ASUS A7V8X motherboard user guide2-72.5.2Memory configurationsDDR DIMM1DDR DIMM2DDR DIMM3(Rows 0&1)(Rows 2&3)(Rows 4&5)SS/DSSS/DSSS/DSSS/DSSS/DSSS/DS*SS - Single-sided DIMMDS - Double-sided DIMMUse only the following combinations to install DDR DIMMs. Otherwise,the system may not boot up.2.5.3DDR400 Qualified Vendor ListYou may install any DDR DIMMs with 64MB, 128MB, 256MB, 512MB, and1GB densities into the DIMM sockets.The following table lists the PC3200-DDR400 memory modules that havebeen tested and qualified for use with this motherboard.VendorModelSizeSamsung M368L6423DTM-CC4512MBSamsung M368L3223DTM-CC4256MBKingston KVR400X64C25/512512MBCurrently, only one (1) DIMM slot supports DDR400 modules. Make sureto use only the tested and qualified DDR400 DIMMs listed above. OtherDDR DIMMs manufactured by other vendors may not be suitable for thismotherboard. Visit the ASUS website (www.asus.com) for the latestqualified vendor DDR400 module list.