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Mac Pro 4.1 Early 2009

L

linkin-ns

macrumors newbie
Original poster
Apr 19, 2011
8
0
hi guys,

I just bought a 2nd Mac Pro 2009 with Xeon 2.66, 8GB RAM and I use my XFX 6870 from PC because it the machine does not come with any graphic card.

I connect it with 2 monitor, one is Dell U2711 and Shimian 27" with both 2560x1440.

However sometimes my Dell screen with just went black for a second and back on again, I just not sure what wrong with that. There is no problem with the other monitor.

Just wondering that the graphic card could not drive 2 monitors because it not really compatible with Mac or what reason?

should I find a 2nd 5870 ?

Thanks
 
Last edited:
DanielCoffey

DanielCoffey

macrumors 65816
Nov 15, 2010
1,207
30
Edinburgh, UK
Can you confirm which Mac Pro model you are using as your post title doesn't match what you are talking about. You will see the information you need on the About My Mac - More Info page.
 
MacUser2525

MacUser2525

Suspended
Mar 17, 2007
2,097
377
Canada
linkin-ns said:
... I use my XFX 6870 from PC because it the machine does not come with any graphic card.
...
However sometimes my Dell screen with just went black for a second and back on again, I just not sure what wrong with that. There is no problem with the other monitor.
Click to expand...

I got that on my 2408 when I used a display port to DVI adapter then I finally broke down and bought a display port cable and have not had a problem since. If you are using similar try that.
 
L

linkin-ns

macrumors newbie
Original poster
Apr 19, 2011
8
0
is there such a different about performance between a flashed 6870 and non-flashed 6870??

or just only about the information show on System profile and Boot Screen
 
MacUser2525

MacUser2525

Suspended
Mar 17, 2007
2,097
377
Canada
linkin-ns said:
is there such a different about performance between a flashed 6870 and non-flashed 6870??

or just only about the information show on System profile and Boot Screen
Click to expand...

Link speed is slower on a PC card but that has nothing to do with flashing rather a resistor that needs to be changed/added to get full link speed.
 
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