Asus P5QL SE User Manual - Page 21

1.7.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered 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 install a 64-bit Windows OS when 4GB or more memory is installed on the motherboard. • This motherboard does not support memory modules made up of 128Mb chips. • The default memory operation frequency depends on its SPD. 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. P5QL SE Motherboard Qualified Vendors Lists (QVL) DDR2-1066MHz capability Vendor Kingston Kingston Kingston Qimonda Kingmax Corsair Corsair Transcend Transcend GEIL GEIL GEIL GEIL G.SKILL G.SKILL G.SKILL Kingbox AENEON Part No. Size KHX8500D2/512 KVR1066D2N7/512 KHX8500D2K2/1GN HYS64T128020EU-19F-C KLED48F-A8K15 CM2X1024-8500C5 CM2X1024-8500C5D TX1066QLJ-2GK1GB TX1066QLU-2GK GB24GB8500C5QC GE22GB1066C5DC GB24GB8500C5DC GE24GB1066C5DC F2-8500CL5D-2GBPK F2-8500CL5D-4GBPK F2-8500CL5S-1GBPK EP512D21066PS AXT860UD20-19E 512MB 512MB 512MB 1G 1G 1G 1G 1G 4G(kit of 2) 1G 1G 2G 2G 2G(kit of 2) 4G(kit of 2) 1G 512MB 2G SS/DS SS SS SS DS DS DS SS DS SS SS SS DS DS DS DS DS SS DS CL N/A N/A N/A 6 N/A N/A 5-5-5-15 5 5 5 5 5 5 5-5-5-15 5-5-5-15 5-5-5-15 N/A 5 Chip No. Chip Brand Heat-Sink Package Kingston E5108AJBG-1J-E Elpida Heat-Sink Package Kingston HYB18T512800CF19FFSS24313 Qimonda KKA8FFIXF-JFS-18A Kingmax Heat-Sink Package N/A Heat-Sink Package NA Heat-Sink Package Transced Heat-Sink Package Transced GL2L128M88BA25AB GEIL Heat-Sink Package GEIL GL2L128M88BA25AB GEIL Heat-Sink Package GEIL Heat-Sink Package N/A Heat-Sink Package N/A Heat-Sink Package G.SKILL 6QD22D9GCT Micron Heat-Sink Package AENEON DIMM support A* B* • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ASUS P5QL SE 1-11