View Single Post
  #4 (permalink)  
Old 29th April, 2011, 05:05 AM
ThunderRd's Avatar
ThunderRd ThunderRd is offline
Irreverent Query Chairman
 
Join Date: June 2007
Location: NYC native in northern Thailand
Posts: 2,241

I have found that the key setting for memory on this board is getting the right strap, not more voltage. Certain memory speeds at 400, for instance, would not even boot on my board, while others ran fine. I had to do a lot of experimentation with the straps and speeds before I found the one my memory liked, and when I finally found the right one, things fell into place. And I used only a slight voltage bump to do it.

Now, I can't guarantee that you have the same situation, but before giving up try the 266, 333, and 400 straps at all speeds (this means you will try all the different dividers. On ASUS boards I've been most successful with the 333 strap, but others say differently.) I'm assuming that you know how to calculate the dividers. That's very helpful as well, because some dividers are offered on more than one strap, so you can compare how the machine overclocks using the same divider and different straps. Knowing the divider values takes out a lot of the guesswork, and lets you approach the overclocking in an organized way. Unfortunately, ASUS doesn't provide the actual divider values in the BIOS, so you have to work them out.

Just in case you're not familiar with how to calculate them, you could calculate my divider/speed setting like this:

475FSB x 2(DDR) x 8/5 = 1520 (5FSB:8MEM divider)

With a 3:4 divider it would be like this:

475 x 2 x 4/3 = 1267
__________________
#1: Tt Armor, ASUS Maximus Extreme, QX9650@4.1G, 8G Corsair Dominator GT DDR3-2000, Corsair HX1050, H2O-Swiftech, Gigabyte GTX470/Arctic Accelero Xtreme Plus II, Intel 520 SSD, Kingston SSD, 2xRaptor 150G RAID0, Win 7 Pro 64
#2: Tt Shark, ASUS P5Q Pro Turbo, Q6600@3.8G, 4G HyperX-1600, Corsair HX850, CoolerMaster V10, 2xASUS 9600GT, 2xRaptor 74G RAID0, OCZ Vertex 4 SSD, Gentoo/siduction Linux [64-bit]
#3, #4: Opteron 170@2.75G nude, A8N-SLI Deluxe, Gentoo

AOA Folding @HomeOur sister site: www.gamersonlinux.com

Last edited by ThunderRd; 29th April, 2011 at 05:07 AM.
Reply With Quote