Asus F1A75-I DELUXE User Manual - Page 25

1.7.2 Memory configurations You may install 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, we recommend that you obtain memory modules from the same vendor. • When overclocking, some AMD CPU models may not support DDR3 1866 MHz or higher frequency DIMMs. • 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 512 megabits (Mb) chips or less. • The maximum 16GB memory capacity can be supported with 8GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. • 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. To operate at the vendor-marked or at a higher frequency, refer to section 2.4 Ai Tweaker menu for manual memory frequency adjustment. • For system stability, use a more efficient memory cooling system to support a full memory load (2 DIMMs) or overclocking condition. F1A75-I DELUXE Motherboard Qualified Vendors Lists (QVL) DDR3-1066 MHz capability Vendors Part No. Size Crucial CT12864BA1067.8FF 1GB Crucial CT25664BA1067.16FF 2GB ELPIDA EBJ10UE8EDF0-AE-F 1GB ELPIDA EBJ21UE8EDF0-AE-F 2GB KINGSTON KVR1066D3N7/1G(low profile) 1GB KINGSTON KVR1066D3N7/2G 2GB KINGSTON KVR1066D3N7/4G 4GB Micron MT8JTF12864AZ-1G1F1 1GB Micron MT16JTF25664AZ-1G1F1 2GB Kingtiger 2GB DIMM PC3-8500 2GB SS/DS Chip Brand SS Micron DS Micron SS ELPIDA DS ELPIDA SS ELPIDA DS ELPIDA DS Hynix SS Micron DS Micron DS Hynix Chip NO. 9GF22D9KPT 9HF22D9KPT J1108EDSE-DJ-F J1108EDSE-DJ-F J1108BFSE-DJ-F J1108BDSE-DJ-F H5TQ2G83AFR 9GF22D9KPT 9HF22D9KPT H5TQ1G83AFP G7C Timing Voltage DIMM socket support (Optional) A* B* 7 - • • 7 - • • - 1.35V(low voltage) • • - 1.35V(low voltage) • • 7 1.5V • • 7 1.5V • • 7 1.5V • • 7 - • • 7 - • • - - • • ASUS F1A75-I DELUXE 1-13