Asus P7H55-M LX USB3 User Manual - Page 13

1.4.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 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, it is recommended that you obtain memory modules from the same vendor. • Due to the memory address limitation on the 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 either of the following: - Use 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. P7H55-M LX/USB3 Series Motherboard Qualified Vendors List (QVL) DDR3-1333MHz capability Vendor Part No. A-Data Apacer CORSAIR CORSAIR Crucial Crucial ELPIDA AD31333G002GMU 78.A1GC6.9L1 CM3X1024-1333C9 TR3X3G1333C9 CT12864BA1339.8FF BL25664BN1337.16FF (XMP) EBJ10UE8EDF0-DJ-F G.SKILL G.SKILL G.SKILL G.SKILL GEIL F3-10600CL8D-2GBHK(XMP) F3-10600CL9D-2GBNQ F3-10600CL8D-4GBHK(XMP) F3-10666CL7D-8GBRH(XMP) GG34GB1333C9DC GEIL Hynix GV34GB1333C9DC HMT112U6TFR8A-H9 KINGMAX KINGMAX Kingston Kingston Micron OCZ OCZ PSC SAMSUNG SAMSUNG Super Talent FLFE85F-B8KL9 FLFF65F-C8KM9-NEES KVR1333D3N9/2G KHX1333C9D3UK2/4GX(XMP) MT8JTF12864AZ-1G4F1 OCZ3F13334GK OCZ3G1333LV6GK AL8F8G73D-DG1 M378B2873FHS-CH9 M378B5673FH0-CH9 W1333UX6GM Size 2GB 2GB 1GB 3GB(3 x 1GB) 1GB 6GB(3 x 2GB) 1GB 1GB 1GB 4GB(2 x 2GB) 8GB(2 x 4GB) 4GB(2 x 2GB) 4GB(2 x 2GB) 1GB 2GB 4GB 2GB 4GB(2 x 2GB) 1GB 4GB(2 x 2GB) 6GB(3 x 2GB) 2GB 1GB 2GB 6GB(3x 2GB) SS/ DS Chip Brand Chip No. DS DS APACER SS SS SS Micron DS SS ELPIDA AM5D5808DEWSBG 9FF22D9KPT J1108EDSE-DJ-F SS G.SKILL DS G.SKILL DS DS DS GEIL GL1L128M88BA12N DS SS HYNIX H5TC1G83TFRH9A DS KINGMAX KKB8FNWBFGNX-26A DS KINGMAX KFC8FNMXF-BXX-15A DS ELPIDA J1108BDSE-DJ-F DS - - SS Micron 9FF22D9KPT DS - - DS - - DS PSC A3P1GF3DGF928M9B05 SS SAMSUNG K4B1G0846F DS SAMSUNG K4B1G0846F DS Micron 0BF27D9KPT Timing DIMM (BIOS) 8-8-8-24 - 9-9-9-24 9-9-9-24 9 7-7-7-24 - 8-8-8-21 7-7-7-21 9-9-9-24 9-9-9-24 - 9 9 9 9-9-9-20 9-9-9-20 8-8-8-24 9-9-9-24 Voltage DIMM Support A* B* 1.65-1.85V • • - •• 1.60V • • 1.50V • • - •• 1.65V • • 1.35V(low • • voltage) - •• - •• 1.5-1.6V • • 1.5V •• 1.3V(low • • voltage) 1.5V •• 1.35V(low • • voltage) - •• - •• 1.5V •• XMP 1.25V • • - •• 1.7V •• 1.65V • • 1.5V •• - •• - •• 1.5V •• ASUS P7H55-M LX/USB3 1-4