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Parts Information

Document ID: DDSE-42DVF3

Netfinity 3000 - System board Removal, Illustration and Replacement

Applicable to: World-Wide

System Board

Attention The presence of 5 V ac standby power might result in damage to the hardware unless you disconnect the power cord from the electrical outlet before you open the server.

Note - Read "Safety Information". - Read the documentation that comes with the option.

To install an adapter, you might have to remove the system board.

To remove the system board:
1. Remove the server side cover (see "Disconnecting Cables and Removing the Side Cover").
2. Position the server as described in "Accessing the System Board".
3. Remove the bottom cover. (See "Bottom Cover".)
4. Lift the system board latch handle upward to disconnect the plastic tab on the bottom of the handle from the chassis.
5. Grasp and turn the latch clockwise to the extended position. This releases the system board from the riser card.

Note Do not pull on the microprocessor, the DIMMs, or the DIMM sockets to remove the system board.

6. Using the tab, slide the system board out and set it aside.

To reinstall the system board:
1. Make sure that the system-board latch handle is in the extended position.
2. Align the system-board rails with the tracks on the chassis and slide the board in until it is approximately 6 mm (0.25 in) from the riser-card edge connector.
3. Rotate the latch handle counterclockwise until the system board is properly aligned with the riser-card edge connector.
4. Continue rotating the latch handle counterclockwise while firmly pushing on the system-board rail on the right-hand side of the system board.

Note Do not push on the microprocessor, the DIMMs, or the DIMM sockets to install the system board.

Make sure that the system board is fully seated in the riser-card edge connector.

5. Push down on the latch to lock the tab on the underside in the opening (hole) in the chassis. This securely holds the latch in the closed position.

Note You cannot see the connection with a full-sized adapter in place. To make sure that the system board is fully seated, lock the tab on the underside of the system-board latch in the opening (hole) in the chassis.

6. If you want to install or remove any other options, do so now. Otherwise, go to "Completing the Installation".

System Board Illustration
The system board, also called the planar or motherboard, is the main circuit board in the server. It provides basic
server functions and supports a variety of devices that are preinstalled or that you can install later.

Some configuration actions are controlled through jumpers on the system board, whereas other actions are controlled through switches. The following sections discuss the jumper and switch settings that you can change.

If you plan to install, remove, or replace hardware in the server, or if you must set jumpers and switches, you will
need to know the layout of the system board. The following illustration shows the layout of the system board in the server. The numbered pointers show the components that are discussed in this book.

Notes 1. An illustration of the system board and additional information are provided on a label inside the server. 2. The configuration switches (1-8) are also known as rocker switches. Their settings are specified later in this chapter.

Switch 8

System Board Replacement

Attention 1. The vital product data (VPD) and latest level of BIOS for the system you are servicing must be installed on the new system board. To do this, you must run the Flash Update program using the Flash Update diskette. Obtain the latest level of BIOS from the BBS/WEB, see "Online Support". A down level BIOS may cause false error and unnecessary replacement of the system board. 2. The processor and memory modules are separate FRUs. Remove them from the old system board and install them on the new one. 3. Be sure the new system board jumper setting match the old system board jumper settings.

If replacing the system board doesn't correct the problem, do the following:
1. Reinstall the options (processor, etc) on the old system board and reinstall it in the system.
2. Replace the processor.

	Search Keywords
	Document Category	Processors
	Date Created	20-11-98
	Last Updated	23-11-98
	Revision Date	20-11-99
	Brand	IBM PC Server
	Product Family	Netfinity 3000
	Machine Type	8476
	Model	ALL
	TypeModel
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