Installing A Memory Module - HP 79XXY Owner's Manual

RIMMs work in identical pairs, so they must be
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from the same vendor, have the same speed,
and memory size density within each channel
(see the memory table).
When C-RIMMs are used to fill empty sockets,
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they must be placed in the RIMM A2 and
RIMM B2 sockets. The RIMMs must be inserted
in the RIMM A1 and RIMM B1 sockets.
The following table illustrates the initial
combinations of RIMMs you can use and the
insertion sequence.
Channel 1
Total
RIMM A1 RIMM A2
Memory socket socket
128 MB 64 MB C-RIMM
RIMM
256 MB 64 MB 64 MB
RIMM RIMM
256 MB 128 MB C-RIMM
RIMM
384 MB 128 MB 64 MB
RIMM RIMM
512 MB 128 MB 128 MB
RIMM RIMM
512 MB 256 MB C-RIMM
RIMM
Channel 2
RIMM B1 RIMM B2
socket
socket
64 MB C-RIMM
RIMM
64 MB 64 MB
RIMM RIMM
128 MB C-RIMM
RIMM
128 MB 64 MB
RIMM RIMM
128 MB 128 MB
RIMM RIMM
256 MB C-RIMM
RIMM

Installing a Memory Module

1 Turn off the computer and all peripherals.
2 Disconnect the modem/phone cable.
3 Disconnect the power cord and all other
attached cables (such as the keyboard, mouse,
and monitor).
4 Remove the side panel and the fan duct (see
"Removing the Side Panel" on page 4 and
"Removing the Fan Duct" on page 5).
5 Locate the memory sockets on the
motherboard.
DIMM and
DDR DIMM
Note:
If all of the memory sockets are filled, you need
to remove one of the memory modules (see
"Removing a Memory Module" on page 11).
6 Move any cabling out of the way, if necessary.
upgrading and servicing the pc
RIMM
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