Installing A Memory Module - IBM System x3850 Installation Manual

Installing a memory module

Attention:
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
2. If you are not hot-swapping a DIMM, turn off the server and peripheral devices,
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IBM System x3850 Type 8864: Installation Guide
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:
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.
Static electricity that is released to internal server components when
page 7.
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.
Memory Port Power