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two HD6450 cards unstable in windows

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  • Windows
  • Graphics Cards
  • Graphics
Last response: in Graphics & Displays
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April 13, 2013 1:23:43 PM

I bought two HD6450 silent cards to run 4 x30" 2560x1600 2 on DVI and two on displayport. However with windows 7 and now windows 8 , my system is not stable with both cards installed, even if just using one display on each. When i say unstable, the system will crash at some stage or simply lock up. It could happen 2 to 3 times a day or maybe not for several days. At first i wasnt sure thinking it was another hardware problem, but when i removed one card the system is 100% stable for weeks at a time.

More about : hd6450 cards unstable windows

a b U Graphics card
April 13, 2013 1:25:11 PM

not strong enough PSU?
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April 13, 2013 1:36:48 PM

chromic said:
not strong enough PSU?


I doubt that, Seasonic 460W fanless, should be enough, not OC'd, I7 2600k, systems only using about 260W when i measure it, those cards are low power are the not, max like 30W ? plus screens are sitting idle when it hangs, its not like im cranking 3d on or anything to push up the power
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a b U Graphics card
April 13, 2013 1:38:51 PM

maybe the other card is defective?
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April 13, 2013 1:50:55 PM

chromic said:
maybe the other card is defective?


Ill swap them to see, cant remember if i already did that.
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a c 100 U Graphics card
April 13, 2013 3:42:30 PM

How are your CPU and GPU temps. Something you need to keep an eye on when going fanless.
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