# Troubleshooting: Memory (DIMM) Components

DIMM, or dual in-line memory module, is a small circuit board that holds memory chips. A DIMM has 64-bit path to the memory chips.

> CAUTION: Do not attempt to service the system except as explained in the documentation. Only trained service technicians should remove the system cover to access any of the internal components. Refer to the documentation for your server for complete safety information before attempting to service your system.

Visually Inspecting Your System

Improperly set controls and loose or improperly connected cables are common causes of problems with hardware components. When investigating a system problem, first check all the external switches, controls, and cable connections. If this does not resolve your problem, then visually inspect the system's interior hardware for problems such as a loose card, cable connector, or mounting screw. Refer to Visual System Inspection for instructions about how to verify that your hardware components are properly installed.

Troubleshooting the Disk Component

Following is a list of possible causes for problems with the Memory (DIMM) component:

- Voltage problems.
- System Power problems.
- Ensure the component is seated properly.
- Verify that the socket is clean.
- Check configuration rules for DIMMs. Refer to the documentation for your server.
- Be sure to not mix DIMM speeds (or you may experience a performance impact).

Related Topics

Troubleshooting the Service Processor