Supported memory configurations - IBM IntelliStation Z Pro (Type 6866)

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Rambus Inline memory modules (RIMMs)
The IBM-installed RIMMs are ECC (error checking and correction) RDRAM (Rambus dynamic random access memory) modules.

When installing or replacing RIMMs, take the following information into consideration:

• RIMM connectors do not support dual inline memory modules (DIMMs).
• Use only PC600 or PC800 RIMMs.
• There are four or eight RIMM memory cards. RIMMs must be installed in pairs. The RIMMs installed in a RIMM connector pair must be of the same speed, and size.
• For four RIMM cards, any connector that does not have a RIMM installed must have a continuity R!MM (C-RIMM).
• For eight RIMM cards, pairs 1 and 3 must have RIMMs or C-RIMMs installed in them. If RIMMs are installed in pair 2, RIMMs or C-RIMMs must be installed in pair 4. For the arrangement of the RIMM connector pairs on the computer memory card, see the illustration on page 153.
• Install only ECC RIMMS to enable ECC. if ECC and non-ecc memory are used together the memory will function as non-ecc memory.

Note: If PC600 and PC800 RIMMs are used together, all memory will function at the speed of the slowest RIMM.

Eight RIMM Memory card configuration

Memory placement for 8-RIMM Memory Card


Note: Memory must be installed in matched pairs
* Non-optimal performance configuration
(1) These connectors may either be left empty or used to store C-RIMMs

Four RIMM Memory card configuration
Memory placement for 4-RIMM Memory Card


Note: Memory must be installed in matched pairs