Product Documentation
Abstract
System board, system board illustration, and system board removal and installation for Netfinity 1000.
Content
Source
Hardware Maintenance Manual (HMM)
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:
|
To install an adapter, you might have to remove the system board.
To remove the system board
- Remove the server side cover.
- Position the server as described in "Accessing the system board" in the HMM.
- Remove the bottom cover.
- Loosen, but do not remove the riser card mounting screw.
- Lift the system board latch handle upward to disconnect the plastic tab on the bottom of the handle from the chassis.
- 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. |

- Using the tab, slide the system board out and set it aside.
To reinstall the system board
- Make sure that the system-board latch handle is in the extended position.
- 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.
- Rotate the latch handle counterclockwise until the system board is properly aligned with the riser-card edge connector.
- 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. |
- Re-tighten the riser card mounting screw.
- 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. |
- 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:
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System board replacement
| Attention
|
If replacing the system board doesn't correct the problem, do the following:
- Reinstall the options (processor, etc) on the old system board and reinstall it in the system.
- Replace the processor.
Document Location
Worldwide
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Document Information
Modified date:
23 January 2019
UID
ibm1MCGN-46ZR9P