Figure 6-16 24-DIMM Memory Carrier Board Slot IDs

0C 1C 2C

0D

1D

2D

0A

1A

2A

0B

1B

2B

Memory Loading Rules and Guidelines

Use the following rules and guidelines when installing memory:

•Install DIMMs in pairs in the 8-DIMM memory carrier and in quads in the 24-DIMM memory carrier.

•Ensure all DIMMs within a pair or quad are identical.

•Install quads in order of capacity from largest to smallest. For example, install all 2 GB quads before 1 GB or smaller quads, and install all 1 GB quads before 512 MB quads.

•Side 0 must have equal or greater memory capacity than side 1.

•Install DIMM pairs or quads based on the following rules:

1.Load pairs or quads into the memory carrier in order, starting with slot 0 and ending with slot 2.

2.Install the first pair or quad in side 0.

3.Install the second pair or quad in side 1.

4.For the remaining pairs or quads:

a.If both sides of the memory carrier contain the same capacity of memory, install the next pair or quad in side 0.

b.If side 0 contains more memory capacity than side 1, install the next quad in side 1.

c.If side 1 is full, install the remaining quads in side 0.

Table 6-7shows several examples of proper memory carrier loading order.

Removing and Replacing the Memory Carrier Assembly 211