ASUS M4A79 Deluxe Motherboard & DDR2 800/1066 Memory Compatibility/Limitation?

"What it is saying that DDR2 800 and 667 is supported for all 4 DIMM slots. If you use DDR 1066, AMD specifies that DDR2 1066 is specified to work with only 1 DIMM per Channel (2 DIMM slots). If you add more memory or faster memory, then you are going outside the processor manufacturer's specifications (I believe O.C. here stands for ""Over Clocking"").

There is mention just under the memory support statement ""Refer to www.asus.com for the memory QVL (Qualified Vendors Lists)."" This means that Asus has tested specific DIMM modules and have found that they work with this specific motherboard. (Unfortunately, I can't find the QVL for this motherboard on ASUS' website.) The QVL gives information about which DIMM model they used and in which DIMM slots they passed. If a DIMM module is on the AVL as passing and it is greater than 1066 or 1066 with 4 DIMMs populated, then this means ASUS tested it and it works.

So, your assumed limitation is correct if you select memory not on the QVL."

"So u would need 4 of these. As Troggy said, you are correct.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820134863"