The Dreaded PC Reset/Shut Down

I have tried a 450 Geforce but the PC only seems to reset when put under heavy load. So the 450 was fine, I don't have another GPU to test with and Wootware only have the Galax cards on hand. I have left it in Wootware's hands since I bought everything from them so they should be able to find the issue.

I am just going to report progress and my experience with this RMA here. If nothing else guys can get an idea of what to expect with RMA-ing with a supplier.

ok what make was that corsair psu's. I think the 12v rail might not be enough.

Sorry for not understanding correctly. So you say the geforce 450 is fine but under load it restarts?
 
This is weird cause this doesn't make sense. So can you summarize me what you have tested. I'm a bit lazy to read through it all. state what have you tested so far and what changed. By what I can grab from this is the following. You changed everything in system but still get random shutdowns so I don't know. seems like you cursed of some sort :p

After reading again. looks like a faulty batch of gpu's. Try another brand model. What make and model GPU is that you testing?

So you say that when you take the graphics card and plug it into your friends pc it also shuts down? If not then could be a short on the motherboard. If so then only thing is the gpu faulty batch.

Just to answer your questions.

Galax 970 GTX

GPU reset in my PC and in my mates PC, however it did not reset in Wootware's test bed. However when all my components are placed into the Wootware's test motherboard it resets. Wootware seem to think it is the power supply because they could not get it to reset using 2 "other PSUs". However I am skeptical that the PSU is the issue because

(A) I have tested on 4 other PSUs and
(B) although a larger power supply seems to make the system last longer with out resetting it will eventually, or the FPS drops from 340 to ~120 which does not happen on Wootware's test bed.

So my guess faulty batch of GPUs.

Something to think about, the only similarity between my PC and my mates, I am running an i5 3570K and he is running a i5 3570... Everything else is different.
 
ok what make was that corsair psu's. I think the 12v rail might not be enough.

Sorry for not understanding correctly. So you say the geforce 450 is fine but under load it restarts?

The Geforce 450 is fine and the PC is stable using it, I don't think it can pull enough power to replicate the issue, if it is a power issue.
 
Just to answer your questions.

Galax 970 GTX

GPU reset in my PC and in my mates PC, however it did not reset in Wootware's test bed. However when all my components are placed into the Wootware's test motherboard it resets. Wootware seem to think it is the power supply because they could not get it to reset using 2 "other PSUs". However I am skeptical that the PSU is the issue because

(A) I have testing on 4 other PSUs and
(B) although a larger power supply seems to make the system last longer with out resetting it will eventually, or the FPS drops from 340 to ~120 which does not happen on Wootware's test bed.

So my guess faulty batch of GPUs.

Something to think about, the only similarity between my PC and my mates, I am running an i5 3570K and he is running a i5 3570... Everything else is different.

So have you even tried updating the bios of the motherboard. Also post your friends complete pc specs please? I suspect that the gpu might be incompatible with the motherboard or chipset or something like that cause wootware might be using a later either z87 or z97. I had a clan mate that had to upgrade the bios to get his new gpu to work.
 
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So have you even tried updating the bios of the motherboard. Also post your friends specs please. I suspect that the gpu might be incompatible with the motherboard or chipset or something like that cause wootware might be using a later either z87 or z97. I had a clan mate that had to upgrade the bios to get his new gpu to work.

I have tried upgrading and downgrading the BIOS, no difference. Although ASUS stopped updating my motherboard 3 years ago now.

My mate is running:

Gigabyte GA-P67A-UD3 - http://www.gigabyte.co.za/products/product-page.aspx?pid=3698#ov
Memory: Generic 8gig DDR3
CPU: i5 3570
GPU: 450 Geforce
PSU: Corsair 850

I am not sure what motherboard Wootware are using but their CPU is an Ivy Bridge i3.
 
I have tried upgrading and downgrading the BIOS, no difference. Although ASUS stopped updating my motherboard 3 years ago now.

My mate is running:

Gigabyte GA-P67A-UD3 - http://www.gigabyte.co.za/products/product-page.aspx?pid=3698#ov
Memory: Generic 8gig DDR3
CPU: i5 3570
GPU: 450 Geforce
PSU: Corsair 850

I am not sure what motherboard Wootware are using but their CPU is an Ivy Bridge i3.

ok then it's weird. The only way to test for sure is to literally change one thing at a time and test. first by updating every single driver, bios and so on. Reset bios to defaults with no overclocking. Then disabling the onboard graphics in bios and install latest divers and so on. Then test again. This could be so many things. Even the SSD could be the issue.

Can you maybe also list your complete specs. And i mean even the case, monitor is important here. Also ask wootware to do the same with their test bed and post here. I'm sure we will find the cause of it soon.


I'm just going to say this. Take it as you may but i don't trust any technician at any pc store anymore after dealing with one from rebeltech. My GPU was giving me green lines even on desktop. I took it in and they said no nothing wrong. After phoning suuplier and taking a dump on him how pathetic this is they he told me fine he will swap it out. Guess what? GPU running fine now. no physical issues regarding faulty gpu anymore only the usual unoptimized drivers and games but that's another story.
 
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ok then it's weird. The only way to test for sure is to literally change one thing at a time and test. first by updating every single driver, bios and so on. Reset bios to defaults with no overclocking. Then disabling the onboard graphics in bios and install latest divers and so on. Then test again. This could be so many things. Even the SSD could be the issue.

Can you maybe also list your complete specs. And i mean even the case, monitor is important here. Also ask wootware to do the same with their test bed and post here. I'm sure we will find the cause of it soon.


I'm just going to say this. Take it as you may but i don't trust any technician at any pc store anymore after dealing with one from rebeltech. My GPU was giving me green lines even on desktop. I took it in and they said no nothing wrong. After phoning suuplier and taking a dump on him how pathetic this is they he told me fine he will swap it out. Guess what? GPU running fine now. no physical issues regarding faulty gpu anymore only the usual unoptimized drivers and games but that's another story.

Other than this, I also built the PC outside the case on a desk same issue.

Motherboard - Asus P8Z77-V pro
CPU - Intel 3570K
RAM - 8gigs 1600mhz
PSU - Aero Cool 650, Cooler Master 550, Corsair 650/850
GPU - Nvidia 970 GTX
Other - Assorted SSDs and HDDs
Case - Cooler Master Cosmos

Used other SSDs for testing on our respective machines, (Wootware, myself and my mates) so not the SSD. As i mentioned before I did the one by one component swap on my mates machine and we got down to only the GPU in his machine and it reset. So in my mind it has to be the GPU, but I understand that Wootware has to go through the same process, its just frustrating that when you try RMA something its like you are guilty until proven innocent.
 
Update,

Looks like it was the PSU, supplier tested as well and I am getting a new one. Evidently using a bad PSU and then quickly switching to another causes some safety components (mother board, gpu, cpu, somthing) to kick in even though the new PSU is fine. Did not\do not know if that is possible but will let you know how stable it is when I get it back :)
 
Update,

Looks like it was the PSU, supplier tested as well and I am getting a new one. Evidently using a bad PSU and then quickly switching to another causes some safety components (mother board, gpu, cpu, somthing) to kick in even though the new PSU is fine. Did not\do not know if that is possible but will let you know how stable it is when I get it back :)

This sound very strange. How can that happen? I find some bs cause why in your friends pc it will also shut down. Different PSU. I smell some BS. You know exactly the reason why I don't trust any technician at a pc shop.

Ok so ask them. So you should wait a day/week/year before changing psu. For example if a psu have to much ripple and is a safety concern and you change out psu with less ripple you won't see the same effect as first psu. it will be better. Unless you can swop a psu in 10-20 sec and i don't think possible. But like you said as you plug in your gpu it happens. You don't have the same PSU, you not plugging in your psu so that rules out the power issue of some sort.
 
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Just to close this off, new PSU and its fine.

Everyone including Wootware have no idea why it rebooted when testing on other PSUs just after it reset on the broken one, but the running idea is safety measures built into the motherboard...

This took way to long to fix. :p

Edit,

PS, thank you to Wootware and Landmark, both were a big help especially Landmark for willing to help test everything even though I only bought the MB from them.
 
Everyone including Wootware have no idea why it rebooted when testing on other PSUs just after it reset on the broken one, but the running idea is safety measures built into the motherboard...
Very unlikely. Most probably another power supply also has problems.
 
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