Compaq AlphaServer ES40 User Manual

6-42 Compaq AlphaServer ES40 Service Guide
6.10.2 Memory Configuration
Become familiar with the rules for memory configuration before
adding DIMMs to the system. For the Model 2 system, do not mix
stacked and unstacked DIMMs within an array.
Refer to Figure 6–12 or Figure 6–13 and observe the following rules for
installing DIMMs.
•
You can install up to 16 DIMMs or up to 32 DIMMs, depending on the
system model.
•
A set consists of 4 DIMMs. You must install all 4 DIMMs.
•
Fill sets in numerical order. Populate all 4 slots in Set 0, then populate Set
1, and so on.
•
An “array” is one set for systems that support 16 DIMMs and two sets for
systems that support 32 DIMMs.
•
DIMMs in an array must be the same capacity and type. For example,
suppose you have populated Sets 0, 1, 2, and 3. When you populate Set 4,
the DIMMs must be the same capacity and type as those installed in Set 0.
Similarly, Set 5 must be populated with DIMMs of the same capacity and
type as are in Set 1, and so on, as indicated in the following table.
Array
Model 2 System
(Supports 32 DIMMs)
Model 1 System
(Supports 16 DIMMs)
0 Set 0 and Set 4 Set 0
1 Set 1 and Set 5 Set 1
2 Set 2 and Set 6 Set 2
3 Set 3 and Set 7 Set 3

Compaq AlphaServer ES40 Specifications

General

Brand	Compaq
Model	AlphaServer ES40
Category	Server
Language	English