IBM 8863 User Manual - Page 24
Installing, memory, module
UPC - 000435474667
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If a problem with a DIMM is detected, light path diagnostics will light the system-error LED on the front of the server, indicating that there is a problem and will guide you to the defective DIMM. When this occurs, first identify the defective DIMM; then, remove and replace the DIMM. The following illustration shows the LEDs on the memory card: Memory Port Power Error Memory Hot-Swap Enabled Memory Hot-Swap Enabled LED: When this LED is lit, it indicates that hot-swap memory is enabled. Error LED: When this LED is lit, it indicates that a DIMM or memory card has failed. Memory Port Power LED: When this LED is off, it indicates that power is removed from the port and that you can remove the memory card to replace a failed memory card or DIMM. Installing a memory module Attention: Static electricity that is released to internal server components when the server is powered-on might cause the server to halt, which could result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when working inside the server with the power on. Complete the following steps to install additional memory modules: 1. Read the safety information beginning on page v and "Installation guidelines" on page 7. 2. If you are not hot-swapping a DIMM, turn off the server and peripheral devices, and disconnect the power cords and all external cables necessary to replace the device. Attention: When moving the memory card, do not allow it to impact any components or structures inside the server. If you are hot swapping a DIMM, make sure that the Memory Hot-Swap Enabled LED is lit. 12 IBM xSeries 366 Type 8863: Installation Guide