Originally Posted by Nomad8459
Been having a play around with the overvoltage jumper, so I set it to the overvoltage position, pins 1 and 2.
Interestingly, AIDA 64 is now reporting CPU VID, where as before it wasn't.
Thing is, whatever I set in BIOS, the VID is reported as being exactly 0.1V lower, so for example if I set 1.6V, then the VID is reported as being 1.5V.
So far no luck with extra Mhz on this CPU however, I have pushed it to reported 1.47V under load and still not burn test stable above 4ghz.
Going to try and turn cool and quiet off next.
Ok, because the chip is not BSODing when it is above 4Ghz, there is only one thing that i can deduce, and it is this, Intel Burn Test is well known for maxing out the CPU and getting it hotter than any other software, included, in my experience, Prime 95, I find that even a four hour run of Prime 95 will result in temperatures around 5-7C lower than Intel Burn Test produces when running the tests higher than standard.
The CPU seems to fail Intel Burn Test when my cores exceed 55C so I think I can safely assume it is the temperatures holding it back.
I really am now assuming that it is the temperatures that are holding me back and not the chip itself.
So everything that you read about Phenoms is certainly true, do not let core temp exceed 55C or it becomes unstable, 3000Mhz+ on the CPU/NB is perfectly possible if your RAM can keep up with it, HT link betwwen 2000 and 2200 gives best stability, 4Ghz is fairly easy to achieve even with minimal voltage increases on air but pushing past probably takes water cooling, and to be honest for the extra voltage, money and hassle, I honestly do not believe that it is worth it, to gain maybe 200 or 400 mhz more at maximum.
So for me and my 1090T, it is cool and quiet enabled, 4Ghz - CPU, 3000Mhz - CPU/NB and 2200Mhz - HT link all the way.
Hope all this helps somebody.