Asus M4A785D-M PRO User Manual - Page 21
Memory configurations - windows 8
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1.7.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC/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 do any of the following: U�s�e��a��m�a�x�i�m�u�m��o��f �3�G�B��s�y�s�te�m���m�e�m��o�r�y�i�f �y�o�u�a�r�e��u�s�in�g��a�3�2�-�b�i�t �W�i�n�d�o�w��s® OS. - Install a 64-bit �W�i�nd�o�w��s® OS when 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. The motherboard supports up to 16GB memory modules on Windows® XP Professional x64 and Vista x64 editions. You may install a maximum of 4 GB DIMMs on each slot. M4A785D-M PRO Motherboard Qualified Vendors Lists (QVL) DDR2-1200MHz capability Vendor Part No. Size SS/ DS Chip Brand Chip No. Kingston KHX96002K2/2G OCZ OCZ2FX12002GK TEAM TXDD1024M1300HC6 winchip 64A0TMTHE8G17C 2048MB(Kit of 2) DS N/A 2048MB(Kit of 2) DS N/A 2048MB(Kit of 2) DS Heat-Sink Package 2048MB(Kit of 2) DS N/A Heat-SinkPackage Heat-SinkPackage Heat-SinkPackage Heat-SinkPackage Timing DIMM (BIOS) 5-5-5-15 5-5-5-18 6-6-6-18 Voltage 2.2V 2.1 - 2.3 V 2.35V~2.45V DIMM Support A* B* C DDR2-1066 MHz capability Vendor Part No. Size SS/ Chip DS Brand Chip No. A-Data Apacer Apacer Corsair Corsair Crucial Crucial G.SKILL AD21066E002GU 78.0AGBD.9L5 78.AAGBD.9LZ CM2X1024-8500C5 CM2X2048-8500C5D BL12864AA1065.8FE5 CT25664AA1067.16FE1 F2-8500CL5D-2GBPI 4096MB(Kit of 2) 1024MB 2048MB 1024MB 4096MB(kit of 2) 1024MB 2048MB 2048MB(kit of 2) DS N/A SS N/A DS N/A DS Corsair DS N/A SS N/A DS Micron SS N/A Heat-Sink Package Heat-Sink Package Heat-Sink Package Heat-Sink Package Heat-Sink Package Heat-Sink Package 9DJKH D9JKH Heat-Sink Package (continued on the next page) Timing DIMM (BIOS) 5-5-5-15 5-5-5-15 5-5-5-15 5-5-5-15 7-7-7-13 5-5-5-15 Voltage 2.1V 2.1V DIMM Support A* B* C* • • ••• • • • • • • • • •• ASUS M4A785D-M PRO 1-11 E4711_M4A785D-M PRO.indb 11 7/6/09 9:09:48 AM