Originally Posted by Buck47
That's strange you had to manually set timings and voltage. The OCZ modules you and I both have are EPP modules (which is actually an advertised benefit for the latest nvidia chipsets). EPP allows the motherboard to automatically detect stock RAM voltage and timings. I paid close attention to the BIOS on my initial boot to see if the X48 auto-detected everything (it did for me).
I couldn't find my packaging, so I went to OCZ's website... They say for the 1G stick of our memory, the timings are 5-5-5-15, @ 2.1V. The 2G sticks we I have said the timings should be 5-5-5-18. My mobo set it at 5-5-5-15 @ 1.8V. Did your mobo set your voltage at more than 1.8V?
At this point, I'm not sure the memory was my problem as I was fiddling with other stuff at the same time. I didn't know about the vDroop issue originally, so my voltages were a bit low.
Seems my processor is about average. Some can get to 4G with 1.28-1.29, then the voltages have to be boosted from there on up. With mine, I get to about 3.9G, then the voltages have to be boosted. I had it stable last night @ 4.05G at 1.328, so that's good. I dropped it back to 3.825 for my 24/7 as it runs at 1.27 (cpu-z) and passes prime95 with relatively low temps. I understand once you're past about 3.6 the returns for gaming are diminishing regarding temps and performance.
I see a lot of people think the limit for cpu voltage is about 1.45 volts, I got nowhere near 1.4, so there's still room to play.
When I did have problems, it was the first core. It runs a couple degrees higher than the second, and it was the first to give me round up errors in prime 95. I'll push it more later...
|At any rate - the more relaxed stock timings you set should let you go a bit further...at a lower vCore.
Also make sure you have the following settings disabled:
As far as the ASUS software goes, I wouldn't bother starting it up. It just isn't reliable.
I'm just using the AI suite for temps. It shows my idle at 42 deg, and under load it goes to 62 deg. That's what most people are reporting. The Core Temp 0.97.1 shows the temps 10 degrees higher... I noticed it's the same with some of the posters in the string you linked.
|There is another temperature monitoring app I'd like you to try....RealTemp. Here is a good thread explaining how it works and how it differs from CoreTemp (especially when used with Penryn CPUs).
I'll give it a look...
|One more note...You can also try using a lower multiplier with an increased FSB (ie 8.5 x 480).
Yep. I'll be trying to push the fsb to the max soon, so I'll lower the multiplier. I need to figure out what some of the terms are though before. Like cpu vtt, pll, and the ratios like GBR I think it is? Some people have really dropped their cpu voltage by changing the ratios. Unfortunately, most of that talk comes from guys with the DFI board, and it has more options than the rampage.
I'm happy to know I can run it stable on air at 4.05G though, with reasonably low voltages. It's an amazing processor. I ran 3dMark06 though, and it only bumped the score about 1000 points.
I'll run it @ 3.825G for a while and see how it goes.