HT201805: About graphics-card compatibility between Mac Pro models

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Q: ATI Radeon HD 5870 graphics upgrade kit: dirt pixels

My  ATI Radeon HD 5870 graphics upgrade kit shows odd pixel dirt on my Mac Pro 3,1 with one Cinema HD with OS 10.10.3.  A few mouse moves create a trace of black pixels and lines which stay till the windows get refreshed.  I checked different PCI Slots and reset PRAM.  Cinema HD is connected via standard DVI. My former card NVIDA GeForce 8800 was just working fine.

Any idea whats wrong?

Mac Pro, OS X Yosemite (10.10.3), MacPro3,1 ATI Radeon HD 5870

Posted on Jun 2, 2015 11:54 AM

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