Asus A8V-X A8V-X User's Manual for English Edition - Page 25

1.7 System memory 1.7.1 Overview The motherboard comes with four 184-pin Double Data Rate (DDR) Dual Inline Memory Modules (DIMM) sockets. The following figure illustrates the location of the sockets: 104 Pins DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2 A8V-X 80 Pins ® A8V-X 184-pin DDR DIMM Sockets Channel Channel A Channel B Sockets DIMM_A1 and DIMM_A2 DIMM_B1 and DIMM_B2 1.7.2 Memory Configurations You may install 64MB, 128MB, 256 MB, 512 MB and 1 GB unbuffered ECC or non-ECC DDR DIMMs into the DIMM sockets using the memory configurations in this section. • Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. Refer to the DDR400 Qualified Vendors List on Page 1-15 for details. • If you installed four 1 GB memory modules, the system may detect less than 3GB of total memory because of address space allocation for other critical functions. This limitation applies to Windows XP 32bit version operating system since it does not support PAE(Physical Address Extension) mode. • If you install Windows XP 32-bit version operating system, we recommend that you install less than 3GB of total memory. • Due to CPU limitation, install on Channel B slots for a single-channel memory configuration. ASUS A8V-X 1-13