Compaq Professional Workstation SP750 Hardware Reference Guide
2-9
Compaq Confidential - Need to Know Required
Writer:
Beth Zanca
Part Number:
190709-001
File Name:
ch2.doc
Last Saved On:
04/12/00 1:02 PM
Last Saved By:
Lydia Sanchez
CAUTION:
Static electricity can damage the electronic components
of the workstation or option boards. Before beginning these memory
upgrade procedures, ensure that you are discharged of static
electricity by briefly touching a grounded metal object.
Before installing additional RIMMs, read Guidelines for RIMM
Installation in this chapter.
Guidelines for RIMM Installation
When installing RIMMs, you must follow the guidelines listed below:
■
A RIMM can be installed only one way. Be sure to match the two
key slots on the RIMM with the tabs on the RIMM socket. Push
the RIMM down into the RIMM socket, ensuring that it is fully
inserted and properly seated, and that the retaining arms are locked
in place.
■
CRIMMs must be installed in all empty RIMM sockets. The
CRIMMs are removed when you populate the sockets with
RIMMs. For examples on the correct configuration sequence,
refer to the previous section, Configurations for RIMM
Installation.
■
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 on the correct configuration sequence, refer to the
previous section, Configurations for RIMM Installation.
■
Do not exceed 32-count Direct RDRAM devices on each Direct
Rambus memory channel. A label on the RIMM will indicate the
number of Direct RDRAM devices on the RIMM and their speed.
✎
You cannot remove or add Direct RDRAMS to a RIMM
because the Direct RDRAMS are soldered on and encased by
another material.
■
Do not mix RIMMs with different memory speeds. Performance
will reflect the lowest speed RIMMs.
