Tom's Hardware > Forum > Overclocking > General Discussions > Q8400 on BFG SLI 680i Strange Problem

Q8400 on BFG SLI 680i Strange Problem

Forum Overclocking : General Discussions - Q8400 on BFG SLI 680i Strange Problem

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mRWaffles   06-07-2009 at 03:57:53 AM

I recently upgraded from my e6600 Core2Duo to a Q8400 Core2Quad. Using the same motherboard, fan, and everything, I figured I could over clock my Q8400 from 2.66 (stock) to at least 3.3 because I had OCed the e6600 from 2.4 (stock) to 3.4 with just a big typhoon CPU fan. I reset the jumpers on the motherboard to clear the CMOS, and rebooted the machine, but now if I touch any setting on the CPU in the bios (trying to overclock it) the machine won't boot. I have no idea what is going on. I can't even get it to boot at 2.7 even though stock is just 2.66 . I figured updating the bios might help but BFG no longer makes motherboards and there's no easy way to do it. Anyone have any ideas?

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flyin15sec   06-07-2009 at 09:39:53 PM
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From BFGs web site: Intel Core™ 2 Extreme (dual and quad core), Core 2 Quad, Core 2 Duo, Pentium® D, Pentium 4,and Celeron® D Socket 775 processors (Does not support new Intel Core®2 Yorkfi eld-based Quad-Core processors)

http://www.bfgtech.com/bfgrinf680is.aspx

You're pretty much gonna have to get a new motherboard. Some folks have reported being able to get Yorkfields to work, however in your case it doesn't.

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mRWaffles   06-07-2009 at 09:48:50 PM
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How do I know if my processor is Yorkfield? I don't remember which one I purchased. I recently got it to boot at stock speeds and now I'm having a bitch of a time trying to get it to be stable at 3.2 Ghz with a 400 FSB .

<EDIT>

Used CPU Z yeah it is a Yorkfield. Ugh. Why is it booting at all then if its not supported?


Message edited by mRWaffles on 06-07-2009 at 09:54:36 PM
Reply to mRWaffles
pdkoester   09-28-2009 at 05:05:23 PM
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Just because it boots doesn't mean anything. If it is not supported, then that means they can't help you or provide a solution for anything related to that CPU. :non:

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