Ga-p35c-ds3r

[Gazjoe]

Re: Ga-p35c-ds3r

changing Vcore value up or down has no real effect on the IBT GFlops. weird!

[Lsdmeasap]

Re: Ga-p35c-ds3r

FSB/MCH Voltage will, as will tRD and memory multi/strap choice

[Chike]

Re: Ga-p35c-ds3r

The thing is his memory performance are better than those I had when still getting 2 GFlops more at the same CPU clock.

[Lsdmeasap]

Re: Ga-p35c-ds3r

Could be OS differences or background programs/services causing that. Or maybe your memories have different IC's in them, so they score differently?

[Chike]

Re: Ga-p35c-ds3r

Yes, programs/services may have a big impact, I hope it's done in complete idle.
Memory performance seems to make very little difference with IBT.

[Lsdmeasap]

Re: Ga-p35c-ds3r

Ya, I think you are right about memory, I just thought I should mention it in case it was part of the issue.

Could just be the CPU's themselves not working the same. You guys both have VT enabled and HPET 32/64, on the same type of OS?

[Chike]

Re: Ga-p35c-ds3r

I run XP Home myself, but Ken429 has the same processor and Windows 7 x64, and his GFlops are about as expected.
The only differences are the chipset and memory type, which I don't think should make that much of a difference.

[Lsdmeasap]

Re: Ga-p35c-ds3r

Ahh! I thought you had the same chipset and memory, well that could make all the difference then due to how the NB passes information during these tests back and forth from the memory to CPU and back. And the OS and architecture 32/64 used as well.

[Gazjoe]

Re: Ga-p35c-ds3r

I am running Windows 7 32 bit, I have VT and HPET 32 running. I always run IBT once the system is idle, weird thing yesterday I hit 20.69 GFlops @ 1.45Vcore and the continued to increase the Vcore and run IBT. However, now if I go back to that voltage I can't get above 19.5 GFlops again...

[Gazjoe]

Re: Ga-p35c-ds3r

I am now having problems passing OCCT Linpack test, should I worry about this test or not?

[Chike]

Re: Ga-p35c-ds3r

I guess it can be a concern. Does IBT at max stress level pass?

[Gazjoe]

Re: Ga-p35c-ds3r

It won't let me run at Max level as I only have 32 bit OS. Have just tried @ 1997 and it failed on 4th test.

[Chike]

Re: Ga-p35c-ds3r

Should let you run maximum as it uses all available memory, as much as there is, but not high or very high.
Try +-0.2v FSB OverVoltage and/or more vcore see if that help, if not maybe this CPU is not meant for that much OC, try to drop 5-10MHz from FSB.

[Gazjoe]

Re: Ga-p35c-ds3r

I have solved the problem by relaxing the timings to 6-7-7-18 from 6-6-7-18. It now passes IBT @ 1998MB and OCCT Linpack infinite test for 1/2 hour, that will be fine for me.

[Lsdmeasap]

Re: Ga-p35c-ds3r

Great to hear you solved this, that change in tRCD wont have any effect on performance really so it should be fine