Dell Precision 330 User's Guide - Page 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 "Sample Memory Module Configurations"). 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 Board Components." 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 "RIMM Label" 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 system setup. 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. Instal ling Upgr ades 65