Maximum PC

My Intel i5 processor is running at 100% at idle on one core and the other core is running flat. How do I fix this problem?

Open up Task Manager and find out which process that's not System Idle is using the most CPU and figure out what that is.

Deferred procedure calls and interrupted requests. This is a brand new install and drive.

Okay. That doesn't answer the question. Or it does, and it's one of your hardware.

I thought maybe it was the video card driver so I installed the latest greatest but no change. Can a corrupt operating system file or software install cause such a thing. I might try installing Win7 on another drive just to see if it repeats.

Maybe, but if it was corrupt, it would be the scheduler, and it'd probably do something haphazardly, like a random core is 100%, or things are going out of whack. You could try reinstalling or doing a repair install. Or maybe run in safe mode, and see if something is still hogging the CPU.

EDIT: Or it may not be the scheduler. Just thinking out loud.

Either way, you want to try to limit your variables here. So a more thoughtful approach would be:

• Try a repair install first
• If it still happens, run in Safe Mode, so just the bare minimum loads.
• If it goes away, we know it's one of your drivers.
  
  • Reinstall Wnidows completely, make sure your CPU is still not being kept at 100%.
  • Install drivers one at a time until the problem happens.
• If it still happens, then it's hardware, somewhere.
  
  • Run the computer with bare minimal hardware configuration. So CPU, 1 stick of RAM, and hard drive (you can use the CPU's iGPU).
  • If it goes away, then if you had a video card, we can put blame on that, however, I'd also put RAM as suspect as well, unless you ran MemTest and it came back fine.
  • If it still happens, I would replace the motherboard. A bad CPU is kind of like winning the lottery.

Will do tonight and report back later. So glad my files are backed up

Well I decided to take the fan off and clean the cpu contacts and ram contacts with pure Alcohol. I also cleaned the video card contacts as well. Put it all back together and she's running fine now. BTW, with the stock cooler I'm running at 60-63 degrees C. Is this okay? Seems a little hot for idle.

Temps lowered to upper 30's. Installed Hyper 212 Plus in Pull only config. Not Push. Screw what everybody else is doing by pushing. If pull is good for car radiators its good for this rig.

Just out of curiosity on the push vs. pull I found this http://martinsliquidlab.i4memory.com/Ra ... eview.html

What they basically said is:

My fan runs at 1940 rpm but even so it should not make a difference...push or pull...with the same air temps going across the fins. If it did, I think GM would have fixed that a looooooong time ago on cars

Well cars it's a different matter. On a front mounted engine, 10 times out of 10, the radiator is up front because it makes sense. On top of shorter coolant travel, when the car's moving, it's pushing air against the radiator. Having a fan in a push configuration doesn't make sense because:

• If it was pushing from the inside out, it would be blowing air against the air coming against the car as it's moving.
• If it was pushing from the outside in, this presents two problems
  
  • The fan is now a hazard because now you need to protect it against someone stupid enough or kids that may want to put their hand past the front grille.
  • The radiator basically acts like a barrier/filter against things like bugs, rocks, debris, etc.

Having it in a pull configuration on the inside works because now you're going with airflow, the air you wanted to use to cool the radiator has already passed through it, the radiator acts like a basic filter against coarse objects, and it can still create airflow when the car is stopped.

On a rear engine car... well now you have other issues to deal with.

I don't think you are correct about fans on cars pushing air through the radiator, there have been quite a few over the years that have done it. even Mercedes, and there are dual fan aftermarket fans available as well. they are just electric and not belt driven like a standard fan that is mounted on the engine