HP Dc5000 Hardware Reference Guide - HP Compaq Business Desktop dc5000 Microto - Page 15

Hardware Upgrades Installing Additional Memory The computer comes with double data rate synchronous dynamic random access memory (DDR-SDRAM) dual inline memory modules (DIMMs). DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 4GB of memory configured in a high-performing dual channel mode. DDR-SDRAM DIMMs For proper system operation, if the computer supports DDR-SDRAM DIMMs, the DIMMs must be: ■ industry-standard 184-pin ■ unbuffered PC2100 266 MHz-, PC2700 333 MHz-, or PC3200 400 MHz-compliant ■ 2.5 volt DDR-SDRAM DIMMs. The DDR-SDRAM DIMMs must also: ■ support CAS latency 2 or 2.5 (CL = 2 or CL = 2.5) ■ contain the mandatory JEDEC SPD information In addition, the computer supports: ■ 128Mbit, 256Mbit, and 512Mbit non-ECC memory technologies ■ single-sided and double-sided DIMMS ■ DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported The following processor bus frequencies are required for the system to run at the supported memory frequencies. Hardware Reference Guide www.hp.com 2-5