System memory, System memory installation guidelines – Dell Precision 330 User Manual
Page 65
Installing Upgrades
65
System Memory
Your computer supports Rambus dynamic random-access memory
(RDRAM) Rambus in-line memory modules (RIMMs) in 64-, 128-, 256-,
and 512-megabyte (MB) capacities (see "
"). Each socket that does not contain a RIMM must contain
a Rambus continuity RIMM (CRIMM). To locate the RIMM sockets on the
system board, see "
System Memory Installation Guidelines
When installing memory modules in the system board sockets, observe the
following guidelines:
•
To reach the maximum 2-gigabyte (GB) memory total, you must
install four 512-MB RIMMs that each have a maximum of 16 memory
devices. The system supports no more than a total of 64 memory
devices on all installed RIMMs.
•
See "
" for the location of the label on a RIMM that
identifies the number of memory devices it contains. You can also
determine the number of memory devices installed through the
System Memory option in
.
NOTE:
The computer does not support RIMMs with six memory devices.
•
Each RIMM socket must be occupied either by a RIMM or a CRIMM,
and must be upgraded in matched pairs of identical capacity in slots 1
and 2 or slots 3 and 4.
•
Mixed RIMM pairs provides a capacity equal to the sum of the four
RIMMs; mixed pairs of RIMMs that provide error checking and
correction (ECC) and non-ECC will all function as non-ECC.
•
Be sure to install a RIMM in socket 1 first (closest to the processor)
before installing modules in the other sockets.
•
The system board supports PC600 and PC800 memory modules.
PC700 memory is supported, but it will operate at PC600 speeds.