Prime95 Fails in 2 minute now.

[ShawnTRD]

435 X 8 was good for at less 2 hours. But now I'm a trying 445 and fails in 2 munutes.
Been pushing my OC to get 450 X 8 with a little over 1066 on my ram (if G.Skill can take it). Real Temp 3.0 is hitting 63c under Prime95. And NB Temp is getting to about 44c. So am I pushing it to far? What do you suggest with my settiings?

http://i223.photobucket.com/albums/dd247/ShawnTRD/OCing/DSC00873.jpg
http://i223.photobucket.com/albums/dd247/ShawnTRD/OCing/DSC00874.jpg
http://i223.photobucket.com/albums/dd247/ShawnTRD/OCing/DSC00875.jpg
http://i223.photobucket.com/albums/dd247/ShawnTRD/OCing/DSC00876.jpg
http://i223.photobucket.com/albums/dd247/ShawnTRD/OCing/DSC00877.jpg

[Leeghoofd]

Which prime fails under 2 Minutes ? Small , Large, Blend ?

PCI-E back to 100, Disable static read control, set clock twister to AUTO, leave transaction booster alone till you first get the CPU stable... also loosen TRFC to 55... Have you checked the Vdimm and co with a DMM ? I recall my board seriously undervolted each setting... and my board rev had serious issues with Loadline calibration, had to leave that off...

[ShawnTRD]

Blend

[phsinc1]

Set manually your Northbridge voltage to 1.40v and try

[leo27]

i had a problem with the rampage formula Bios 803 where it wouldn't set the performance level correctly and as such wouldn't let me overclock my memory.

This is fixed in bios 902 so i recommend you flash to the 902 rampage formula bios instead of 803.

[64dragon]

first i'd lower termination voltage, recommendation is less than 1.45v so you don't kill the cpu like Anandtech http://www.anandtech.com/weblog/showpost.aspx?i=428

also, i'd increase PL till you get the chip stable
might need to redo the gtl's too

here is the guide i follow to test stability, got it from jcool
1. See if your CPU can handle the Mhz by running SmallFFT test. If it fails here, it will need more Vcore OR better cooling OR it simply can't handle the clock speed.
2. Run LargeFFT test. Depending on which test fails, you usually have to increase/modify the following values:

1024 – VTT or vNB
896, 448 – vNB
768, 512, 332 - VTT

VTT is the same thing as Termination voltage

[ShawnTRD]

thanks guys, I'll work with that info.

[In-Fluence]

2. Run LargeFFT test. Depending on which test fails, you usually have to increase/modify the following values:

1024 – VTT or vNB
896, 448 – vNB
768, 512, 332 - VTT


Interesting, I never thought those FFT values would relate so specifically to particular voltages, is this from your experience or is it quite widely known?
(I'm not saying you're wrong btw :))