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problems with o/c

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Sep 1, 2002
The main rig in my signature is what i will be concerning with this post. once i up the fsb over 192 i start getting pink and blue squares while in the POST screen. ( see attached picture, that is when it is searching for the RAID hdds)

i have heard of problems when overclocking, but none like this. I have upped my Vcore to the max 1.85v. that does nothing. right now my sys is at 192x9.5, but I WANT MORE. it is an addiction.

but anyways, does anybody know how to correct this. I have not tried to change the vid card becuase it is brand new, and not overclocked at all. stock cooling without ramsinks.
is there anything that i can do about it, aside from getting a new card?