelines, FIGURE A-1, and TABLE A-1 to plan the memory configuration of your server.

• There are 8 slots that hold industry-standard DDR 333 memory DIMMs.
• Sun Fire V215 and V245 servers accept the following DIMM sizes:
• 512 MB
• 1 GB
• 2 GB

• A minimum of two matched DIMMs are required for the server. The matched DIMMs must be the same size, manufacturer, and part number.
• DIMMs must be installed in identical pairs. Both size and manufacturer must be the same per pair.
• If you add a second pair of DIMMs, the second pair does not need to match the first pair in manufacturer or size.

DIMM pairs that have identical attributes, but different manufacturers, might cause OpenBoot PROM to issue the following warning message to the console:

ERROR: /memory: CPU1 Bank 0 DIMMs are from diff vendors

This condition will disable autoboot. However, the DIMMs will still be used. If you encounter this error message, you can boot the server manually.

FIGURE A-1 DIMM Layout

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A.2 PCI-E and PCI-X Card Guidelines

The PCI expansion system is configured using a variety of riser cards. With the release of new optional riser cards in October 2007, the guidelines have been updated.

The following guidelines now apply for the Sun Fire V215 server:

The following guidelines now apply for the Sun Fire V245 server:

You can add only one riser card to the server. If you add the XVR-2500 graphics adapter, you must use the PCI-E riser card assembly that converts all of the PCI-X I/O slots to PCI-E slots. After installation, the I/O subsystem will be entirely PCI-E based (that is, no PCI-X slots will be available). The XVR-2500 graphics adapter and any PCI-X adapter, including the serial, asynchronous adapter (SAI/P), are mutually exclusive within the same system.

^{1 (TableFootnote) Low-profile cards fit with appropriate full-height faceplate.}

^{2 (TableFootnote) If you add a 1U or 2U PCI-E riser card, you must remove the PCI-X riser card. The removal results in the loss of available slots for
PCI-X option cards.}

^{3 (TableFootnote) 1UEER is factory installed in all systems.}

^{4 (TableFootnote) Low-profile cards fit with appropriate full-height faceplate.}

^{5 (TableFootnote) If you add a 1U or 2U PCI-E riser card, you must remove the PCI-X riser card. The removal results in the loss of available slots for
PCI-X option cards.}

^{6 (TableFootnote) 2UEER is factory installed in all systems.}

Sun Fire V215 and V245 Servers Service Manual

819-3038-11

Copyright © 2008, Sun Microsystems, Inc. All Rights Reserved.