Pencil mod - which pencil?

Lechu1777

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Jul 30, 2013
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Hello,

I'm trying to pencil mod my mobo, but the only pencil I have ready at hand is 2H. I've read that pencil should be HB or B. But I've tried anyway and unfortunately it changed nothing at all. Vdrop and Vdroop stayed exactly the same. Is it pencil's fault? Should I use B pencil? My mobo is EP45-DS3R and it's great mobo, but it doesnt have LLC feature implemented and the Vdroop is too high, under load (Prime95) it causes 124 BSOD which is not enough voltage. In normal usage everything seems to be ok, but I know that it's a hardware problem and it should be solved. Thanks in advance for any response.
 

USAFRet

Titan
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Having never heard the term "pencil mod" before, I had to look it up.
Oh my.

To me, that sounds like:
1. An insanely bad idea
or
2. If it doesn't kill anything, it is unlikely to provide any benefit.

I can't imagine the specific density of the pencil lead would make a real difference in the overall (tiny, if anything) performance increase.
 

Lechu1777

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Meeh go did some more diggin then. I'd like someone experienced to help me here (no offence). It's commonly know mod for the Vdroop issue and moreover it's pretty much easy to explain (I'm electrical engineering student), it's not rocket science, trust me. But thanks for trying to help, tho!
 

USAFRet

Titan
Moderator


I get the concept. Creating a wider/thicker path for greater electron flow from point A to point B..

What I'd like to see is a before and after performance graph of this procedure actually doing something.
 

Lechu1777

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http://www.overclockers.com/forums/showthread.php?t=628673

EDIT/ Okay I used 8B pencil and it worked ;) I had to do that a few times, I'm not experienced enough in pencil modding obviously. Finally, I have 100% stable Q6600@3,4Ghz without increasing Voltage too much! Before pencil I had 1,28V under load (Vcore), now it's 1,312V under load :) Moreover, it's even safer and better for mobo, because now I can lower the voltage in BIOS because I need only 1,29-1,3V under load to achieve stable CPU ;) Thanks for help!