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4,3GHz stable, 4,4GHz no post

post #1 of 24
Thread Starter 
Hi there.

Just started overclocking my i5-2500k today. All seems fine and dandy, untill i set the multiplier to 44 instead of 43.

It simply won't post. Just a black screen.

Temperatures were around 60C during IBT (for 4,3GHz that is), and I've got the vcore set to offset -0,005 or something like that. Fixed 1.380V didn't allow me to post either.

All voltages are set to auto except PLL (1,7) and VTT (1,1).
Spread Spectrum enabled. C-modes etc enabled.
PLL Overvoltage disabled.
Load line calibration: Level 1 (highest afaik, not quite sure)

Turbo Boost Power: Manual
Short/long duration power limit: 250
Core current limit: 250

What got me wondering is that this guy:
http://www.overclock.net/intel-cpus/...z-no-post.html
Seems to have the exact same problem, sort of anyway. With almost the same motherboard.

Any ideas?

Thanks in advance,
Xylian
Edited by Xylian - 10/27/11 at 3:17pm
    
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post #2 of 24
Try setting VRM freq. manually and whack it up to full.

Are all the CPU settings (C1E etc.) set to auto?
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post #3 of 24
did you update your bios to the latest version?
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post #4 of 24
Thread Starter 
Quote:
Originally Posted by fluxlite View Post
Try setting VRM freq. manually and whack it up to full.

Are all the CPU settings (C1E etc.) set to auto?
I don't believe I have an option for VRM. freq (Asrock bios)
CPU settings are set to auto for the most part yeah, except the virtualization stuff.


Quote:
Originally Posted by raclimja View Post
did you update your bios to the latest version?
Yep.


Also added some more info in OP.
    
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post #5 of 24
I'm having similar trouble getting from 5.1Ghz to 5.2Ghz. 5.1 loads into windows, 5.2 bsods :/

But anyway, for you it's amatter of changing one or two things in the bios.

Set LLC to Extreme/Maximum
Turn off PLL OverVolt

So yeah
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post #6 of 24
Usually you can get buy with LLC set to Ultra High.
post #7 of 24
Turn on ill overvoltage.
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post #8 of 24
Thread Starter 
Quote:
Originally Posted by PathOfTheRighteousMan View Post
I'm having similar trouble getting from 5.1Ghz to 5.2Ghz. 5.1 loads into windows, 5.2 bsods :/

But anyway, for you it's amatter of changing one or two things in the bios.

Set LLC to Extreme/Maximum
Turn off PLL OverVolt

So yeah
Well.. As I wrote in the first post, my LLC is already set to max and PLL overvolt is deactived. I appreciate your help, but at least read my post

Quote:
Originally Posted by Sumatra View Post
Usually you can get buy with LLC set to Ultra High.
It already is.

Quote:
Originally Posted by JedixJarf View Post
Turn on ill overvoltage.
I'm guessing you mean PLL. Yeah I tried that, didn't change anything. Still stable at 4,3 and no post @ 4,4GHz :/
    
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post #9 of 24
I was meant to post this last night but got distracted, sorry try setting your LLC to level 3 or 2 at the max, I had it on level 5 and it was kinda rubbish with 1.290v 4GHz but I got a lot of vdroop, so I set it to 1 with exactly the same overclock and I got BSOD's all over the shop, so I set it back to 5.
Read recently though that the optimal setting is 3 (apparently 1 overvolts or something, not sure of the significance of this) so I set it to 3 and now running 4.4GHz with 1.30v stable, same temps.
Edited by timmygcsc2308 - 10/28/11 at 1:10am
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post #10 of 24
I'll post assume pics of my settings when I get home.

Sent from my SCH-I500 using Tapatalk
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