Compaq 470007-802 Making Hardware Changes - Compaq Deskpro Family of Personal - Page 48

DIMMs For proper system operation, the RIMMs must be industrystandard 184-pin, PC600-, PC700-, or PC800-compliant RAMBUS memory modules, depending on the model. They must also contain the mandatory Joint Electronic Device Engineering Council (JEDEC) Serial Presence Detect (SPD) information (1.0 or later). Intel 820 chipset-based Deskpro models have one Direct RAMBUS channel that supports a maximum of 32 devices. The total number of devices on all RIMMs must be less than or equal to 32. Each RIMM includes a label that lists the number of devices contained on the RIMM. ✎ If you install RIMMs of varying speeds, the system will run at the speed of the slowest installed RIMM. RIMM upgrade kits are available as options from Compaq. The memory sockets on the Intel 810 and 810e chipset-based system boards can be populated with industry-standard DIMMs. These memory module slots are populated with at least one preinstalled memory module. To achieve the maximum memory support, you may be required to replace the preinstalled DIMM with a higher capacity DIMM. For proper system operation, the DIMMs must be industrystandard 168-pin, 100 MHz, unbuffered, PC100-compliant SDRAM DIMMs, depending on the model. The SDRAM DIMMs must support CAS Latency 2 or 3 (CL = 2 or CL = 3). They must also contain the mandatory Joint Electronic Device Engineering Council (JEDEC) Serial Presence Detect (SPD) information. DIMMs constructed with x4 SDRAM are not supported; the system will not start using unsupported DIMMs. Making Hardware Changes 3-9