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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Consumer Hardware & Components > ATI Radeon HD 4870 - Black screen and Fans go crazy!

ATI Radeon HD 4870 - Black screen and Fans go crazy!
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AppleGirl1990
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Join Date: Jan 2008
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Jun 16, 2009, 04:57 PM
 
I decided to upgrade my graphics card to the ATI Radeon HD 4870 (i also purchased a new Apple Display and hooked it up via the Mini DisplayPort).

I've used the computer for a few days now and everything seemed to be working fine. But 3 nights ago my screen turned black and the fans in the computer went crazy. I was forced to hold down the power button and reboot. It happened again this morning.

Has anyone else had trouble with this graphics card? or a simlar experience?
MAC PRO: Two 3.2GHz Quad-Core Intel Xeon 5400 processors
ATI Radeon HD 4870 with 512MB of GDDR5 memory
1600MHz, 64-bit dual independent frontside bus
16 Gigs (4x4) of 800MHz DDR2 memory
     
   
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