12g on P6X58D: Do I need to buy one 12g set or is two sets of 6g OK?

I'm having problems getting 6 2G sticks to work on my GA-X58-UD4P Gigabyte Mobo to work at full speed (1600) and i7 920 OC'ed. I can get the 6 2G sticks to work at 1066. I read on an Intel Design Manual that the CPU was only designed to support 1066 (but may be able to support up to 1333)....of course I can get my i7 920 OC'ed at 3.2G and my mem running at 1600 wih good stability. Also, I read somewhere that 3 Dimms is preferrable over 6 Dimms due to the memory controller limitations on the i7 920. I would love to get the 3 Dimm 12G Kingston package, but it is priced quite high now ($1,200).

I ended up going with two sets of this

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


The reason lower latency. I'll report on the results after I build the new box next week

Orangecat you may have a problem. I have the same board and someone posted that you cannot run 2 channels (and by channel I mean 3x2g and 3x2g) of 1600... it may default to 1333 on these boards. Check the manual as I have not verified this for myself but if that is the case and you desire 1600 your going to need to return them and go with 3x4gig. The person said the manual blamed an Intel standard or coding or something of the sort and it wasnt an Asus issue.

Matt,

Hola fellow p6x58d user!

I had the same concern but it seems to be running OK at ~1600 with all 12GB and the 920 OC'd to 3.8.

Right now I have all 12 GB running at ~1600 7-9-9-24 which is abount what I was hoping for. I mean, I was expecting it to be a little slower (timing or clock speed) with 12GB than 6 GB. 1.600v on the dramm

prime95 stable at 64 degrees C. Idle at 32C.


It did default to something much less but there is tons of info out there about how to OC these things.

orangecat.........I was wondering how your 12gb of Mush memory turned out with your board & are you happy with the colors with that board? I'd love to see your build cause I'm up in the air with the memory but I will have the same MO & i7 920 too

Cables are kinda messy. The board looks good and seems well made. Very solid. I've built several machines over the years and asus has always been good to me. Case is a Lian Le with two 135mm exhaust fans on the top. I'm happy with rig. I'm not really into getting the maximum OC. I'm looking more to get something stable that I can leave it at all the time.