Asus K8V Deluxe K8V Deluxe User Manual - Page 37

DIMM1 DIMM2 DIMM3 104 Pins 2.5 System memory 2.5.1 Overview The motherboard comes with three Double Data Rate (DDR) Dual Inline Memory Module (DIMM) sockets. These sockets support up to 3GB system memory using 184-pin PC3200/PC2700/PC2100/PC1600 unbuffered ECC DDR DIMMs and allow up to 5.33 GB/s data transfer rate. The following figure illustrates the location of the DDR DIMM sockets. K8V ® K8V 184-Pin DDR DIMM Sockets Notes on DDR technology The DDR SDRAM technology evolved from the mainstream PC66, PC100, PC133 memory known as Single Data Rate (SDR) SDRAM. DDR memory however, has the ability to perform two data operations in one clock cycle, thus providing twice the throughput of SDR memory. A DDR DIMM has the same physical dimensions as an SDR DIMM, but it has a 184-pin footprint compared to the 168-pin of the SDR DIMM. Also, a DDR DIMM is single notched while an SDR DIMM is double notched. Therefore, a DDR DIMM is not backward compatible with SDR, and should be installed only in a socket specially designed for DDR DIMMs. 80 Pins ASUS K8V Deluxe motherboard user guide 2-11