Service manual

Chapter 6 Replacing Parts
74
Replacing DIMMs
NOTE If a DIMM is not recognized by the NetServer during boot, consider reseating it in the
slot before replacing it with another DIMM.
In the event of a DIMM failure, removal and replacement is simple. Be sure to refer to the following "Memory
Configuration Guidelines" presented below.
CAUTION The EDO DIMMs and PC 100 SDRAM from earlier HP NetServer models will fit into
the DIMM slots in the NetServer LC2000r/LC2000, but the EDO DIMMs and PC 100
SDRAM will not function properly. Use only 133 MHz SDRAM DIMMs acquired from
HP.
Memory Configuration Guidelines
• The HP NetServer LC 2000r or LC 2000 uses 133 MHz SDRAM DIMMs, which are electrically
different from the EDO memory modules used in previous HP NetServer models.
• DIMMs sizes supported are 64 MB, 128 MB, 256 MB, 512 MB, or 1 GB in any combination.
• Supported memory capacity ranges from 64 MB to 4 GB maximum (1 GB per DIMM slot and 4
DIMMs slots total). The minimum capacity is 64 MB (one DIMM).
l DIMM sizes may be mixed on the system board and may be loaded in any order.
The HP NetServer ships with at least one DIMM.
CAUTION The BIOS checks for compliance to memory guidelines during self-test prior to
booting (for example, the presence of the correct type of DIMM), and the BIOS may
not allow the system to complete the boot process.
• When handling DIMMs, observe anti-static precautions to avoid damage.
DIMM Removal
Use this procedure to remove DIMMs from the HP NetServer's system board. The HP NetServer must be
powered down and the appropriate cover must be removed from the HP NetServer, before removing any
DIMMs.
1. Log off all users and if necessary, back-up files.
2. Follow instructions in your network operating system (NOS) documentation to gracefully shut
down all networking software and applications.
3. Press the power switch on the HP NetServer's control panel when prompted by the operating
system.
4. Disconnect the power cables.
WARNING The power supplies will continue to provide standby current to the NetServer until
the power cable is disconnected.
5. Gain access to the HP NetServer by referring to Replacing the Bezel and Replacing the
Covers.