HP Media Center 863n HP Media Center Desktop PCs - (English) Hardware User Gui - Page 64

Adding Memory 256 MB memory configurations vary depending on your computer model. 256 MB and 512 MB DIMM memory modules are not compatible with all computer models. n The motherboard contains sockets for either DIMMs (dual in-line memory modules) or DDR (double data rate) DIMMs, depending on which PC model you have. To determine which type of memory module your PC uses, go to the HP Web site by typing http://www.hp.com into your Web browser address box and pressing Enter on your keyboard. Click the support link. Search for your PC model number, and then search for upgrading memory to find out your system configuration and memory requirements. The motherboard contains 168-pin DIMM sockets or 184-pin DDR DIMM sockets. The exact number of sockets depends on which model you have. DIMMs DIMMs must be 168-pin unbuffered SDRAM (synchronous dynamic random access memory), compliant with the Intel® PC SDRAM Unbuffered DIMM Specification. The PC comes with one or more memory modules, but you can replace existing memory modules with higher capacity ones. You can install 64 MB, 128 MB, 256 MB, or 512 MB memory modules in the PC. DDR DIMMs DDR DIMMs must be 184-pin unbuffered DDR SDRAM. The PC comes with one or more memory modules, but you can replace existing memory modules with higher capacity ones. You can install 64 MB, 128 MB, 256 MB, or 512 MB memory modules in the PC. Using the wrong type of memory module could damage the PC. w DIMM DDR DIMM 56