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i5 3570k - Multiplier capped at 42? - Page 2

post #11 of 21
Thread Starter 
So what I did was:

The BCLK went from 100 to 104.8, a 4.8% increase.

The multiplier went from 3.6 to 4.2, a 17% increase.

So most of the overclock is still coming from the higher multiplier. What I want to know is if this modest 4.8% BCLK overclock is really something to worry about?
post #12 of 21
Quote:
Originally Posted by theCombo View Post

So most of the overclock is still coming from the higher multiplier. What I want to know is if this modest 4.8% BCLK overclock is really something to worry about?

Potentially.

The DMI/PCI-E bus is synched to the BCLK, thus everything in the PCH is running 4.8% faster than it should. This is potentially enough to interfere with SATA transfers and HDD/SSD controllers.

Problem is that you may not know if it's causing issues until something serious happens to your data.
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post #13 of 21
Thread Starter 
What are the chances of Amazon taking it back after I already used it?

Is there any data anywhere to confirm that a modest BCLK overclock is potentially dangerous?

I have been stress testing for a while now with AIDA 64 and all seems fine with max temperature of 69oC for any individual core.
post #14 of 21
Ahhh classic mistake. Good that you figured it out, but damn, I hope you didn't get tricked into getting a non unlocked version :S
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post #15 of 21
Thread Starter 
Nah entirely my fault, thought I was getting a bargain as this was slightly cheaper (obviously missed the K on the other models). That's why I'm a bit reluctant to send it back.
post #16 of 21
Thread Starter 
And it's still stable at 1.2v so probably temperatures will be lower too now.

Think I will stick with this unless someone can provide empirical data suggesting a modest 4.8% BCLK overclock can potentially corrupt data / shorten hardware life etc.
post #17 of 21
Quote:
Originally Posted by theCombo View Post

What are the chances of Amazon taking it back after I already used it?
Is there any data anywhere to confirm that a modest BCLK overclock is potentially dangerous?
I have been stress testing for a while now with AIDA 64 and all seems fine with max temperature of 69oC for any individual core.

Dude... No offense meant here but the best confirming data that raising bclk is potentially dangerous is a guy with over 1500 rep's next to his name saying its potentially dangerous. If you google raising bclk and you will find literally tons of info, including pros and cons.
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post #18 of 21
If I ran the parts of the chipset responsible for SATA on my sig rig named Wrath faster than stock, it would corrupt the OS in about 2 months.
Bumping the clock 4% without touching any of the multipliers was enough to do this. AIDA 64 does not stress the chipset in such a way to expose HDD corruption issues. Unlike wrath, your system does not have multipliers to bring parts down to stable ferquencys (if I dropped multipliers to reasonable levels and gave it some voltage, I could push the reference clock as far as 330 (stock is 200) without the chipset giving me issues.)
4.4 is 200 mhz faster than 4.2 ghz, is 200 mhz worth risking corrupting your data?
Keep backups, you will need them.
Edited by H-man - 12/9/12 at 3:46pm
 
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post #19 of 21
if you want to OC, try to get amazon to take it back. you will have to pay to mail it back, maybe even a small restocking fee, but upping your BLK is bad news. if you don't wanna return, then OC'ing must not be a high priority, and id run it stock or close to.
     
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post #20 of 21
Thread Starter 
Ok thanks for the help guys. From what I've read Amazon are good with returns so I ordered a 3570k (due for delivery tomorrow) and will send this one back as soon as it arrives. Hopefully they won't kick up a fuss.
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