Removal and replacement procedures 41
IMPORTANT: If upgrading processor speed, update the system ROM before installing the processor.
IMPORTANT: Processor socket 1 and PPM slot 1 must be populated at all times or the server does not
function properly.
IMPORTANT: PPM slots must be populated when processors are installed. If PPM slots are not populated,
the server halts during POST or does not boot.
IMPORTANT: If you replace a failed processor or processors, clear the status log in RBSU after powering
up the server. For RBSU procedures, refer to the Documentation CD.
To replace the component, reverse the removal procedure.
Battery
If the server no longer automatically displays the correct date and time, you may need to replace the
battery that provides power to the real-time clock.
WARNING: The computer contains an internal lithium manganese dioxide, a vanadium
pentoxide, or an alkaline battery pack. A risk of fire and burns exists if the battery pack
is not properly handled. To reduce the risk of personal injury:
• Do not attempt to recharge the battery.
• Do not expose the battery to temperatures higher than 60°C (140°F).
• Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or
water.
• Replace only with the spare designated for this product.
To remove the component:
1. Power down the server (on page 20).
2. Extend or remove the server from the rack ("Extend the server from the rack" on page 19, "Remove
the server from the rack" on page 20).
3. Remove the access panel ("Access panel" on page 22).
4. Remove the PCI riser cage.
CAUTION: To prevent damage to the server or expansion boards, power down the server and remove all
AC power cords before removing or installing the PCI riser cage.
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