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P8P67 & i5 2500k Help

post #1 of 13
Thread Starter 
Hey

I have recently built a new PC and have very little experience with overclocking, and the very little was a few years ago. I have spent the past week or so searching for guides, reading tutorials and trying to test things myself, but Im not getting anywhere and just seem to be getting more confused!

I have updated the mobo bios, and the cpu is cooled with a danger den waterblock. My temps are around 55c @ 4.2ghz with Prime95, but this OC was done by the machine, I didnt do anything.

I followed a template HERE by TwoCables, but firstly it crashed after around 5mins Prime95, now windows freezes during post everytime at the same place, so I went back to defaults and lost the 4.2ghz I had (back to 3.7ghz). If I had more knowledge I guess I should be tweaking things, but I have no idea when to look at. I did use the Asus overclocker and it set the cpu @ 4.9ghz and was stable, but I removed it instantly as it set my vcore to 1.51v which isnt really good for everyday use as far as I know.

I think I have the system and cooling for 5ghz, but would settle for a little less. I want to learn, but find it all pretty daunting....

I know I havent given the correct info, but I really dont know what you need to point me in the right direction.
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post #2 of 13
Yeah, that extreme button does mean extreme
It gave me 4.944GHz

I just run that extreme option, and stop it at the speed I want!
And then go into the bios and I put the BCLK back to 100.
And up the multi to what 100x would =

I'm guessing yours puts the BCLK to 103, like mine does!

Although, I only run at 4.3GHz auto (1.28V). And you can get that by hitting the fast button

As for manual overclocking, sorry bud I haven't bothered to try!
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post #3 of 13
This would help:
http://hardforum.com/showthread.php?p=1036720684

A number of people advise against setting voltage to "auto" because it most likely gives the CPU more voltage than it "needs" for that OC.

While they might be right, I don't think this should be a problem at all for any OC below 4.5Ghz unless you have a really crappy chip
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post #4 of 13
Quote:
Originally Posted by dklimitless View Post
This would help:
http://hardforum.com/showthread.php?p=1036720684

A number of people advise against setting voltage to "auto" because it most likely gives the CPU more voltage than it "needs" for that OC.

While they might be right, I don't think this should be a problem at all for any OC below 4.5Ghz unless you have a really crappy chip
this is very good guide for oc'ing. twocable's guide goes for 4.8 ghz but it is better to start at 4.5 since this can easily be achieved with decent cooling. if you get bsod, it probably means you need to tweak the vcore some more
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Yep, Aeris died
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post #5 of 13
Auto overclock! For low overclocks it's OK. But it does go a bit extreme at higher clocks
Edited by ACHILEE5 - 7/29/11 at 6:39am
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post #6 of 13
That went wrong! Was supposed to be edit ??
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post #7 of 13
Thread Starter 
Thanks for the replies, I have got it running @ 4.8ghz and have been running Prime95 for past 20mins or so, going to pop out for a while and hope for the best!

Thanks for the link, had some good pointers in it.

I have set up 100x48 and under full load its 1.45v @ 69-75c (depending on the core)

Is that voltage ok, it is on auto, but should I look to reduce it?

Also, is it normal to get such a variation in temps? I hope I dont need to reseat as its a bit of a pain

Thanks again
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post #8 of 13
This is a quote from JJ who did that post on Hard forum
Quote:
Yes as noted in my guide. Ideally i would not recommend anything in excess of 1.425 for 24/7 operation while the overall temperature may still allow for additional voltage and even additional frequency scaling i do not think it is worth it.
So maybe just drop the multi to 47, and see what that gives ??
Oh, and the temps look fine! But as JJ said ^^^^
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post #9 of 13
Quote:
Originally Posted by ManDown View Post
Thanks for the replies, I have got it running @ 4.8ghz and have been running Prime95 for past 20mins or so, going to pop out for a while and hope for the best!

Thanks for the link, had some good pointers in it.

I have set up 100x48 and under full load its 1.45v @ 69-75c (depending on the core)

Is that voltage ok, it is on auto, but should I look to reduce it?

Also, is it normal to get such a variation in temps? I hope I dont need to reseat as its a bit of a pain

Thanks again
1.45 is fine, just keep it under 80c. Personally my chip will do x48 @ 1.38 so you could try bringing it down a tad and see if your still stable.


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post #10 of 13
Thread Starter 
Cheers both of you, Ill run some tests overnight
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