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2500k maxed at 4.6ghz...?

post #1 of 9
Thread Starter 
So decided to start trying to play with my 2500k today and hit a wall above 4.6ghz. 4.7 would not stabilize with these settings:

1.40vcore, LLC: enabled, PLL overvolt: enabled along with all the normal ones disabled (thermal sensor, ect). I've seen people hitting 5.0 with 1.4V iirc, so my cpu just not a high multi one or do I need to push more juice through it?

It's also very picky about starting at ANYTHING over 4.4ghz, (an overclock im very happy with) but would love to push it to 4.6-4.8 for 24/7 use

Batch number is L045A951 if that is of any use.
post #2 of 9
seems like your particular chip needs more volts if it isn't stable at those volts at those clock speeds.
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post #3 of 9
Might just be a slug chip - I got to 5ghz at 1.38v

are you leaving all other voltages (pll etc) on auto?

I have no experience with that board tbh, but if you're able to boot into windows and you're crashing on stability tests try disabling llc to see if that helps.
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post #4 of 9
Thread Starter 
Quote:
Originally Posted by badatgames18 View Post
seems like your particular chip needs more volts if it isn't stable at those volts at those clock speeds.
Yeah and the annoying thing is i found another member who has the same batch and got 5.0 with 1.5V and 4.8 (24/7) with 1.385V 4.7 wont stabilize with 1.415 even

Quote:
Originally Posted by fluxlite View Post
Might just be a slug chip - I got to 5ghz at 1.38v

are you leaving all other voltages (pll etc) on auto?

I have no experience with that board tbh, but if you're able to boot into windows and you're crashing on stability tests try disabling llc to see if that helps.
Jelly
I have pll as enabled, not auto (I was reading that pll enabled usually gives you 4 multi above what it is without)
how would disabling llc HELP stability? doesn't it make sure your vdroop isnt bad, lending to help stability?
post #5 of 9
i would reduce cpu pll voltage to like 1.6 or 1.7. I've found that it allows me to lower vcore by a decent amount. Is cpu spectrum spread on? Also what kind of phase settings are you using?
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post #6 of 9
Quote:
Originally Posted by asuindasun View Post
how would disabling llc HELP stability? doesn't it make sure your vdroop isnt bad, lending to help stability?
LLC can cause voltage to spike on load and dip on idle. I don't believe you can 'turn it off' but you can decrease it.

I have it on the lowest setting i think, but some swear by having it on full whack.
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space heater
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Samsung 840 Pro 256GB 4 x 2TB Barracudas in RAID10 2 x WD Blue 1TB RAID0 2 x 3TB Seagate Barracuda 
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post #7 of 9
Thread Starter 
Quote:
Originally Posted by serp777 View Post
i would reduce cpu pll voltage to like 1.6 or 1.7. I've found that it allows me to lower vcore by a decent amount. Is cpu spectrum spread on? Also what kind of phase settings are you using?
I'll give that a go. Just got 4.6 "stable"(ish) after 10 passes of IBT, will go for a 25 run later.
I dont think i have the spectrum spread on my mobo, so I'll say no? And I believe the board is 12 phase power if thats what you're referring to.
Quote:
Originally Posted by fluxlite View Post
LLC can cause voltage to spike on load and dip on idle. I don't believe you can 'turn it off' but you can decrease it.

I have it on the lowest setting i think, but some swear by having it on full whack.
Hmm, well I tried booting 4.6 w/o llc and would freeze on windows startup, enabling it passed IBT, I guess I'm in the later category lol

EDIT: reducing pll voltage didn't help vcore and made it less stable even lol. Looking like its just a "meh" cpu
Edited by asuindasun - 4/26/11 at 2:59pm
post #8 of 9
Same situation with my 2500k and UD4...
I need 1.4v to keep my chip stable at 4.6
Im beginning to think more and more that its the mobo.
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by Lost-boi View Post
Same situation with my 2500k and UD4...
I need 1.4v to keep my chip stable at 4.6
Im beginning to think more and more that its the mobo.
I was wondering about that as well.. happen to know your batch number?
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