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High voltage needed for 3570k

post #1 of 25
Thread Starter 
I've been overclocking my 3570k now that I finally got decent cooling in for it but I am running into a problem.

My current OC is 4.2ghz (42x100mhz)
And for some reason it is taking 1.26vcore to get this to run stable which seems very high compared to some of the ones I've seen. The lowest overclock I've seen at that voltage is 4.4ghz.

Motherboard is Asus Sabertooth Z77.

Settings are:
Clock Frequency: 100mhz
Vcore: 1.260
DDR Voltage: 1.500
VCCSA Voltage: 0.92500
CPU PLL Voltage: 1.80000
PCH Voltage: 1.05

CPU Load-Line Calibration: High
CPU Power Response Control: High
CPU Current Capabilioty: 100%
CPU Power Thermal Control: 130°
CPU Voltage Frequency: 350Khz
CPU Power Phase Control: Extreme
CPU Power Duty Control: T.Probe
post #2 of 25
It's not that high

That's normal for the 3570k

Every chip is different
post #3 of 25
Every chip is different. Keep pushing it as those are low volts
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post #4 of 25
Thread Starter 
What about lowering the PLL voltage?
Hear a lot of people say to lower it down and that can sometimes help, 1.8 seems awful high for that to start with.
post #5 of 25
Quote:
Originally Posted by OsiViper View Post

What about lowering the PLL voltage?
Hear a lot of people say to lower it down and that can sometimes help, 1.8 seems awful high for that to start with.

1.8v I believe is Intel spec
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post #6 of 25
Thread Starter 
Well, I got it to 4.5 but took 1.36vcore to get it stable enough just to run prime95 for more than a minute.

Temps are mid-low 70's - rare spike to 80-82
post #7 of 25
I just started playing with my overclock tonight, got it running at 4.5 ghz at 1.256 volts. shes been running a good hour now and I am seeing temps no higher then 64 C. But that is water cooled and each chip is different, Silicon Lotto rolleyes.gif

I am going to see if i can lower my volts a wee bit and see what I end up with.
Hopefully we both can achieve what we are aiming for tonight!
post #8 of 25
Thread Starter 
Good luck!
As with mine, I think i got a dud.. mad.gif

Cant bring it past 4.5 even at 1.4vcore and really don't want to try upping voltages anymore. So I guess I will just have to settle for 4.5ghz.

Not as high as I wanted to push it, but 1.1ghz increase isn't bad.
Just really wish i could keep vcore lower for 24/7 running. 1.36 just to get to 4.5ghz seems a bit much..
post #9 of 25
Try playing with PLL voltage. My asrock tends to like 1.832 - you might find a sweet-spot for yourself as well as 1.4 vcore seems kind of high for 4.5
Edited by jellybeans69 - 10/19/12 at 12:47am
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post #10 of 25
Thread Starter 
Yep, and definitely hit the proverbial brick wall as it were.
46 multiplier and 1.41v, within 3 seconds of starting prime95 I get a BSOD.
tried messing with the PLL voltage up to 1.825 and as low as 1.575 and still same results.

So unless I'm missing something looks like it's as far as I'm going.
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