My overclock thus far!

n3os3n

n3os3n

n3os3n

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28 Mar 2011
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5
Hi all and thanks to those who read/reply to my post.

I've been lurking around the forums for some time and have read the stickies, only just bothered myself to make an account however! :D

I'm quite happy with my current overclock, temps under full-load are well within the acceptable range ( never higher than 72, using Corsair A70 ).

However, the way I have gone about my overclock is rather lazy (letting my asus p8p67 deluxe do most of the work with auto voltage settings) and in doing so I'm somewhat fearful of the CPU's lifespan.

I've basically got everything on auto, a x50 multiplier, PLL and similar settings set on high or extreme for more overclocking headroom and a fixed Vcore of 1.496 (even minor adjustments to this result in instability).

So my main concerns are:

Intel specifies much higher "safe" Vcore than I am reading on a lot of sites and forums, opinions on this?

Any guidance on how to manually lower some voltages (currently set to auto) would be greatly appreciated as my attempts just result in BSODs! :confused:

Also, even after reading the stickies, I am clueless how to overclock my crucial memory (16gb) (currently on 1333 [9 9 9 24] Command Rate 2T), again, any attempt results in BSOD

Thankyou for taking the time to read my post and extra thanks to those who may reply! :)



n3os3n signing out!
 
1.5v as a 24/7 vcore is not a good place to be.

As recommended by OcUK after extensively testing and speaking to intel as well............

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!
 
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Im a bit worried for you. Having it at almost 1.5 and not saying what speed you have it clocked too is a concern.

If it was a suicide bench run then no problem, but you make it sound like a 24/7 thing, which is just going to brick your CPU very quickly :confused:

edit, nvm I see the cpu-z link now. Still, even at 5GHz that voltage is a no-go for 24/7 use. If you have high end cooling, water or better, then you could probably push to 1.4-1.41, I think one of the tech crew on here was planning to do that so he should know his stuff.
 
Also with having 16gb of RAM, and all memory modules populated, you will find it much harder getting a higher stable overclock. This could be a root in your problem.
 
Liquid said:
1.5v as a 24/7 vcore is not a good place to be.

As recommended by OcUK after extensively testing and speaking to intel as well............

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!
Click to expand...

Thanks for taking the time to respond :) ... I'm rather confused with this "intel recommended voltage" issue, there seems to be a LOT of conflicting numbers floating around the internet, it's around 2 or 3 weeks since I last checked but intel themselves said anything below 1.5 should be assumed "safe voltage". Yet on forums such as these, I see, as mentioned above, warnings saying not to exceed 1.3... Please don't take this wrong, I'm not disregarding the information you're providing, just expressing my confusion with so much conflicting opinions on this matter!


@ MooMoo444, firstly thanks for pointing out the issue with my RAM, however as I'm rather new to anything other than simply putting components together at stock settings, would you be able to highlight WHY having all memory modules populated affects overclocking? :)

Also, as I feel I wasn't exactly forthcomming with all the information I could provide, I've attempted to give a better overview using the windows snipping tool for some screenshots at idle and under the intel cpu burn in stress tester on set to high running 5 times (my overclock passes), perhaps there's some info I've forgot to include which will sway opinion on this!

During:

FULL-LOAD.


Completion:

FULL-LOAD-COMPLETE.PNG


[EDIT]: Forgot to include this link where I've been getting a lot of info from, I'm not too famailiar with the website as I've lurked around here far longer, I'm also somewhat dubious as to the source of this information, but it may help you see my decisions thus far :)

http://hardforum.com/showthread.php?t=1578110
 
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Use Prime Blend to test stability. You will almost definitely degrade your chip trying to run 5Ghz 24/7 at those volts - ofcause this is up to you :)
 
beh* said:
Use Prime Blend to test stability. You will almost definitely degrade your chip trying to run 5Ghz 24/7 at those volts - ofcause this is up to you :)
Click to expand...

Thanks for your advice, this has been my main concern so far :)

The link in my previous post directing to hardforums is well worth a read, and is supposedly from official Asus testers, and they don't seem to have any issue with running upwards of 1.45vcore as a 24/7 overclock, and some of the information there just seems to conflict heavily with things I read in actual overclocking communities such as this. Which I take more to heart.

This, ontop of the fact that I'm very much a newbie when it comes to overclocking, has resulted in me going back to stock settings for now.

Yes I want the super-speed processing and the (amazingly) faster times when encoding/decoding music/video and such, but not if someday soon my cpu goes *POP!* :o

I've also realized after a comment further up regarding my RAM, that I really need to read up on the general workings of a computer before I go head-first into spending half my bank balance haha. It's nice to know I've got a cpu that can hit a 50 multiplier however :cool:

Hopefully some others in a similar position/mindset to my own can read this and benefit from the advice/points made.

Thanks for the input peeps! ;)
 
Latest developments:

Decided to trust in Asus Auto-Tune, the results were a BCLK of 103.5, x47 multiplier and as soon as I ran the intel burn-in test I linked earlier in this thread I was faced with 97c temps and over 1.6 vcore... thanks a lot Asus! ...

For anyone considering buying an Asus P8P67 Motherboard I highly recommend them, they have huge overclocking headroom and a lot of nice features (4 usb3 slots can't be bad!) ...Just avoid the auto-overclocking like the plague, it's horrid. Read, learn, do it yourself. Hell I'm a total newbie and I got a 5ghz stable clock with FAR lower temps and vcore! ...Watching the vcore hit 1.6 nearly gave me a heart attack :D
 
trisp said:
1.6 volts dear lord jesus christ, what are u trying to do make a few hundred pound toaster?
Click to expand...

beh* said:
n3os3n, I highly recomend reading the following guide. Also please check out the overclocking stickies for some general advice.
Click to expand...

Hehe, the 1.6volts was due to the asus "intelligent" chip on my motherboard, no choice of my own. I instantly reset my computer and set everything to stock settings. Really not at all impressed with the DIGI+VRM aspect of the new Asus motherboards, those voltages are insane.

And thanks for the link, extremely helpful :) I've read the stickies here already but they don't all relate so well to the Asus rig I've just built. This link however is just what I was looking for :cool:
 
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