Asus P5E3 User Guide - Page 40

• 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 chipset resource allocation, the system may detect less than 8 GB system memory when you installed four 2 GB DDR3 memory modules. • If you install four 1 GB memory modules, the system may detect less than 3 GB of total memory because of address space allocation for other critical functions. This limitation applies to Windows Vista 32-bit/Windows XP 32-bit version operating system since it does not support PAE (Physical Address Extention) mode. • If you install Windows Vista 32-bit/Windows XP 32-bit version operating system, we recommend that you install less than 3GB of total memory. Notes on memory limitations • Due to chipset limitation, this motherboard can only support up to 8 GB on the operating systems listed below. You may install a maximum of 2 GB DIMMs on each slot. 64-bit Windows XP Professional x64 Edition Windows Vista x64 Edition P5E3 Deluxe Motherboard Qualified Vendors Lists (QVL) DDR3-1800MHz capability Size Vendor Model CL Chip Brand 1GB CORSAIR TWIN3X2048-1800C7DF G 7 1GB OCZ OCZ3P18002GK 8 Micon Micon SS/ DS Component SS Heatsink SS Heatsink DIMM socket support (Optional) A* B* C* • • • • 2-14 Chapter 2: Hardware information