Quote Originally Posted by samsc View Post
10sep2010
The latest mac pro 5,1 - just about shipping -is currently broken out of the box-

10.6.4 is has huge problems too - its seems with ATI video cards- particularily the radeon 4870 - which was mostly broken for large texture uploads on 10.6.4-

Apple released a graphics update for 10.6.4 a couple of weeks ago- which made things better

but this doesnt work on latest mac pro- yet-

There are reports of other graphics cards working - nvidia cards seem to be working much better

10.6.5 isnt out yet.

10sep2010
just put a gt120
http://store.apple.com/uk/search?fin...mco=Nzc1MjMwNg
into a second slot - didnt remove 5870 ( it does barely 2 layers of 1080 )- it works much better than 5870 - 6-8 layers HD AIC - with a single 1080 monitor.
GT120 isnt a great performer with multiple hidef displays.
default shipping OS

texture upload to 5870 graphics card is broken on 10.6.4 in mac pro 5,1