Asus M4A785-M User Manual - Page 24

1.7.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR2 DIMMs into the DIMM sockets. • You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • Always install DIMMs with the same CAS latency. For optimum compatibility, we recommend that you obtain memory modules from the same vendor. • Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory, we recommend that you do any of the following: - Install a maximum of 3GB system memory if you are using a 32-bit Windows® OS. - Use a 64-bit Windows® OS if you want to install 4GB or more memory on the motherboard. • This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less. M4A785-M Motherboard Qualified Vendors Lists (QVL) DDR2-1200(O.C.)MHz capability Size Vendor Part No. 2048MB(Kit of 2) Kingston KHX96002K2/2G 2048MB(Kit of 2) OCZ OCZ2FX12002GK 2048MB(Kit of 2) Team TXDD1024M1300HC6 SS/ DS Chip Brand DS N/A DS N/A DS Heat-Sink Package Chip NO. CL Heat-Sink Package Heat-Sink Package Heat-Sink Package 5-5-5-15 5-5-5-18 6-6-6-18 DIMM support A* B* C • DDR2-1066MHz capability Size Vendor 4096MB(Kit of 2) A-Data 2048MB(kit of 2) Apacer 4096MB(kit of 2) Apacer 1024MB Corsair 2048MB(Kit of 2) Corsair 2048MB(Kit of 2) Corsair 1024MB Crucial 2048MB Crucial 2048MB(kit of 2) G.SKILL 1024MB G.SKILL 2048MB(Kit of 2) G.SKILL 4096MB(Kit of 2) G.SKILL 4096MB(Kit of 2) G.SKILL Part No. AD21066E002GU 78.0AG9S.9K4 78.AAGAL.9KZ CM2X1024-8500C5 CM2X1024-8500C5D CM2X2048-8500C5D BL12864AA1065.8FE5 CT25664AA1067.16FE1 F2-8500CL5D-2GBPI F2-8500CL5S-1GBPK F2-8500CL5D-2GBPK F2-8500CL5D-4GBPI-B F2-8500CL5D-4GBPI Chip Brand DS N/A DS N/A DS N/A DS Corsair DS N/A DS N/A SS N/A DS Micron SS N/A DS N/A DS N/A DS N/A DS N/A Chip NO. CL Heat-Sink Package 5-5-5-15 Heat-Sink Package 5-5-5-15 Heat-Sink Package 5-5-5-15 Heat-Sink Package N/A Heat-Sink Package 5-5-5-15 Heat-Sink Package 5-5-5-15 Heat-Sink Package N/A 9DJKH D9JKH 7-7-7-13 Heat-Sink Package 5-5-5-15 Heat-Sink PackageSN:815130037562 5-5-5-15 Heat-Sink Package 5-5-5-15 Heat-Sink Package 5-5-5-15 Heat-Sink Package 5-5-5-15 DIMM support A* B* C* • •• • • • •• •• • •• • •• • • • • • •• • •• (continued on the next page) 1-12 Chapter 1: Product introduction