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chuckidea

macrumors newbie
Original poster
May 19, 2015
11
3
I'm running a...

Mac Pro (Mid 2010)
ATI Radeon HD 5770 1024 MB
2 x 2.4 GHz Quad-Core Intel Xeon
12 GB 1066 MHz DDR3 ECC
OS X Yosemite (10.10.3)

I am seeing green pixel noise in the dark areas of the screen (tried different screen--same problem). I thought it was the monitor (HP ZR30W), so did HP, but now I have a new NEC PA302W and--guess what--same problem.

Best guess from Apple is the graphics card is causing it.

Can you suggest what to use as a replacement OR what to upgrade to?

Thanks in advance. Chuck
 
Try different cable first. AMD cards carry weaker signals, prone to noise if cable not tightly attached or has high resistance.

A genuinely failing GPU can usually be forced to show weakness by running a hard benchmark a few times. If you can run Uningine Valley 3 times at "Extreme hd" and all it does is green snow, card may not be failing in the "crash computer" sense.
 
Try different cable first. AMD cards carry weaker signals, prone to noise if cable not tightly attached or has high resistance.

A genuinely failing GPU can usually be forced to show weakness by running a hard benchmark a few times. If you can run Uningine Valley 3 times at "Extreme hd" and all it does is green snow, card may not be failing in the "crash computer" sense.

Thank you for your suggestions.

Do you mean the cable between the card and the monitor? Two different monitors, two different cables (plus the one at the Apple store).

Hate to sound like a neophyte, but I'm not familiar with Uningine Valley--a game?

Haha... don't know if I'm anxious to kill it.
 
Thank you for your suggestions.

Do you mean the cable between the card and the monitor? Two different monitors, two different cables (plus the one at the Apple store).

Hate to sound like a neophyte, but I'm not familiar with Uningine Valley--a game?

Haha... don't know if I'm anxious to kill it.

It's a benchmark ;)

https://unigine.com/products/valley/

About suggesting you a graphics card - it would be helpful to know what you wanna do with it.
 
Graphic design

Adobe Creative Cloud...

Premiere Pro for video editing > occasional user
Photoshop, heavy user
Illustrator, heavy user
InDesign, heavy user
 
The GTX 980 is a good upgrade (especially for CUDA apps)

I run a PC version in my Mac Pro 5,1 and have been getting great results. However you do have to deal with no boot screen.

Check out barefeats.com they have some good real world testing information on gpus which work in Mac Pros
 
Adobe Creative Cloud...

Premiere Pro for video editing > occasional user
Photoshop, heavy user
Illustrator, heavy user
InDesign, heavy user

You will need CUDA or OpenCL for Premier Pro. OpenCL also comes in handy for Photoshop, but not required.

I have a GTX780 Mac version EFI and Premiere Pro is pretty smooth on my 5,1 12 core.
 
The GTX 980 is a good upgrade (especially for CUDA apps)

I run a PC version in my Mac Pro 5,1 and have been getting great results. However you do have to deal with no boot screen.

Check out barefeats.com they have some good real world testing information on gpus which work in Mac Pros

Any suggestion on how to deal with the lack of a boot screen? I'm looking to upgrade my Mac Pro 5.1 as well. Thanks the card recommendation! Also, any other Cards you'd recommend for gaming within the $200-$350 Range?
 
Yes, the GTX 770 is a no-brainer. Full compatible with OS X drivers, when the Nvidia web drivers fail because of an OS X update.

Same GK 104 chip as GTX 680, but with better Video RAM, especially the 4 GByte version is attractive.
 
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