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5870 Crossfire Issue

post #1 of 4
Thread Starter 
I installed my second 5870 in Crossfire mode last night and am having an issue when in game with Battlefield Bad Company 2. With V-Sync off and after about 2-3 mins in game, my monitor (Hannspree 28") gives me one long continuous beep and will not stop unless I get out of the game or turn the monitor off. It does this no matter what I do and I have even swapped the cards just to see if it was related to a particular card. I am using the Catalyst 10.5 drivers right now.

It ran fine last night and now this issue has come up. If I run it with V Sync on, it runs fine. Any ideas what I can do to fix this?
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post #2 of 4
Quote:
Originally Posted by DillnutMcGee View Post
I installed my second 5870 in Crossfire mode last night and am having an issue when in game with Battlefield Bad Company 2. With V-Sync off and after about 2-3 mins in game, my monitor (Hannspree 28") gives me one long continuous beep and will not stop unless I get out of the game or turn the monitor off. It does this no matter what I do and I have even swapped the cards just to see if it was related to a particular card. I am using the Catalyst 10.5 drivers right now.

It ran fine last night and now this issue has come up. If I run it with V Sync on, it runs fine. Any ideas what I can do to fix this?
maybe your refresh is too high? make sure it's 60hz. otherwise, with the information you gave on your post, all problems point towards the monitor
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post #3 of 4
A beeping monitor?

You don't have a ups do you?
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Mighty-iTX
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post #4 of 4
Thread Starter 
Quote:
Originally Posted by grunion View Post
A beeping monitor?

You don't have a ups do you?
BINGO! BINGO! BINGO! I am a complete NOOB idiot on this one. My UPS (it's a small one) sits right under my monitor under my desk and of course not paying attention, I hear the beeping and assume it's my monitor since it went away when I turned it off. I completely forgot about my UPS possibly being overloaded with the new card. I plugged the monitor right into the wall and no more issues. Thank you SOOO much grunion for pointing this out!!
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