This cane be several issues in one
Like what operating system do you use.
What drivers for your card
Do you have cooling enough
All power connecters attached to your adapter
Overheating will commonly freeze your comp
To little or faulty power can do reboots or device failures
Connecters to your adpapter might be wrong causing odd problems too
Operating system and driver issues are common too. Ie. youre using a quad core on what operating system.. Xp home/pro/64, Vista, w2k .. ???
Yours
Brorim
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