CPU Throttling

[T4rd]

I know this should prolly go into the OC'ing and cooling forum, but I'll bet more of you guys have seen it than anyone else.

I've been folding at 3.9 GHz (20x 195 BLCK) on my 920 for 4-5 months now (since I got this D0 920 from Dookey) and for the past month or so, I keep seeing my CPU throttle the multiplier down to 12x which puts it around 2.34 GHz. It seems every 5-10 mins I look over at my temp/clock gadget, I see it throttled down.

Now my temps are a bit high. Right now it's sitting around 85°C on its hottest core. But it shouldn't throttle until it gets up to 100°C, right? I've never seen the Tj Max get below 13 (87°C core temp). I've tried disabling Speedstep tech in the BIOS to no avail (didn't think it'd work, but worth a shot). All the threads stay maxed out, so it should be down clocking anyways. When it throttles, the temp only drops to around 70°C.

Just wondering if maybe I'm missing something. I've switched mobos around the time it started (I think, it might have been doing it before and I didn't notice) and thought maybe I missed a setting somewhere. I think I need to ditch this V8 cooler in favor of a H50/70. If someone would buy my case in the FS forum, I would get one ASAP. It also doesn't help that my rig is in the basement where there's no ventilation and my 2 folding machines (mostly the 3x GTX 285s) keep it around 80°+F down here.

Thanks for any help!

 

[DooKey]

From my understanding the P6T has a known bug that causes the downclocking. I'll see if I can find the fix.

 

[Zero82z]

Disable Speedstep/EIST, C1E, and the CPU TM function in your motherboard BIOS. That should prevent any throttling from occurring unless the CPU actually reaches 100C, unless the motherboard actually does have a bug. You could also try disabling Turbo Mode if you haven't already.

 

[T4rd]

Hmm, first I've heard of a bug like that. I know my P6T Deluxe v1 is exactly the same as your P6TD Deluxe except the P6TD Deluxe doesn't have the on board SAS controller w/ 2 extra SATA ports and a FDD port like mine does.

So have you experienced this too? Thanks again!

 

[DooKey]

Check out this thread. I'm wondering if this is the problem.

http://hardforum.com/showthread.php?t=1417780

 

[lehmann]

Check out this thread. I'm wondering if this is the problem.

http://hardforum.com/showthread.php?t=1417780

i know i set mine soo nothing slows down also have a P6T standard i run around 85c also though i have never had a problem.

 

[nitrobass24]

In your windows Power settings Make sure you are set to high performance, and then in advanced options change the minimum state to 100%.

 

[T4rd]

In your windows Power settings Make sure you are set to high performance, and then in advanced options change the minimum state to 100%.

I think this might have done it. I just now got back to my PC (last post was from the dinner table , wife hates that) and went for the easiest solution first. I had my power plan on "balanced" and the minimum state was set to 5%. It also had my cooling on "passive", is that supposed to control the CPU fan (I know it can't control mine, it has its own control knob)? I went ahead and put it on "active" anyways though.

I'll disable all the other stuff in the BIOS when I boot up soon though. I'm about to tear my rig apart to switch out the PSU. I got that $55 1KW BFG PSU in the [H]otdeals to cover down for my 850w while it's away for RMA due to a rattling fan. So I'm going to be spending the next 2-3 hours re-wiring my case to make it pretty again . Hopefully with this one being modular, it won't take as long to route the cables and cut down on hiding unnecessary cables.

I'll post back results.

Thanks everyone!

Edit: Nope, just saw it throttle right after I posted this . I'll try the BIOS stuff when I get it re-built. Then I'll run that utility Dookey linked to for testing. Thanks, Dookey!