Duron o/c ... help!

[gummiely]

I'm sure some others have run into this very same problem, but i'm too lazy to look for the exact situation in another thread, so please help me. =)

Here's the lowdown:

I have a Duron 600(week 23) and and Epox ep8kta2 mobo.
I used the pencil trick.
Got it to 650 by changing ratio to 6.5 (vcore at default: 1.56).
Then tried ratio 7.0 ...no post.
Changed vcore to 1.7 (shows as 1.75 in bios) -> auto defaulted ratio to 6.0 =(
Confused =\

Now if i'm correct, the "unlock" was in fact effective. But it just won't o/c any higher. So does that mean my cpu is crappy, or do i just need to redo the "coloring"?

 

[paulip88]

There may be the possibility that you may have not penciled in the bridges well enough. Usually when this happens only certain multipliers are available.

I have also experienced instability after using pencil awhile and so have other people, so this may be a concern as well.

 

[Peter C.]

Unlocking my TB 800 only works under the following conditions:

1. I have to connect only the first three of the L1-bridges. Painting the fourth results in a not overclockable CPU.

2. My CPU doesn´t like .5 - multipliers. It refused to work at 850, 950 and even 750, but runs stable @900. I even had it for a few days @1000 without trouble, but returned now to 945, as there is no need for higher speed right now.

 

[Dan]

I had to redo the pencil trick on my first Duron (a 600MHz) 6 times before I got it right -- and stable at 900MHz. Practice makes perfect though. I upgraded to a Duron 700 and got the pencil thing right on the first try. She runs stable at 1083MHz.

So the moral of the post is, "Don't give up. Try again."

 

[gummiely]

ok, sounds good guys. i'll try "repenciling" then, i guess. wish me luck! =)

 

[IaPuP]

The 4th L1 connection is what controls the 0.5 multiplier. There is no reason that connecting the 4th bridge will hurt overclockability unless your motherboard is damaged.

Eric

 

[gummiely]

well, i went ahead and took out the cpu and carefully erased and "re-pencilled" the L1 bridges. (using a magnifier to carefully inspect this time) but i'm still getting the same results. can't get it over 650mhz (multiplier@6.5, vcore default@1.55). i tried increasing the voltage but still no post. so what now? am i screwed? =\

 

[Hala]

repencil, repencil, repencil and repencil
if it doesn't works try pen for fixing tracks(paint with silver powfer)

 

[BadBrad]

Forget the pencil!!! Get yourself a Rear window defroster repair kit manufactured by Loctite. Most auto parts stores have them and usually cost around $10. I used the blunt end of a sewing needle to put a small dab of the liquid between the two posts at each of the 4 positions at the L1 bridges. Worked flawlessly the first time. The problem with using the lead of a pencil is that the amount of graphite in each of the leads varies greatly. Also the amount of conductivity within the lead is miniscule compared to the loctite and can actually degrade with time so you would have to pencil in the bridges evey so often. Once the Loctite dries it is semi-permanent. It won't be disturbed by normal handling but can be removed using either fingernail polish remover or acetone.

 

[FiDo14DiDo]

What mobo r u using? Did u set the jumpers correctly (if there are any)? If you did...keep pencilling (is that a word????)

 

[gummiely]

i'm using an Epox EP-8kta2 mobo. it uses dipswitches rather than bios for multiplier and voltage adjustments. that's how i've been trying it. i'll try to "re-pencil" one last time and then resort to the loctite method if it fails again. i'm curious tho... is is possible that the cpu is very well maxxing out at 650? it's a week 23 cpu, if that makes any difference..

 

[IaPuP]

Bolt down the heatsink, throw the voltage to 1.85V and see if you can hit 750.

It could be that the CPU is a dud...

If you can get above 650 then maybe you didn't screw up the pencil trick.

Make sure the pencil marks don't touch eachother too!!

Eric

 

[ravedave]

I had a similar problem with my D700

I used a regular plain old #2 pencil none of this mechanical crap.
Sharpen it really well. go into a room with bright light.
If possible use a magnifying glass.
Layer on the lead , make sure you have a bunch of lead connecting the two.
if you have dark thick lines (not touching) and it doesnt work then I have no idea whats wrong.

 

[gummiely]

WOOHOO! It finally worked. 3rd time was the charm, i guess. =) I put on the pencil marks nice and thick, as suggested. Well, i got it up to 1ghz @ 1.85 vcore (altho it showed as 1.9 in bios) but no boot to windows. It did boot ok tho, at 950mhz, but i feared the temp would get 2 high, so i went down to 900mhz(100fsb x 9.0ratio) and it's running stable now. I'm happy. =) Thanks for the help and support, guys!

ps. oh yeah.. has anyone else run into this weird voltage problem? the bios reports the vcore as .05 above what i set it to with the dipswitches.