Removal and replacement procedures 64
POST memory test
1. Power on the server.
2. Press the F9 key, when prompted, to enter RBSU.
3. Select Advanced Options.
4. Change POST Speed Up to Disable.
5. Press any key to return to the RBSU main menu.
6. Press the F10 key, when prompted, to exit RBSU. The server reboots and tests all memory in the
system.
7. Once the memory has been tested, re-enable POST Speed Up for faster system boot, if desired.
ROM-based diagnostics
1. Power up the server.
2. Press the F10 key, when prompted, to enter the System Maintenance menu.
3. Select Diagnostics.
4. Run the Memory Diagnostics.
5. After the memory has been tested, exit the utility and reboot.
6. Select the AMP mode ("Selecting the AMP mode" on page 64).
Selecting the AMP mode
1. Upon reboot, press the F9 key, when prompted, to enter RBSU.
2. Select System Options.
3. Select Advanced Memory Protection.
4. Select the desired memory mode.
o Advanced ECC (hot-add enabled)
o Advanced ECC (hot-add disabled)
o Online Spare Memory with Advanced ECC
o Hot-Plug Mirrored Memory with Advanced ECC
o Hot-Plug RAID Memory with Advanced ECC
5. Press the Escape key twice to go back to the main RBSU menu.
6. Press the F10 key, when prompted, to exit RBSU. The server reboots and tests all memory in the
system.
IMPORTANT: To reconfigure the memory mode after initial setup, you must reboot the system,
enter RBSU, and select an AMP mode.
Memory boards and DIMMs
Memory board and DIMM removal and replacement procedures can be either hot-replace or non-hot-
plug, depending on how the server is configured. Hot-replace enables failed or degraded DIMMs to be
replaced while the server is running, and has no operating system requirements.
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