Compaq AlphaServer ES45 1B User Manual

Configuring and Installing Components 4-25
Rules for DIMM Installation
Refer to Figure 4–11 or Figure 4–12 and observe the following rules for install-
ing DIMMs.
• Youcaninstallupto32DIMMs(Models2,2B,and3B)andupto16DIMMs
(Model 1B).
• An option consists of a set 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 (Model 1B) and
two sets for systems that support 32 DIMMs (Models 2, 2B, and 3B).
• DIMMs in an array must be the same size 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 size and type as those installed in Set 0. Simi-
larly, Set 5 must be populated with the same size and type of DIMMs as are
in Set 1, and so on, as indicated in the following table.
Array
System Supporting
32 DIMMs (Models 2, 2B, and 3B)
System Supporting
16 DIMMs (Model 1B)
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
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Compaq AlphaServer ES45 1B Specifications

General

Brand	Compaq
Model	AlphaServer ES45 1B
Category	Server
Language	English