a Sad long Boring story....

ok......... about 5 years ago when i bought my pc My VGA was a Gigabyte radeon hd 4850 everything was ok since after about 3 years that VGA broke it has a 3 year guarantee and only 3days was left... anyway gigabyte customer service changed it with a refurbished 5850 for a cost 1year after that 5850s DVi(HDMI was working) output stop working so again guarantee and this time a refurbished 5870 again for a cost.... one year after that the new 5870 stopped(stops,stop) working(the grey screen of Death)so again customer service.... but this time after some argue with people at customer service i got a new 5870 without any other costs....

But after one year and a month(about 3 days ago) the new 5870 suddenly stopped working(i was in cs:go everything was normal suddenly screen goes black and when i rebooted my pc it plays a beep ..the same beep rythm when you dont have a graphics card installed)...

And this time guarantee was expired .......(the expiration date was 25/may/2014)

i checked PSU in my pc its ok and works fine....i dont know whats wrong ......

so tell me your opinion is there some kind of Hex on my PC??

can it be from other parts?

or What?

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now im using an old 9400GT ...and it sucks....

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to make things clear here is my specs:

cpu:AMD phenom x4 9950

Ram:4GB patriot ddr2 800

PSU: a good 580Watts psu it might not be known in your country but this is one the best PSU brands around>> Green gp580b here is a link

and my case door(lid whatever you call it) was always open....this is my case not exactly this one but a little bit different with green brand on it...(a little bit tweaked one) here it is....

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no giveaway sry but have to save for another pc....or atLeast VGA....