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Overclocking cpu nb problem.

post #1 of 20
Thread Starter 
Every time I try and boost the cpu nb to anything over 2000 mhz (2400 mhz, 3000 mhz, etc) with and without boosting the cpu northbridge voltage, the computer wont start back up (no beep, screen wont come on, just the lights and fans. So then I have to take out BIOS battery and short the cmos.

Any reasons why this is happening? I am getting the cpu overclocked between 3.8-4.0 ghz with out any heat issues or blue screens.

Any help would be great. Thank you.
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post #2 of 20
Try increaseing the CPU-NB Volt's to 1.37-1.4V that should help solve your problem.
The Ancient
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The Ancient
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post #3 of 20
Tried just doing the CPU-NB on its own without a CPU overclock? Set the voltage at 1.35 to start with with no changes to speed, then see if it boots, find out if its the voltage causing the instability
    
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post #4 of 20
Thread Starter 
I brought my cpu down to stock voltages and all, tried to bring the cpu nb up by itself with voltage, still same thing, no computer start up.

Maybe this board can't handle that?
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post #5 of 20
Thread Starter 
Hmm, could it be because I have all 4 ram slots taken up causing instability?
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post #6 of 20
lower your cpu multi and ram as well. Maybe you are making that simple mistake
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post #7 of 20
16 gigs certainly is not the best overclocking ram solution, but can't imagine that it would cause you to not be able to oc nb at all
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post #8 of 20
Yea, its not helping having so much memory, but as you have found out, adding more volts only to the CPU-nb is knacking things up, downclock your memory and timings and try again, if that doesnt work, try running for little with less memory in it
    
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post #9 of 20
Quote:
Originally Posted by paulharrison123 View Post
Yea, its not helping having so much memory, but as you have found out, adding more volts only to the CPU-nb is knacking things up, downclock your memory and timings and try again, if that doesnt work, try running for little with less memory in it
You don't buy ram to downclock it later ...

To the op, increase the nb voltage a little (not the cpunb voltage, but the actual nb voltage (or sometimes chipset voltage))
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post #10 of 20
Quote:
Originally Posted by nicksasa View Post
You don't buy ram to downclock it later ...

To the op, increase the nb voltage a little (not the cpunb voltage, but the actual nb voltage (or sometimes chipset voltage))
Im trying to make it so it actually boots when changes are made to it, fault finding if you will, to pin point where the problem may be.

If you read above, even with no changes at all to the BIOS other than upping the CPU-NB voltage it still wont post, indicating a heavily stressed IMC, either down to a weak IMC or RAM - hence my comments.

So less of the obvious comments with "...." at the end.
    
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CPUMotherboardGraphicsRAM
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Hard DriveOSMonitorPower
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