Quote Originally Posted by ci2kla View Post
Are you trying to say I have to stress everything at the same time to make sure the FSB is stable or not? I'm not sure what you mean...
Just done some extensive test. The reason why I choose IBT as the main testing tool is because it is the fastest tool to find out if the system is stable or not (of course not for 7/24). Calculation errors exists not only CPU but also can be other components related...for example...NB GTL vRef

Last Progress so far: 1.2v vCore, 1.32v VTT CPU GTLs all on auto, NB GTLs +70mv, IBT Test = Hard Lock / Reboot
With CPU GTLs slight fine tune, IBT Test 80% correctness, ORTHOS Large FFTs HARD LOCK after 1 hr 47 mins

Will start to try getting 485FSB stable after I'm off and will post up more if any progress made. Cheers
Yes i do. IBT is good for your CPU stability and the first step to a stable overclock.

I use 1.22V for VTT as you can see in my sig for FSB 465MHz with CPU GTL 0.63X and NB GTL 0.67X. I can get it IBT stable with 1.16V. Prime95 Large FFT's will fail within minutes with the VTT at 1.16V.
You might need a little bit more voltage on the NB to pass Prime95 Large FFT's than you use for IBT.
To find the right Memory voltage i use MemTest86+ V2.11. If i can pass MemTest86+ V2.11 without errors i have no problems at all with my Memory stability.
The reason that i stress everything on my system is to find the right VTT to keep everything stable.

This may look insane. We are at Xtreme Systems. Why not do extreme stability tests.

Try the latest BIOS for your RE. The latest one for my RF fixed the problem with the VTT. Earlier BIOSes didn't allow me to raise the VTT higher than 1.16V without losing stability in IBT.
The ASUS Tech Support fixed the problem for the RF with BIOS 0701, they released a new BIOS for the RE at the same time. The BIOSes where released a few days after they have tested a system similar like mine to find out why i couldn't raise the VTT without losing stability. I don't know what they did with that BIOS but now i can get it stable with higher VTT.

I have to wait now for my new memory to arrive to see if i can get it stable at higher FSB. The 2 X 2 Giga OCZ Reaper HPC PC2-8500 can't go over 1120MHz with 5-5-5-15 timings.