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Is it safe to keep your overclock (P8p67) with low temps ?

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July 23, 2011 10:13:52 PM

I have a p8p67 Rev 3.0 2600 3.40Ghz

My Turbo Multiplier is already at maximum (42 x 100)
Now, I'm increasing my BCLK bit by bit.
So far, so good.

I have a Zalman cooler and 2 x cooler master blade master
So, my temperatures are still good at maximum stress.

My question is: ones I have found the maximum stable BCLK
and my stress test is still good after 24 hours, is it safe then
to keep these overclocking settings forever ?
Or are there still risks that my motherboard will be damaged soon ?
(it's lifetime is still decreasing with other words)

Jack
a b V Motherboard
a b K Overclocking
July 23, 2011 11:58:23 PM

Not worth OC'ing a non K by uping the bclk. a 10 % increase in normally not detectable in normal operation and by increasing bclk you are also increasing the freq to other components such as the pci-e which should be kept close to 100 mhz.
a c 107 V Motherboard
a b K Overclocking
July 24, 2011 12:33:48 AM

There is actually more chance of data corruption when you increase the BCLK setting. It's because you're overclocking the hard drives, CD/DVD drives and other components, which is a bad idea.
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July 24, 2011 3:46:30 AM

Much thanks for your replies.

I will change the BCLK back to 100.
With prime95 & CPU-Z, I have now 3.90MHz instead of 3.40MHz
It's not much more, but at least it's something.

Better be on the safe side ;) 

Jack :) 
a c 207 V Motherboard
a c 145 K Overclocking
July 24, 2011 4:04:42 AM

BCLK OC'ing was the thing with the Intel 9xx series CPU's but w/ SB the multiplier is selectable and most OC'ing is done there. You can squeeze the BCLK t 103 or even 105 if ya wanna push it, but most consider it more trouble than its worth.

I'd get the CPU max to around 4.6 - 4.8 (whatever you can maintain good temps with). What I normally do w/ the 2600k's is set up two separate BIOS profiles.

24/7/365 OC - Set CPU to max multiplier of 44 - 46 (again, what temps will allow) with HT on.

Extreme Gaming OC - Set CPU to max multiplier of 48 - 50 (again, what temps will allow) with HT off.

With a good cooler, your temps should be OK, low max multi's will be needed with lower performing coolers ..... not all CPU's will do 4.8 tho

1. Approximately 50% of CPUs can go up to 4.4~4.5 GHz
2. Approximately 40% of CPUs can go up to 4.6~4.7 GHz
3. Approximately 10% of CPUs can go up to 4.8~5 GHz (50+ multipliers are about 2% of this group)

OC Guide (long version) http://hardforum.com/showthread.php?t=1578110

OC Guide (short version) http://www.guru3d.com/article/asus-sabertooth-p67-tuf-r...





a c 107 V Motherboard
a b K Overclocking
July 24, 2011 4:17:35 AM

Nice informative post. Unfortunately, the OP has a non-K i7-2600 CPU so it doesn't apply. :p 
October 10, 2011 3:21:25 PM

The non K version of i5 2500 can be overclocked to a maximum of 4.3Ghz(1 core active) and 4GHz(all 4 core active) on an ASUS p8p67.Set the multiplier to 41 , BCLK frequency to 105.4 and increase the CPU vCore by 0.025V.Thats it. Ran prime95 stress test for about 30 minutes and everything was perfectly stable.

Note:I was successful in pushing the BCLK to 106Mhz and didn't try anything afterwards as the motherboard temp would reach 40C.For stability I pushed back to 105.4.
!