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Results of overclocking - too hot? - Page 2

post #11 of 62
Lapping is basically removing material with an abrasive such as fine grit sandpaper with the goal of making the surface flat. You may not need to do it. What are your load/idle CPU temps using TAT or RMClock?

To download rmclock: RMClock Utility. Products. CPU Rightmark
To download TAT: techPowerUp! :: Download Intel Thermal Analysis Tool

To read more about TJunction and for a discussion about other things relating to thermal output fromC2D chips, see: Core 2 Duo Temperature Guide
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post #12 of 62
Is your cpu voltage setting in the bios still at auto? If so, you have to set it manually or else the bios will automatically give a much higher vcore then needed resulting in higher temps. At 2.5Ghz you should get away with 1.25v, if you have a good stepping even 1.15v would be possible and that would shave at least 10c off the temp.
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post #13 of 62
i have a Prescott 3.2ghz undervolted and it sits a 45 full load and 34 idle on air cooling ..

cpu ..1.2250v ..its supposed to be 1.3400v .... but if it ever goes over 50c...BSOD. end..
..
    
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post #14 of 62
Thread Starter 
@ graysky - thank you, but i'm gonna give that a miss as it will void my warranty

@acoma_andy or nigel - so since my intel e3600 is already o/cd at 2.5Ghz, you sure its safe to knock the voltage down to 1.25v/1.15v??? If so, how do i do it on my Asus P5B (standard) mobo?

thanks for helping
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post #15 of 62
Quote:
Originally Posted by rippers View Post
@ greysky - thank you, but I'm gonna give that a miss as it will void my warranty

@acoma_Andy or Nigel - so since my Intel e3600 is already o/cd at 2.5Ghz, you sure its safe to knock the voltage down to 1.25v/1.15v??? If so, how do i do it on my Asus P5B (standard) mobo?

thanks for helping
..

mines not overclocked that's why i have under volterd it ..

just look in you bios for something like overvoltage ops .then knock the voltage down not to much thou..or you'll get BSOD.. by the way its safe i been doing this for ages and iv never had a problem with it..
    
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post #16 of 62
Thread Starter 
thank you for that nigel mate. Sorry but since your system is not o/c then it might be okay, but because my system is already o/c'd, should i leave it in o/c mode and knock down the voltage to 1.15v? or should i first put it back to original speed?

thanks
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post #17 of 62
Quote:
Originally Posted by ripperuk View Post
thank you for that nigel mate. Sorry but since your system is not o/c then it might be okay, but because my system is already o/c'd, should i leave it in o/c mode and knock down the voltage to 1.15v? or should i first put it back to original speed?

thanks
like i say im running stock speeds so im not to sure..
if you are overcloking. knocking the voltige down may have a BSOD affect..
you cud always put it back to stock and use a lower voltage...but don't oc it..

its up to you mate.
    
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post #18 of 62
Thread Starter 
hello genius guys out there...thank you so much for the voltage info...it seems to work and temps come down drastically.

well with my cpu o/c @ 2.5Ghz, i knocked down the voltage to 1.25v...the cpu temp went down to:-



I tested with orthos and its fairly stable for at least upto test 6, but then...

.....my next stage was to up the speed to 2.8Ghz, whilst keeping the vcore @ 1.25v, but this is where is the problem is as orthos test immediately reported an error, atlhough the temp was below 60C Max. Also the pc froze and would not boot again...i had to reset the CMOS Jumper to get back in. I want to squeeze out the best speed, whilst keeping safe temp, so what should i do next?
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post #19 of 62
Thread Starter 
well thanks guys for your help. Let me update you as what i've managed to do after messing around with the voltages settings in BIOS.

FAIL = Intel TAT, Orthos, Windows froze or the pc didn't boot/rebooted whilst testing etc

PASS = No problems, even whilst testing in orthos or TAT.

FSB / RAM
----------
390 / 780 @ 1.3000V = FAIL - (2730Mhz)
390 / 780 @ 1.3125V = PASS - (2730Mhz)
400 / 800 @ 1.3125V = PASS - (2800Mhz)
420 / 840 @ 1.3125V = FAIL - (2940Mhz)
420 / 840 @ 1.3250V = FAIL - (2940Mhz)
420 / 840 @ 1.3375V = FAIL - (2940Mhz)
410 / 820 @ 1.3250V = PASS - (2870Mhz)
415 / 830 @ 1.3250V = FAIL - (2870Mhz)


As you can see above, I managed to push the speed to a best of 2870Mhz, which is getter better by the day, lol :rockon2:

Even in Intel TAT, the max temp i got was 65C and in orthos i managed to stick to 60C or below.

Now my next objective is to ask the experts, can you guys spot any combination that I might have missed out? For example my RAM runs at 800Mhz, but i can squeeze it to 820Mhz..can i adjust anything else in the bios, such as ram voltage to get somemore speed from the pc?
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post #20 of 62
tighter the RAM timings
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