HP Workstation x4000 Supplementary Guide

HP x4000 Service Information
Upgrading Memory
Chapter 110
Upgrading Memory
The memory for the HP x4000 Workstation is located on a Memory
Expander Card, which plugs into the system board.
There are two memory banks (RDRAM channels):
• Bank I includes sockets 1B (J1), 2B (J2), 1A (J5), and 2A (J6).
• Bank II includes sockets 3B (J3), 4B (J4), 3A (J7), and 4A (J8).
This allows for a total of 8 RIMMs.
You must adhere to the following rules when loading memory:
• RIMMs must be loaded in matched pairs. Matching RIMMs have the
same RDRAM size, speed and Mbit technology.
• Each RDRAM bank (channel) must be either completely empty or
completely filled as shown in Figure 1-2. Therefore, if only one pair of
RIMMs is installed in a bank, then the remaining sockets in the bank
must contain continuity modules (CRIMMs) to ensure continuity.
NOTE All Workstations (unless they already have 8 RIMMs) ship with a pair of
CRIMMs in case they are needed in future memory configurations.
CRIMMSmaybestoredinanunusedmemorybank.

HP Workstation x4000 Specifications

General

Brand	HP
Model	Workstation x4000
Category	Desktop
Language	English