Hardware Upgrades
■
Install RIMMs in pairs across both memory channels. Each
RIMM socket populated with a RIMM or CRIMM on Channel A
must be populated with an identical RIMM or CRIMM on
Channel B. For examples of the correct configuration sequence,
see the “RIMM Installation Configuration” section in this chapter.
■
Do not exceed 32 Direct RDRAM devices on each Direct Rambus
memory channel. A label on the RIMM will indicate the number
and speed of Direct RDRAM devices on the RIMM.
You cannot remove or add Direct RDRAMs to a RIMM because the Direct
RDRAMs are soldered on and encased by another material.
■
Use only 800-MHz RIMMs (or future speeds) only. Your system
will not boot if slower speed RIMMs (for example, 600 or 712-
MHz) are installed.
■
Do not mix RIMMs with different memory speeds. Performance
will reflect the slowest speed RIMM.
■
Use only RIMMs that have been tested and approved by Compaq.
Not all RIMMs meet the Compaq standard for quality and
reliability.
CAUTION: Your workstation will not function if the previous guidelines
are not followed when installing RIMMs.
RIMM Installation Configuration
When installing RIMMs, you must use the configurations in the
following table.
RIMM Installation Configuration
Memory Channel A
Memory Channel B
RIMM Socket
RIMM Socket
RIMM Socket
RIMM Socket
Possible
Configuration
XMM1 XMM2 XMM3
XMM4
1
RIMM CRIMM RIMM
CRIMM
2
RIMM
RIMM
RIMM
RIMM
Compaq Evo Workstation W6000 Hardware Reference Guide
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