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I am new, how to oc my cpu probably without causing any damage?

H

hunkeelin

Senior member
Anywayz i try to OC my computer and there's a few problem.
i know the cpu frequency = blck freq * multiplier. But before that there's a feature in RIVE called "CPU level up" in which it increase my cpu freq to 4.068 without doing anything. I tried that and cause my window boot up to go BSOD.

OK, so i reset to default and try to increase my Bclk frequency this time. increasing from 100mhz to 125mhz. this cause my system to not to boot up (not even showing bios). I got it to boot when i remove one of my 6970 and boot with a single gpu. <-- anyone know why?

lastly i try to set the multiplier, i set it to 37 in which it should give me 3.7Ghz. and it did show it in CPUZ. however my voltage and core speed is fluctuating for some reason. like for a sec it's 3699.9Mhz 1.264V then after few sec it went to 3700.2Mhz 1.272V. <-- is that normal? is my cpu defected?
 
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Temp might be to high or your CPU simply just can't take it, there's a reason they get sold at a lower speed...
1 of however many might not actually go above it.
 
Rvenger said:
For 4.5ghz your going to need about 1.32-1.35v on a 3820.
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Yup. The OP should perhaps read other threads with this info already discussed (a few days ago) before starting new threads on the same subject. He is starting to remind me of Tweakboy.
 
3699.9Mhz 1.264V then after few sec it went to 3700.2Mhz 1.272V
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Perfectly normal. I would read around about overclocking. There is a vast amount of information that can help you in these forums. I wouldn't start tweaking settings if you don't know what you are doing. You are likely to blow up a $300 chip if you are not careful.
 
The reason you failed to boot at 125 BCLK is because that's way, way beyond spec. It's usually hard to go beyond 105, from what I've read. Definitely keep BCLK at 100 and just change multiplier. Voltage will fluctuate a little here and there, and your clock speeds will vary a little at load, and wildly when jumping up in response to varying load.
 
notty22 i read the link and some online overclocking 3820 forums., that's why i decide to set my bclk to 125mhz because it said "the 125 MHz setting is a 100%-operational option" however it is not the case.

also in the link they onyl use 1.208V to achieve 3.7Ghz. wheredoes in my case it toke me 1.274V. Why is that?
 
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hunkeelin said:
notty22 i read the link and some online overclocking 3820 forums., that's why i decide to set my bclk to 125mhz because it said "the 125 MHz setting is a 100%-operational option" however it is not the case.
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Do some self experimentation and note what happens. Currently you are starting a new thread at every turn. Some people that use some diligence read for weeks before trying to o/c. You want to know basic and advanced answers without understanding the basic workings of almost all functions from your post history.
It's almost feeling like trolling.
 
notty22 said:
Do some self experimentation and note what happens. Currently you are starting a new thread at every turn. Some people that use some diligence read for weeks before trying to o/c. You want to know basic and advanced answers without understanding the basic workings of almost all functions from your post history.
It's almost feeling like trolling.
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"experimenting" is the thing that i want to avoid, i want to know exactly what i am doing and i want to be confident in it. if i don't I might blow up my chip.
 
hunkeelin said:
"experimenting" is the thing that i want to avoid, i want to know exactly what i am doing and i want to be confident in it. if i don't I might blow up my chip.
Click to expand...

Then do more research first. I was easily able to OC my 3820 just by reading all the articles out there on SB-E.
 
Edrick said:
Then do more research first. I was easily able to OC my 3820 just by reading all the articles out there on SB-E.
Click to expand...

i can go to 4.0ghz too (by setting the multiplier to 40) but how u achieve it with only 1.23V? i need around 1.38 to achieve 4Ghz. My main question is why my cpu seem to take more voltage compare to the review out there
 
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hunkeelin said:
i can go to 4.0ghz too (by setting the multiplier to 40) but how u achieve it with only 1.23V? i need around 1.38 to achieve 4Ghz. My main question is why my cpu seem to take more voltage compare to the review out there
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First of all, there is no set voltage for any Sandybridge chip, however, there is a range of voltage that can be considered default. Some boot at 1.20, some at 1.10, some at 1.25v, depends on the chip itself. So if someone says "blah blah, I got my 3820 running at 4ghz @ 1.20v, it doesn't mean yours will do the same. There is a default max voltage and I bet that is around 1.4v for your chip, just like 1.35v is with regular SB.

So, up the volts until you are stable. Just don't go over 1.4v. That is the best advice I can provide to you. You might have just gotten a chip that was close to the edge of the wafer, in turn, it may need more volts to maintain stability.
 
hunkeelin said:
"experimenting" is the thing that i want to avoid, i want to know exactly what i am doing and i want to be confident in it. if i don't I might blow up my chip.
Click to expand...

And that is your error how do you think most of us started?

you kids have it easy with the overclocking now compared to back in the day.

I would do as other have suggested and READ MORE.

As for blowing up your chip you should know the safe voltage range of your cpu before you even think about this.
 
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