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Something's still holding back my OC

post #1 of 13
Thread Starter 
well... i can overclock it to 2.8ghz on stock voltage and its all great it passes dual prime95 and such and i can test the memory and that passes too...

thing is if i try to start oblivion it'll freeze right up and the screen turns black about 10-25 seconds into gameplay.... i dont know whats unstable, but it doesnt seem like its the cpu since the system will boot at 1.2V and stock is 1.325V... and the ram is tested at stock voltage and ive got that overvolted a bit to assure stability... running it at around ddr2 780 5-5-5-15 1.9V and 1.8V is stock

any idea whats wrong with it?

heres exactly what the system is set at:
2.786ghz 1.325V (and it'll boot at 1.1V)
ddr2 780 5-5-5-12 1.9V (and it'll boot at 1.8V)
all my execute memory bit and anything else like that in my bios is disabled
should i overvolt MCH or FSB? does it need it?
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Heisenberg
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post #2 of 13
what is your fsb to ram ratio?

edit: set the voltage to the next step up from 1.325, if it dosent post or crashed lower it again
Quad Maud!
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Quad Maud!
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post #3 of 13
Thread Starter 
1:1
here are my bios settings lol
haha hope this is enough info. im running memtest86 right now and ill let that go to about 500% and then ill prime95 it. if oblivion still freezes ill try reinstalling it and then if it still freezes ill figure something out from there. it doesnt freeze when im on default clocks though.







Heisenberg
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Heisenberg
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post #4 of 13
did u try going the next step up in voltage for the cpu, are your video cards oced
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Quad Maud!
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post #5 of 13
Thread Starter 
nahh, my video card isn't o/ced... though i will do that once im sure the rest of my system is stable. lol which im not.
Heisenberg
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Heisenberg
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post #6 of 13
lol ur still avoiding my question did u try to up the voltage to the next step
Quad Maud!
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Quad Maud!
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post #7 of 13
TURN UP THE FSB VOLTAGE FOR CRIPES SAKES! YOUR RUNNING 400FSB!

That's your problem. Your FSB is just plain not stable at 400+ most MoBos aren't; yours inparticular with STOCK FSB voltage.
Raptor Raper
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Raptor Raper
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post #8 of 13
Thread Starter 
lol i love this - i ask all over the place "what do i have to look out for when it comes to intel" and nobody ever says anything about fsb voltage... ill try that... btw how would you know you use AMD?

questions like "is there anything like hypertransport that i have to look out for?" should conjure up answers like "fsb voltage" lol
is there anyway to run my fsb on a divider? there should be.
okay well i overvolted fsb .1V... what speed should this sustain my high fsb at?
Heisenberg
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Heisenberg
(15 items)
 
  
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MonitorKeyboardPowerCase
benq xl2420te  corsair k65 rgb  evga p2 1000 fractal design define r5 
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post #9 of 13
Thread Starter 
okay well here's where im at before i go to work...
all those settings in the bios... except for +.1V fsb and 398fsb for a 2786mhz overclock... oh great right just short of the 1ghz club right...
anyways fsb overvolt made it more stable in oblivion.. but then i clicked shut down and just before it shut down it gave me a blue screen. should i overvolt that "(G) MCH voltage control"?
and how much voltage can my fsb take?

and can anyone suggest a good north or southbridge cooler? this gigabyte stock cooler absolutely has to go... preferably something with a fan.
Heisenberg
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Heisenberg
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MonitorKeyboardPowerCase
benq xl2420te  corsair k65 rgb  evga p2 1000 fractal design define r5 
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post #10 of 13
People keep calling Intel and AND apples and oranges....THEY AREN'T. Most all of the principles of OCing are interchangeable. It's only the tiny nuances (which maybe mean the differenct between a good and bad OC) that are different. But ask yourself one question; did his suggestion just work?

Beyond that, I do own a C2D now and have no yet put the rig together. I'll be able to help more at another time with the little things. For example, your MCH voltage control means nothing to me. I'm sure it will in the future when I get crackin on my Conroe.
Raptor Raper
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Raptor Raper
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