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Upgraded video card, worked for 30 mins, no power. fried mobo? fried psu?

post #1 of 18
Thread Starter 
I upgraded my gpu today from a PNY 9800GT EE to a GTX 275. Installation went smooth, no problems with drivers, games were great, all benchmarks were x2 of my last last card, everything worked as expected. I checked Gpu-z after all benchmarks and monitored the temps and noticed they were ALOT higher than the 9800GT, so I decided to see how high it could/would go under load to get used to my card and set fan settings if need be, so I ran Furmark. When I tried the burn test, the temp never went over 92c, however after almost 4 minutes of stress testing, my computer shut down completely. I tried to start it up, but to no avail. I also noticed a burnt electronics smell, so I immediately thought something had fried. I opened up the case and the smell seemed to be coming from the PSU.

My PSU I got along with a case I had ordered online. Theres no brand name or anything on it, just a basic sticker with voltages.

I took out the video card, and I removed and replaced the PSU and still my motherboard would not power on.

Now I can understand my PSU failing or frying due to being inadequate for my video card, and more specifically since the GTX 275 requires a 12V rail of 40A and my PSU is 10A, that I can totally understand.
BUt is it possible/common when having these kinds of power issues that it also fries the motherboard as well? RAM? my HDD??
    
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post #2 of 18
Quote:
Originally Posted by voltagenic View Post
I upgraded my gpu today from a PNY 9800GT EE to a GTX 275. Installation went smooth, no problems with drivers, games were great, all benchmarks were x2 of my last last card, everything worked as expected. I checked Gpu-z after all benchmarks and monitored the temps and noticed they were ALOT higher than the 9800GT, so I decided to see how high it could/would go under load to get used to my card and set fan settings if need be, so I ran Furmark. When I tried the burn test, the temp never went over 92c, however after almost 4 minutes of stress testing, my computer shut down completely. I tried to start it up, but to no avail. I also noticed a burnt electronics smell, so I immediately thought something had fried. I opened up the case and the smell seemed to be coming from the PSU.

My PSU I got along with a case I had ordered online. Theres no brand name or anything on it, just a basic sticker with voltages.

I took out the video card, and I removed and replaced the PSU and still my motherboard would not power on.

Now I can understand my PSU failing or frying due to being inadequate for my video card, and more specifically since the GTX 275 requires a 12V rail of 40A and my PSU is 10A, that I can totally understand.
BUt is it possible/common when having these kinds of power issues that it also fries the motherboard as well? RAM? my HDD??
psu is generic and ****ty. i don't think it'll fry ram or hdd. however mobo i'm not so sure.
when my generic ****ty psu fried, it took the mobo along with it. the rest of the system was fine. in fact, i'm running on it (check my other sig rig)....till i get my sig rig.

MORAL: never buy psu's that come with cabinets. they are generic chinese POS.

WHAT TO DO NOW?: Get new psu. Corsair VX450 (seeing as CX400 has been discontinued).
Edited by Gaurav Bhattacharjee - 2/17/11 at 10:30pm
The Simple One
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The Simple One
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post #3 of 18
Your system consumes no more than 200W. 225W at the outside. If your PSU failed then it was a piece of crap and, incidentally, may have harmed your other components when it failed.
post #4 of 18
post #5 of 18
^ Agreed.
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post #6 of 18
You should not have run Furmark on a cheap PSU. Furmark is the most power hungry app you can run on a graphics card. It is likely that cheap PSU did something bad to the rest of your components.
post #7 of 18
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post
Your system consumes no more than 200W. 225W at the outside. If your PSU failed then it was a piece of crap and, incidentally, may have harmed your other components when it failed.
Crap, I was afraid of that. It's not really a big issue if the board is gone tho, it was an open box mobo on newegg for 20$, plus I was already planning to upgrade the mobo anyways and purchased an XFX 750i SLI a couple days ago.
Do you think that it's possible that the card could be fried as well?
The PSU requirements for the GTX 275 are: "A minimum 550W or greater system power supply (with a minimum 12V current rating of 40A)"

My current PSU, the one that fried is/was

    
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Barracuda 7200.10 320gb Sata 3.0Gb/s LG GSA-H20L DVD-RW drive Windows 7 64bit Ultimate Acer X213H 23" 1080p 
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post #8 of 18
Quote:
Originally Posted by voltagenic View Post
fried mobo? fried psu?
no fried chicken
post #9 of 18
Does 16+14A = 40A?

That 550W rating on the GPU box applied to power supplies like the one you have.

It takes a rubbish 550W power supply to run that card, whereas a good 350W one will run it just fine.

Your power supply probably failed, took out your motherboard, and most probably everything else, except the fans.

Fans are pretty resistant to voltage spikes.

My suggestion now is to take that card, put it in a known working computer with an adequate (by adequate I mean good, reputable power supply) and see if it works fine.

Take your CPU and try it somewhere else as well. Same goes for HDD, RAM, etc.
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post #10 of 18
Thread Starter 
Quote:
Originally Posted by Booty Warrior View Post
That's really crazy! I probably would have totally given up on system building/upgrading for good. LOL

Something similar happened to me before though, I bought a lot of random pc parts on ebay (case fans, old video cards, nic cards) and hooked some of the fans into my server case....thank god I still had the tower on its side with the cover off and I could pull the plug fast! The cords on the fans, 2 of the 3, melted and started to catch fire! LOL good times
Edited by voltagenic - 2/17/11 at 11:32pm
    
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Barracuda 7200.10 320gb Sata 3.0Gb/s LG GSA-H20L DVD-RW drive Windows 7 64bit Ultimate Acer X213H 23" 1080p 
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