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Is 1.280v good for 4.5ghz on a 2500k - Page 7

post #61 of 83
Thread Starter 
Quote:
Originally Posted by stubass View Post

well temp or TJmax is 98*c and voltage 1.52V sounds about right but try to keep it as low as possible.. at 98*C the system should shut down smile.gif

Cool, plenty of headroom then @4.8GHz prime max temp was 76c after 12 hours biggrin.gif
post #62 of 83
Quote:
Originally Posted by UpgradeSolution View Post

Cool, plenty of headroom then @4.8GHz prime max temp was 76c after 12 hours biggrin.gif

nice one, next step now to 5 thumb.gif
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post #63 of 83
Very nice, my 2500k is rock solid @4.5Ghz with 1.25V, have benched @5 Ghz with 1.4V but hit ultra high temps. Don't really care to get a watercooling set since it will do anything I ask of it easily at 4.5 plus it runs super cool with my hyper 212 at these clocks/volts so I just keep it there.
post #64 of 83
Quote:
Originally Posted by UpgradeSolution View Post

No matter what I do at 50 multi it crashes I tried setting vcore to manual 1.400 and I also tried .100 offset it just stays black turns off and when I try to boot just comes on but I get no video or anything. :/
It is stable (not crashing so far in P95) however now with .010 offset for a 4.7ghz oc with the vcore reported by cpuz @ 1.288v and the same temps as the 4.5ghz oc.

You tried enabling internal PLL Overvoltage right?
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post #65 of 83
Quote:
Originally Posted by pursuinginsanity View Post

No, bro, unless you're under 1.1v at 4.5ghz, you're doing it wrong.

Please say this is a joke
    
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post #66 of 83
Thread Starter 
Quote:
Originally Posted by pent View Post

You tried enabling internal PLL Overvoltage right?

I am gonna be 100% honest I have no idea what that does lol. Mind helping me?
post #67 of 83
VCCPLL: Voltage used by the CPU clock multiplier (PLL, Phase-Locked Loop). This voltage can be changed through an option called “CPU PLL Voltage.”
source

btw it is recommended that you dont exceed 1.9V smile.gif

some interesting facts here towards the end of the first post
http://www.techpowerup.com/forums/showthread.php?t=138384
Edited by stubass - 4/8/12 at 2:26pm
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post #68 of 83
Quote:
Originally Posted by UpgradeSolution View Post

So I got it to 4.6 stable @ 1.280v for 1 hour so far with Prime95 extreme test. @4.7 it crashes within 10 minutes so it will need a bit more voltage. Temps are 58,63,62,63 on my cores right now during Prime95. For some reason core 1 likes to run a lot cooler.

1 hour isn't much time for Prime... 10-12 would be ideal and 6 minimum.
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post #69 of 83
Quote:
Originally Posted by Millz59 View Post

That's a nice OC.
I need 1.328V for 4.5GHz....
Voltages are fine really, no need to lower them further, I would think this chip could hit 5GHz

i need the same voltage. can you get to 5ghz at 1.47v?
post #70 of 83
Very good. Mine runs about the same -1.256V @4.5GHz.. But it takes a lot more volts for 4.6 GHz to get a stable clock.on mine - 1.288V.
Edited by GeneO - 4/8/12 at 7:21pm
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