Compaq AlphaServer ES45 1B Owner's Manual page 135

Rules for DIMM Installation
Refer to Figure 4–11 or Figure 4–12 and observe the following rules for install-
ing DIMMs.
•
You can install up to 32 DIMMs (Models 2, 2B, and 3B) and up to 16 DIMMs
(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.
System Supporting
Array 32 DIMMs (Models 2, 2B, and 3B)
0 Set 0 and Set 4
1 Set 1 and Set 5
2 Set 2 and Set 6
3 Set 3 and Set 7
Configuring and Installing Components
System Supporting
16 DIMMs (Model 1B)
Set 0
Set 1
Set 2
Set 3
Continued on next page
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