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post #491 of 1498
Quote:
Originally Posted by Voltage_Drop View Post
1. I usually do just do a few strokes, from end to end, measuring the resistance each time to make sure it is not to low from the stock and then check the voltage output afterwards. Penciling is time consuming because it is hard to nail down that perfect resistance. So that is why I usually just use a VR and adjust on the fly.

2. Not sure about the life expectancy of the applied lead because like I said before, I gave up on that method for ease and precision. I believe PizzaMan added some info on penciling in the beginning of this thread and states the best pencils to use for the mod.

EDIT: You have the general idea down of being moderate on the application and checking the output afterwards

What card are you modding, the 4850?
Thanks, REP.
I will be modding my reference 4850...Only want to go to 1.35v or so. A hard mod is not going to be possible for me, neither the skills or tools.
Will probably be doing it next week some time (broadband is cut off, so need something to do...time consuming is good, lol)
post #492 of 1498
Quote:
Originally Posted by coffeejunky View Post
Thanks, REP.
I will be modding my reference 4850...Only want to go to 1.35v or so. A hard mod is not going to be possible for me, neither the skills or tools.
Will probably be doing it next week some time (broadband is cut off, so need something to do...time consuming is good, lol)
No problem Do you have a DMM to measure the resistance and voltage? That is a must whether you are penciling or hardmodding. Good luck on the mod and let us know if you need any help
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post #493 of 1498
Quote:
Originally Posted by Voltage_Drop View Post
No problem Do you have a DMM to measure the resistance and voltage? That is a must whether you are penciling or hardmodding. Good luck on the mod and let us know if you need any help
Yeah have got a digital multimeter...would be lost without it around the house.
post #494 of 1498
Quote:
Originally Posted by coffeejunky View Post
Yeah have got a digital multimeter...would be lost without it around the house.
You should have the required tools then to complete a successful mod then Should be relatively painless. Just dont get to excited and push it to hard and brick your card like I did on my first Vmod . And keep an eye on those temps and test it for artifacting(ATITool, GPUTool)just dont use furmark cuz it will get your FETS hot and is not meant for Vmodded cards. Test the stability of it in games and benchmarks as well

Im sure you know most of this stuff already being you're the ATI Editor and all, just covering bases
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post #495 of 1498
should be sweet man, pencil mods are easy, theres pretty much nothing else that needs to be said other than what vdrop said, iirc one of the 4850 pencil mods wont let you above 1.4v, so go for that one rather if your aiming for 1.35, so there is less to go wrong, like if you pencil it way too much or anything then the highest it will go is 1.4v, so it shouldnt turn it into a paperweight too quickly if you make a mistake, this is just from memory, so if its another card im thinking of then sorry :-P

anyway, off topic, but im pretty bored and keen to do some more mods to my hardware, any idea what i should do? im thinking about buying some 1.2k resistors(normal ones, not surface mount) and then using wires and doing a easier ocp mod for my 8800gt, since im not keen on trying to solder another surface mount resistor ontop of the current one, i could use wire leading to other resistors, thoughts?

and what else can i do when i do that while the iron is nice and hot? its my sig rig, minus the 4870, since its at rma lol, i have seen a whole bunch of P5K mods, i have done the pencil vdroop mod, but it doesnt look like any of them will benifit me unless im doing some hardcore OCing, which isnt gonna happen with the stock e8400 heatsink(1.5" pure alu :-O)
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post #496 of 1498
Thread Starter 
I think your idea on the OCP mod would work just fine.
    
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post #497 of 1498
yea, just checking having wires ect wont add resistance or anything like that
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post #498 of 1498
Thread Starter 
Not enough to matter. Just tune to the desired resistance before you solder.
    
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post #499 of 1498
was meaning non variable ones, but yea, sweet as :-D
will probably give that a go when i get a chance to head up to dse
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post #500 of 1498
Quote:
Originally Posted by coffeejunky View Post
Thanks, REP.
I will be modding my reference 4850...Only want to go to 1.35v or so. A hard mod is not going to be possible for me, neither the skills or tools.
Will probably be doing it next week some time (broadband is cut off, so need something to do...time consuming is good, lol)
When modding a 4850 you should ALL TALK WITH ME!!!
I ve modded 3 of them!!!
1,35 will give u 800core easy maybe 820 but be sure to cover the pencil or it will move from the resistor!
Hard mod d be the best choise!These cards go HIGH!!!But u need good cooling!!!
    
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