Installing and Configuring
Memory Modules
CAUTION:
Use an anti static service kit (3M 8501/8502/8503 or equivalent). This kit includes
a static-dissipating work surface, a chassis clip lead, and a wrist strap.
The HP server’s main memory is implemented using six memory slots on the system board,
which support up to 12 GB (2 GB x 6) of memory. The server uses only 2.5V, 184-pin, PC
2100 266 MHz, registered, ECC, DDR DIMMs and ships with at least one 256 MB DIMM.
The embedded video controller is provided with 8 MB standard video memory and cannot be
upgraded.
Guidelines
CAUTION:
Configurations of 3 or 5 DIMMs are not supported in this system. The server
cannot handle a mix of dual channel on first pair(s) and a single channel on the last DIMM.
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The HP ProLiant ML150 server uses only PC 2100 266 MHz, registered, ECC, DDR
DIMMs, which are electrically different from the EDO and PC100 SDRAM memory
modules used in previous HP server models.
DIMM sizes supported are 256 MB, 512 MB, 1 GB, and 2 GB, allowing a total of 12 GB
maximum system memory (2 GB in each of the 6 DIMM slots).
Supported DIMM configurations are one single DIMM, one pair (2 DIMMs), two pairs
(4 DIMMs), or three pairs (6 DIMMS). Each pair of DIMMs must be the same type and
size.
DIMM sizes may be mixed on the system board and may be loaded in any order.
However, HP recommends starting at slot 1 and filling the slots in order with the largest
size first: 1, 2, 3, 4, 5, and 6.
When handling DIMMs, observe anti-static precautions to avoid damage.
Installing Additional DIMMs
1. If the server is operating, log off all users, back up files, and power down the server.
2. Disconnect the power cord and any external cables connected to the server. If necessary,
label each one to expedite re-assembly.
HP ProLiant ML150 Server Operations and Maintenance Guide
2-15
HP CONFIDENTIAL
Codename: Stone Soup Part Number: 343329-001 Last Saved On: 8/14/03 10:09 AM
