5850 not displaying

[snypes]

I just bought a new 5850 from newegg (http://www.newegg.com/Product/Product.aspx?Item=N82E16814102881) a few days ago along with a new 24'' samsung monitor. I was previously running a 9800gtx+ fine with this monitor, but right when i put the 5850 in nothing displays on my monitor and after about 10 seconds i hear the fan get really loud. So I wanted to see if my 9800gtx+ worked... so i put it in and it worked fine. I should mention that im not using the 6 pin extenders seeing as my PSU already has 2 of these. Could this be the problem? Could the problem be maybe preinstalling 5850 drivers?

specs:
q6600 (4 x 2.4ghz)
600w rosewill PSU
sapphire Radeon HD 5850 1GB
24'' samsung 2ms LCD monitor
EP4CUD3R Gigabyte mobo
4gb ddr2 ram
500gb HDD

 

[wolfram23]

okay guys so i log on today and i see that windows left me a reminder so i clicked on it and it said that my ati driver has crashed 18 times. ive never had this happen before. Im running 10.6, what can i do to fix this?

It sorta depends. 18 crashes might include when you were having issues with it before. Have you noticed it crashed/black screen/BSOD/freeze since it's been working properly? If not, you can ignore it. If yes, it might be the low idle issue. By changing the CCC Overdrive speeds a little it will increase the idle speeds and that fixes some issues people are having.