Asus P5P41C User Manual - Page 23

1.7.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered non‑ECC DDR3 DIMMS into the black sockets or 512MB, 1GB, 2GB, and 4GB unbuffered non‑ECC DDR2 DIMMS into the blue sockets • DO NOT use DDR2 and DDR3 memory modules simultaneously. • 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, it is recommended 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: - Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS. - Install a 64-bit Windows® OS when 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. • The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. • For system stability, use a more efficient cooling system to support a full memory load (2 DIMMs) or overclocking conditions. P5P41C Motherboard Qualified Vendors Lists (QVL) DDR3-1066 MHz capability Vendor Part No. Size Crucial Crucial CT12864BA1067.8FF CT25664BA1067.16FF 1024MB 2048MB ELPIDA EBJ10UE8EDF0-AE-F 1024MB ELPIDA ELPIDA ELPIDA EBJ51UD8BAFA-AC-E EBJ51UD8BAFA-AE-E EBJ11UD8BAFA-AE-E 512MB 512MB 1024MB ELPIDA EBJ21UE8EDF0-AE-F 2048MB KINGSTON KINGSTON Micron Micron SAMSUNG SAMSUNG Elixir Elixir Elixir Kingtiger KVR1066D3N7/1G KVR1066D3N7/2G MT8JTF12864AZ-1G1F1 MT16JTF25664AZ-1G1F1 M378B2873EH1-CF8 M378B5273BH1-CF8 M2Y2G64CB8HC5N-BE M2Y2G64CBHA9N-BE M2Y2G64CBHC9N-BE 2GB DIMM PC3-8500 1024MB 2048MB 1024MB 2048MB 1024MB 4096MB 2048MB 2048MB 2048MB 2048MB SS/ DS Chip Brand SS Micron DS Micron SS ELPIDA SS Elpida SS Elpida DS Elpida DS ELPIDA SS Kingston DS Kingston SS Micron DS Micron SS Samsung DS SAMSUNG DS Elixir DS DS Elixir DS Hynix Chip NO. 9GF22D9KPT 9HF22D9KPT J1108EDSE-DJ-F J5308BASE-AC-E J5308BASE-AC-E J5308BASE-AC-E J1108EDSE-DJ-F D1288JEKAPGA7U D1288JEKAPGA7U 9GF22D9KPT 9HF22D9KPT SEC 901 HCF8 K4B1G0846E 846 K4B2G0846B-HCF8 N2CB1G80CN-BE H5TQ1G83AFP G7C DIMM socket support Timing Voltage (Optional) A* B* 7 - • • 7 - • • - 1.35V(low voltage) • • - - • • - - • • - - • • - 1.35V(low voltage) • • 7 1.5V • • 7 1.5V • • 7 - • • 7 - • • - - • • - - • • - - • • 7-7-7-20 - • • - - • • - - • • ASUS P5P41C 1-13