PC slowing down

Author
Discussion

mikef

Original Poster:

4,823 posts

250 months

Saturday 19th September 2015
quotequote all
Yep, that's a good idea. It will have to wait a week though until I'm back from a trip. This thread will be resumed!

red_slr

17,122 posts

188 months

Saturday 19th September 2015
quotequote all
Also what PSU are you running and how old is it?

mikef

Original Poster:

4,823 posts

250 months

Saturday 19th September 2015
quotequote all
860W Corsair AX860i Digital, Full Modular, 80PLUS Platinum, 1x120mm Fan, ATX v2.31

4 months old; has onboard diagnostics that connect to a USB header, can track exactly what it's doing

red_slr

17,122 posts

188 months

Saturday 19th September 2015
quotequote all
Sounds ok try the bare bones first

mikef

Original Poster:

4,823 posts

250 months

Monday 28th September 2015
quotequote all
Thanks all for your suggestions while I've been away, now back on the case

The BIOS is now updated to the latest version (no change in behaviours) and I've disabled both EIST and CPU C-States in BIOS so that speedstep shouldn't kick in

I've also pulled out hardware so it's back to bare bones (although I need to leave the graphics card in, for obvious reasons)

I'm logging CPU usage, CPU temps and power draw

One thing I can tie this down to is going to sleep; have task manager open showing CPU speed as 3.57 GHz. Screen goes black and I immediately wake it up by pressing a key and the CPU speed is now 0.40 GHz and haven't found a way to speed it up again

That's happening even if I send it to sleep from the Power menu...

red_slr

17,122 posts

188 months

Monday 28th September 2015
quotequote all
disable sleep.. problem solved smile

mikef

Original Poster:

4,823 posts

250 months

Monday 28th September 2015
quotequote all
Or just keep working on this box smile

Zad

12,695 posts

235 months

Tuesday 29th September 2015
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I know that activating Hibernate in this Win 10 installation caused various odd problems when in Sleep mode.

Pachydermus

973 posts

111 months

Tuesday 29th September 2015
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Is the CPU fan working when it comes out of sleep mode?

mikef

Original Poster:

4,823 posts

250 months

Tuesday 29th September 2015
quotequote all
Pachydermus said:
Is the CPU fan working when it comes out of sleep mode?
Yes, both CPU and CPU Aux (push and pull) fans are showing as working in SpeedFan, at normal operating speed

Pachydermus

973 posts

111 months

Wednesday 30th September 2015
quotequote all
I'd go with Deckster's suggestion then to boot into a different o/s (linux or win7) and see if sleeping that has the same problem.

mikef

Original Poster:

4,823 posts

250 months

Wednesday 30th September 2015
quotequote all
Easier said than done; I've put a Linux distro on a USB drive and UEFI secure boot won't let me start the system off that

Pachydermus

973 posts

111 months

Wednesday 30th September 2015
quotequote all
You should be able to disable that in bios.

anonymous-user

53 months

Wednesday 30th September 2015
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Buy a Mac.

mikef

Original Poster:

4,823 posts

250 months

Wednesday 30th September 2015
quotequote all
I have a Mac; dual Xeon, 128GB, PCIe SSD, R9-280X smile

I'd like to figure this issue out though

mikef

Original Poster:

4,823 posts

250 months

Wednesday 30th September 2015
quotequote all
Missed that one, the chipset drivers, next on the list to try.

I know from experience that getting a Windows install where I want it takes a couple of days work, I don't want to go through that and find it's still the same; it's still an option if all else fails

mikef

Original Poster:

4,823 posts

250 months

Wednesday 30th September 2015
quotequote all
I honestly can't tie it back to any specific hardware change, and I've been gradually moving work from a couple of other dev boxes onto this one

The last major hardware change was changing two GTX580s for a GTX970

anonymous-user

53 months

Sunday 4th October 2015
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In all honesty if you are spending as long on this as you are then surely the next things to consider are new Hard Drive and new OS ?
You have considerable patience IMHO but those must be now on the list ?

mikef

Original Poster:

4,823 posts

250 months

Sunday 4th October 2015
quotequote all
it's not so much patience as keep having to travel away before achieving resolution

I did follow TN's advice on Friday and update the chipset drivers; I've had to travel out to Silicon Valley Saturday morning so not really had time to prove that the PC will stay up long term

I could clone the OS to another disk and install Win 8 again from DVD onto a clean desk, those are on the list if it's still misbehaving when I get back

anonymous-user

53 months

Sunday 4th October 2015
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I don't know if you are running Windows 8 or 8.1 but if it was me I would do a new install of 8 and IMMEDIATELY upgrade it to 8.1 (you don't have to do zillions of updates to do that if necessary I can show how)
I just think without that you wont know.
Then again it could be a hidden faulty board issue I don't suppose any of the caps look bulging ?
Just a thought