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Memory and Microprocessor Configuration 5–3
Upgrading SDRAM Memory
Note: The following are important items to remember
- in order for the ECC memory feature to work, all DIMMs must be 72bit.
- To populate a bank,you must use 2 matched DIMMs.
5.2 Upgrading SDRAM Memory
You can upgrade memory in the AlphaPC 164UX by adding more DIMMs or
replacing the ones that you have with a greater size. Refer to Figure 2–1 for DIMM
connector locations.
Use the following general guidelines:
1. Observe antistatic precautions. Handle DIMMs only at the edges to prevent
damage.
2. Remove power from the system.
3. Open levers and align the DIMM.
256MB 256MB 32MB 32MB 32MB 32MB
256MB 256MB 64MB 64MB
672MB 256MB 256MB 64MB 64MB 16MB 16MB
704MB 256MB 256MB 64MB 64MB 32MB 32MB
768MB 128MB 128MB 128MB 128MB 128MB 128MB
256MB 256MB 64MB 64MB 64MB 64MB
256MB 256MB 128MB 128MB
800MB 256MB 256MB 128MB 128MB 16MB 16MB
832MB 256MB 256MB 128MB 128MB 32MB 32MB
896MB 256MB 256MB 128MB 128MB 64MB 64MB
1024MB 256MB 256MB 128MB 128MB 128MB 128MB
256MB 256MB 256MB 256MB
1056MB 256MB 256MB 256MB 256MB 16MB 16MB
1088MB 256MB 256MB 256MB 256MB 32MB 32MB
1152MB 256MB 256MB 256MB 256MB 64MB 64MB
1280MB 256MB 256MB 256MB 256MB 128MB 128MB
1536MB 256MB 256MB 256MB 256MB 256MB 256MB
Table 5–1 AlphaPC 164UX SDRAM Memory Configurations
Total
Memory
Bank 0 Bank 1 Bank 2
U3 U4 U5 U6 U7 U8