Asus P8H61 R2.0 P8H61 PLUS R2.0 User's Manual - Page 27

1.7.2 Memory configurations You may install 1GB, 2GB, 4GB, and 8GB 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. • According to Intel CPU specification, DIMM voltage below 1.65V is recommended to protect the CPU. • 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 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 on the motherboard. • This motherboard does not support DIMMs made up of 512Mb (64MB) 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. 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. P8H61 R2.0 Series Motherboard Qualified Vendors Lists (QVL) DDR3-2400 MHz capability Vendors CORSAIR G.SKILL G.SKILL GEIL KINGMAX Transcend Transcend Transcend PATRIOT Part No. Size SS/ DS CMGTX8(XMP) 8GB(2GB x 4) SS F3-19200CL11Q-16GBZHD(XMP1.3) 16GB(4GB x 4) DS F3-19200CL9D-4GBPIS(XMP) 4GB(2x 2GB) DS GET34GB2400C9DC(XMP) 2GB DS FLLE88F-C8KKAA HAIS(XMP) 2GB SS TX2400KLU-4GK(427652)(XMP) 4GB(2 x 2GB) SS TX2400KLU-4GK (381850)(XMP) 4GB(2x 2GB) SS TX2400KLU-4GK(374243)(XMP) 4GB(2x 2GB) DS PVV34G2400C9K(XMP) 4GB(2x 2GB) DS Chip Brand - - Chip NO. Timing Voltage - 10-12-10-27 1.65V - 11-11-11-31 1.65V - 9-11-9-28 1.65V - 9-11-9-27 1.65V - 10-11-10-30 1.8V - - 1.65V - 9 1.65V - 9 1.65V - 9-11-9-27 1.65V DIMM socket support (Optional) 1 DIMM 2 DIMMs • • • • • • • • • • • • • • • • • • • DDR3 1600 MHz and higher memory frequency is supported by Intel® 3rd generation processors. • Due to the CPU behavior, DDR3 2133/1866 memory module will run at DDR3 2000/1800 MHz frequency. Chapter 1: Product introduction 1-17