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Solve : shutting down?

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I have a gateway dx4300-01h
Features: 2.6GHz AMD Phenom II X4 Quad-Core 925 Processor Genuine Windows Vista Home Premium 8GB 800MHz DDR2 SDRAM memory 1TB 7200RPM SATA hard drive ATI RADEON HD 4650 graphics with 1GB discrete video memory Blu-ray disc reader 18x DVD+/-R/RW

I'm not sure why it shuts down but when it does its when i'm playing a COMPUTER game like sims 3 or minecraft.
I just recently uninstalled a bunch of junk wich definetly seemed to make it run smoother. I also opened it up and cleaned out the heat sink, after doing so it is much quiet but it didn't seem to improve performance at all. When it shuts down (on its own) it was getting really loud, but since i cleaned out the heatsink it doesn't give me any warning before it shuts down (it doesn't get loud)
I don't know what's happening, maybe i need a better heatsink FAN, maybe i need a new graphics card, maybe a better power supply???

Before i cleaned it out the noise was from the fans, not sure wich though.

Why does my computer shutdown?CPU or GPU is overheating. Monitor temps with HWInfo 32 for Win7-32bit or HWInfo64 for Win7 64-bit.
http://www.hwinfo.com/Ok, i got the software.
My cpu was about 40 celsius, or 104 fahrenheit
And my gpu was about 110 celsius- 230 fahrenheitQuote from: jaqattack on October 10, 2011, 04:53:28 PM

Ok, i got the software.
My cpu was about 40 celsius, or 104 fahrenheit
And my gpu was about 110 celsius- 230 fahrenheit
GPU is the problem, 110C is 30-50 over normal. Good thing computer is shutting down.What can i do about it?
Should i get a new graphics card?Does GPU fan seem to be spinning normally? You could remove it & reapply thermal compound, but I suspect graphics card is defective. Is it still under warranty?
Are you using a Certified PSU?
http://support.amd.com/us/certified/power-supplies/Pages/listing.aspxThe gpu fan looks like it running fine, my computer should still be under warranty and i'm using the psu that came with my computer when i got it at staples.Definitely return it. If you can grab a screenshot of the GPU temp before it shuts down, that should be enough evidence for them. They probably send it out somewhere for repair. Backup all your personal info because they might reinstall the OS & you will lose everything.Thanks, I'll be sure to do that.This is marked solved & you can let us know what happens later.hang on a sec, i just realized my gpu fan says it running at 1%, that might explain why it's so much quieter, but its definitely spinning. that wouldn't explain why it was still shutting down when it sounded like my fan was going full blast before i cleaned all the dust of the heatsink though...

That would explain the overheating, but still requires a warranty return. GPU fans are weak compared to CPU fans. MINE is at 30% as I type this. It makes noise from time to time, bearings are cheap junk.k, thanks again!sorry it took so long but i just got my computer back back, so apparently what was happening is that the glue that was holding my video card to my motherboard (if that makes any sense?) had fallen apart basically, and dirt got in between and made it overheat!because apparently when the manufacurers make the comeputers they cheap out on the glue. so they just GLUED it back on with lots of glue to fix it as far as i understand.


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