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ragingclue
02-17-2009, 06:25 AM
SOLVED

Onboard LAN Controller was conflicting with the interrupt of another device. I thought resource conflicts were a thing of the past (anyone here remember ISA??).... Don't I feel like an idiot now....

Like the title states, I'm having problems with the Intel Burn Test. I'm at a seemingly stable 4.01 GHz on my e8400 E0. I was lowering the voltages to see the lowest I could get for the 4GHz mark. Everything was fine at 1.3 vCore and 445 FSB. All benches run fine, so do games maxed out. But, I noticed during IBT that the CPU load wasn't going above 70%, and temps barely even hit 50C. Now, I notice if I up the voltage to where it has previously been fine, the percentage increases, but not to 100% before it's just too much voltage for me to feel comfortable with on air. With IBT running the CPU at 70%, it still posts stable results at the end of the test.

I've run the same test on this computer numerous times before, at many different clock speeds and voltages, and it's always been hovering around 98%. I don't know if it matters, but my mobo is a BlackOps P05 BIOS, RAM is 2x2GB OCZ Special Ops Urban Elite DDR3 1600 (1:3.2 1425MHz) @ 1.91V. OS is Vista Home Prem 64bit.

The only programs running while I perform this test are RealTemp and CPUZ.

I reformatted. It didn't work. Something is hogging 30-40% of my processor, and it's not showing up in the "processes" tab in the task manager. So, 40% of my CPU is busy but doing nothing?! How is this possible? Is this indicative of a hardware failure?

Falkentyne
02-17-2009, 01:02 PM
Like the title states, I'm having problems with the Intel Burn Test. I'm at a seemingly stable 4.01 GHz on my e8400 E0. I was lowering the voltages to see the lowest I could get for the 4GHz mark. Everything was fine at 1.3 vCore and 445 FSB. All benches run fine, so do games maxed out. But, I noticed during IBT that the CPU load wasn't going above 70%, and temps barely even hit 50C. Now, I notice if I up the voltage to where it has previously been fine, the percentage increases, but not to 100% before it's just too much voltage for me to feel comfortable with on air. With IBT running the CPU at 70%, it still posts stable results at the end of the test.

I've run the same test on this computer numerous times before, at many different clock speeds and voltages, and it's always been hovering around 98%. I don't know if it matters, but my mobo is a BlackOps P05 BIOS, RAM is 2x2GB OCZ Special Ops Urban Elite DDR3 1600 (1:3.2 1425MHz) @ 1.91V. OS is Vista Home Prem 64bit.

The only programs running while I perform this test are RealTemp and CPUZ.

I don't know either.
For some reason, Prime95 (quad threads) sometimes gives around 74% load according to realtemp, and the same with IBT and other times around 99% load. It seems like it gives around 74% when I overclock and 99% when I'm at stock, in BOTH IBT and prime95. I can't explain that at all...

*edit* Just tested this again.
At 3 ghz, prime95 showed 99% in Realtemp.
At 4 ghz, showed 74%.

But in task manager, it showed 99% usage.

Perhaps ask unclewebb about this?

sabe
02-17-2009, 06:35 PM
IBT (or LinX) should have a column for gigaflops, any drastic change in this when your CPU load is not reported as 100%?

ragingclue
02-18-2009, 06:50 AM
IBT (or LinX) should have a column for gigaflops, any drastic change in this when your CPU load is not reported as 100%?

I have the latest version of the software, not sure exactly the numeric designation of it, but it only shows one column of data, and all numbers are identical, through 5, 10, and 20 tests.

When I ran the test at 400FSB (3.6GHz), and 421FSB (3.8GHz), the CPU was over 98% and relatively hot (69C I believe). But now, at 445FSB (4.01GHz), IBT is only showing 70% CPU utilization and barely 50C temps.

i found nemo
02-18-2009, 11:45 AM
re-format.

ragingclue
02-18-2009, 06:46 PM
I reformatted. It didn't work. Something is hogging 30-40% of my processor, and it's not showing up in the "processes" tab in the task manager. So, 40% of my CPU is busy but doing nothing?! How is this possible? Is this indicative of a hardware failure?

i found nemo
02-18-2009, 07:03 PM
do u have the hd audio enabled for ur card? i know my 3650 with that enabled on the card took up 40% of my cpu at all times

ragingclue
02-18-2009, 07:07 PM
do u have the hd audio enabled for ur card? i know my 3650 with that enabled on the card took up 40% of my cpu at all times

Yes that is enabled. Looks like hardware interrupts and Deferred Procedure Calls are what's killing me.

Falkentyne
02-18-2009, 07:38 PM
You said that when you lower the FSB to 445, then it doesn't happen, right?

This is most likely a problem with something with realtemp itself. Because I have 99% cpu usage in prime95 at 3 ghz, 81% at 3.71 ghz and 76% at 4 ghz.
That's definitely not a problem with the CPU...and nothing else is running.
99% idle before running prime.

Task manager reports full cpu usage by prime.

ragingclue
02-18-2009, 07:40 PM
My Hardware Interrupts are taking up 30% of my CPU. Yet, in the Device Manager, everything looks ok.