Power Supply Query

[James Orme]

Possibly clutching at straws here.

My PC runs very well in games. About 80 FPS in most games maxed out on a 2k display.

The issue is that I get constant (3 times a minute or more) of what act like almost mini lockups.

On GPU monitor I see that when the lock ups happen, GPU load drops down to about 60% on both Titans (or just one of the Titan's) or sometimes even lower, and the FPS according to Fraps goes to hits 40 or lower.

What I see, as I say above, is like the pc completely locks up for half a second.

I have tried so many things, so now I am asking:

My corsair 1200watt power supply states that it needs a 15A AC input.

I am not using the standard lead that came with the Power supply (I am really not sure what happened to it).

I am just using a bog standard lead. Does anyone think that could cause any issues? Such as the above? Or just not help.

Again clutching at straws.

Regards,
James Orme

 

[helpstar]

your lead is fine, that´s not the problem

Mainboard BIOS is up to date? flash in BIOS, not in Windows!

all power connectors are connected? Mainboard 8pin ATX12V too, not just 4pin?

drivers ar up to date? nvidia Homepage

temperatures?
prime95 (smallfft) + coretemp
furmark (burnin)
install memtest86+ on a USB drive and boot from it
ssd/hdd testing with manufacturer tool

3dmark (firestrike): post the link after benchmark


edit: the unselect button is usually just where the solution button was, but not colored 😉

 

[James Orme]

your lead is fine, that´s not the problem

Mainboard BIOS is up to date? flash in BIOS, not in Windows!

all power connectors are connected? Mainboard 8pin ATX12V too, not just 4pin?

drivers ar up to date? nvidia Homepage

temperatures?
prime95 (smallfft) + coretemp
furmark (burnin)
install memtest86+ on a USB drive and boot from it
ssd/hdd testing with manufacturer tool

3dmark (firestrike): post the link after benchmark

FFS if moderator can un-select as best answer (as pressed wrong button on email -____-)

Nope tried most of those. Will try a few more (prime 95 and 3dmark.)

Temperatures on the benchmarks I tried were all fine.

Both GPU's at 83 max

CPU about 60.

There is something seriously weird with that machine.

 

[helpstar]

adjust the energy profile in Windows to maximum power

which BIOS version?

 

[James Orme]

your lead is fine, that´s not the problem

Mainboard BIOS is up to date? flash in BIOS, not in Windows!

all power connectors are connected? Mainboard 8pin ATX12V too, not just 4pin?

drivers ar up to date? nvidia Homepage

temperatures?
prime95 (smallfft) + coretemp
furmark (burnin)
install memtest86+ on a USB drive and boot from it
ssd/hdd testing with manufacturer tool

3dmark (firestrike): post the link after benchmark


edit: the unselect button is usually just where the solution button was, but not colored 😉

adjust the energy profile in Windows to maximum power

which BIOS version?

That is one of the first things I do when I build an OS.

 

[helpstar]

3dmark result link please

 

[James Orme]

3dmark result link please

Sorry didn't get a chance to do it last night. I will do it ASAP and post link.

Started a new thread as I may have made some headway. Could be the second gpu. Forcing up the minimum voltage on the GPUs seems to be helping. A little.

http://www.tomshardware.co.uk/answers/id-2382762/constant-mini-lockups-fps-drops-gpu-usuage-drops-high-spec-machine-sli-titan.html

 

[James Orme]

How did I miss that button? haha. I must have had a very fuzzy head yesterday...

 

[James Orme]

http://imgur.com/yfOtprw,uoVqNiT

Seems a little low? :O

 

[James Orme]

http://imgur.com/6BpmeEa

Woops above was 4K results.

This is standard firestrike... Still a little low for two titans?

 

[James Orme]

Ok that was the extreme one. I will now do extreme and standard on both cards individually and then Standard on sli (because I am an idiot tonight! And probably should have just tried Standard first!)

 

[James Orme]

Right both cards got practically the same score when they were individually in.

I noticed also that they both have FPS drop still in Crysis and titanfall. (Suggesting that gpus are fine... Possibly ) Tomorrow I will upload the rest of my firestrike scores for individual cards.

I need another rig to test. Them in.

 

[James Orme]

ISSUE RESOLVED BY DOWNLOADING A FRESH COPY OF WINDOWS 8.1 AND FRESH INSTALLING THE GAMES.

This may help people who experience similar issues in the future.

Helpstar quote this and I'll award you Best Answer for your hard work.

 

[helpstar]

Didn´t you install fresh in the first place? Was it Win8 without updates?

Don´t think it´s over yet, but hopefully it will work out.

 

[James Orme]

Didn´t you install fresh in the first place? Was it Win8 without updates?

Don´t think it´s over yet, but hopefully it will work out.

This was 2 weeks ago I did this fresh install and it has been perfect since. (I waited before shouting "YAY IT's FIXED 😀" and then realizing no it hasn't and committing suicide).

It was a desperate last step. Downloaded fresh Windows 8.1 iso, re-downloaded games again, and everything else from fresh.

It has been perfect. I don't understand. I still hold a bit of your skepticism about it not being over, but for now I am just trying to enjoy the fact it is working haha.