Overclock.net › Forums › Components › Power Supplies › PSU Issue? Is my PSU powerful enough?
New Posts  All Forums:Forum Nav:

PSU Issue? Is my PSU powerful enough?

post #1 of 11
Thread Starter 
Hi All,

I recently purchased a new CPU and have been having nothing but problems since. I am starting to question the power supply. Here is my old build:

2500K
Asus P8Z68 DELUXE Gen3 (Gen3 is PCI Express 3.0 ready)
32gb ddr3 ram
Gigabyte 680 GTX (stock oc)
1 ssd, 4hdds, around 6 fans
PSU: Kingwin LZP-550 (550W Platinum, can 'oc' to 650W - as far as I can tell the OC is automatic?)

I purchased a 3770K, which has lower TDP than the 2500k so I assumed I would have no problems. Are my assumptions incorrect?? This is what I am seeing:

Every 5 minutes or so, the Nvidia drivers 'recover' (they are up to date) after my screens blank out. Sometimes i can get into a game/watch a movie and the graphics look fine and I don't have any problems. But eventually the computer freezes up again, and eventually the drivers don't recover and everything locks up. The power doesn't seem to turn off by itself though.

This is what I have tried:

It locks up even if I keep the computer idle and I close most programs. I watch the temps - they idle around 30c for mb and cpu. I have updated the BIOS, video card drivers, ran memtest for 12 hours. GPU-Z shows the video card on PCIExpress 3.0 16x as expected. I have tried turning off Turbo Boost to ensure no Overclocking, and I have also tried disabling the Intel GPU.

The difference in builds:

I only replaced the 2500k with a 3770K, Sandy to Ivy Bridge. Biggest change I would think is the one to PCI Express 3.0. Intel HD 4000 is also different, and Ivy Bridge has a few new technologies I believe.

This is what I suspect:

Either the video card is going bad or the PSU is going bad?? I'm not sure why the PSU would allow me to get into a game and run it for 15 minutes and then other times lock up when I'm not doing anything but browsing. I suppose it could also be a software/driver thing, but seems unlikely, unless I am missing something.

Any ideas? Thanks in advance!!! I might have access to test a more powerful PSU for this build a few days but I am out of luck at the moment.
post #2 of 11
The most likely scenario is that the PSU is problematic and therefore is supplying improper voltage which is causing the computer to freeze up. It would help if you had a spare PSU to throw in there to test it out.

Also, Have you bothered to test your ram?
post #3 of 11
Thread Starter 
Yes, I should be able to test that in the next few days. Just seems weird that it would go bad after installing a new CPU, as I didn't touch the PSU at all. Under "things I tried" I did put that I ran memtest, the memory is good.
post #4 of 11
Quote:
Originally Posted by PeRFeCK View Post

Yes, I should be able to test that in the next few days. Just seems weird that it would go bad after installing a new CPU, as I didn't touch the PSU at all. Under "things I tried" I did put that I ran memtest, the memory is good.

My bad, missed that. wink.gif

It does seem odd that it would, but it's most likely either the PSU or the GPU and based on what you have said, your GPU is fine.
post #5 of 11
PSU should be more than powerful enough, but maybe it's breaking down.
Test it with that other PSU you can use.

Some random stuff that has solved random crashes for me before:
Removing GPU, blowing into the pci-e slot with compressed air.
Reseating the power to the GPU.
Edited by Deluxe - 12/18/12 at 10:22am
post #6 of 11
It's not the PSU.

Do a clean Windows install, see what you get.
post #7 of 11
Thread Starter 
Thanks for the suggestions, I will try installing a new OS and a few of the other things mentioned here.
post #8 of 11
Thread Starter 
So I tried a new PSU, same problem. Tried installing Windows 8 on a fresh hdd, installs fine but after a few reboots and updates it goes back to acting weird.

It's acting a bit different today, whenever it freezes up, I notice the CPU spike up to 80% then come back down to below 10%, the temp is never an issue. It will do this every 30 seconds or so when loading programs, and when I push the CPU harder it just completely freezes up and turns off. It's one of those deals where if sound is playing it repeats the last note over and over as it freezes up.

Is it even possible that the CPU is bad? I think this narrows it down to the CPU or Motherboard at least. I will be re-seating the CPU and blowing it out to make sure no dust/lint got in there. According to ASUS the MB is definitely compatible with the 3700K, but I guess it could be that too.
post #9 of 11
I doubt it's the CPU, download Memtest and run it, see if you get any errors.. if not then it's most likely the motherboard.
post #10 of 11
Reseat CPU, and install motherboard drivers for PCI chipset.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › PSU Issue? Is my PSU powerful enough?