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4-36 Compaq Professional Workstation SP750 Maintenance and Service Guide
Important Guidelines for RIMM Installation
When installing RIMMs, you must follow the guidelines in Table 4-9.
Use only 64-, 128-, or 256-MB, 600-MHz or
800-MHz Error Checking and Correcting
(ECC) RIMMs.
Do not exceed 32-count Direct RDRAM devices on
each Direct Rambus channel.
RIMMs must be installed correctly.
Install RIMMs in pairs across both channels.
Do not mix 600-MHz with 800-MHz RIMMs.
Installing a RIMM
To install a RIMM after the memory board has been removed from the workstation system
board:
1. Press outward on the two RIMM slot retainer latches.
2. Place the RIMM in the appropriate RIMM slot ensuring that it is fully inserted and
properly seated.
CAUTION: The listed guidelines must be followed when installing RIMMs or your workstation
will not function.
Important Guidelines for RIMM Installation
Guideline
CAUTION: Be sure to follow the correct configuration guidelines respective to your memory
board or your system will not function.
Table 4-9
RIMMs must support Error Checking and
Correcting (ECC).
A factory label on the RIMM indicates the type, size,
speed, and number of RDRAMS contained on
the RIMM.
Be sure to match the two key slots on the RIMM with
the tab on the RIMM slot. Push the RIMM down into
the RIMM slot, ensuring that it is fully inserted and
properly seated.
Each RIMM slot populated with a RIMM or CRIMM on
channel A must be populated with an identical RIMM
or CRIMM on Channel B.
Performance will reflect the lowest speed RIMMs.
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