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dergeert |
Erstellt: 13:10 am 28. Nov. 2004 |
sorry, i cant't get involved too much with all the vid lines etc, this is getting confusing  however, it seems you have got the right idea now.
if you have chosen the right pin, probably the varnish is no good.
here's a little mod i did yesterday to my mobo, because i got sick of cutting the bridges of all new cpu i want to undervolt:
i carefully enlarged one pinhole in my socket. when this pin is deactivated you get a voltage drop of -0,4V for any socket a cpu that operates at >=1,5V standard.
after this i was ready to isolate the pin with a delicate cable sleeve:
damn i isolated the wrong one...
here i chose the right pin and cut the isolation to length:
the so-prepared cpu fits into the modded socket and operates at vcore-0,4V if vcore was 1,5V (or more) initially.
when removing the cpu the tiny isolation bit sometimes likes to stay in the socket, so remove it with a needle without pushing it in. also make sure pushing it up all the way on the pin in the first place.
i think this should help as it is an almost non-destructive method (especially cpu-wise) 
(Geändert von dergeert um 17:18 am Nov. 28, 2004) |
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innuendo |
Erstellt: 22:42 am 27. Nov. 2004 |
yes, you are right.
you do not need to isolate all pins however, because some probably are not connected in the L7-bridge, so they are "isolated" already.
also you only need single wire bridges, you do not need to put them all in as shown in the pinmod guide, because some are already connected in L7.
what you need to do really is take a good look at the pinmod guide, the painting guide and maybe the schematics and see how they all work together.
what is your current vcore/L7 configuration?
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Okai.. let's go on with my mod... :
I tried to go from 1,750 to 1,450volts ! After my experiments, the voltage is at 1,850 ... it dosen't work ! argl !
I'll explain you what I've done, and you'll tell me what's wrong.
The original setting for the L7 bridges are :
| | X | | ----> "|" stands for closed "X" for opened
vid4 3 2 1 0
I want to achieve this setting :
X | | | |
vid4 3 2 1 0
So... I only have to change the state of vid4 and vid2 (AM I WRONG?).... let's go.. !
This is what i've done :
First : Isolating vid4 pin on the cpu (by using varnish)
Second : Put a wire bridge beetween two socket holes : vid2 and vss.
When i realised that it dosen't worked, in unpluged the CPU and take the varnish to paint another layer on the vid4 pin ! But, it dosen't work : the result is exactly the same : my vcore is set to the maximum : 1,85volts (also a jump of +0,1volt)
What are my results saying ?
My current setting is 1,85volts, that is to say L7 = X X X X X
I conclude that the wire bridging of vid2 works well, but the isolated vid4 pin not !
Do I forget something ? Probably may I isolate the vid4 pin AND put another wire bridge somewhere... ? May I simply cut the vid4 pin ?
In my bios, the value displayed is exactly the same as before, but motherboard monitor or sisoftware Sandra says that the voltage is dropped to 1,89volts (1,85 in fact). This is bizarre..... (why is my BIOS reporting a bad value?)
Please tell me where are my errors... !
(One time, i'll do it ! I think i'm not far from the end)
(Geändert von innuendo um 22:50 am Nov. 27, 2004) |
|
dergeert |
Erstellt: 3:11 am 27. Nov. 2004 |
yes, you are right.
you do not need to isolate all pins however, because some probably are not connected in the L7-bridge, so they are "isolated" already.
also you only need single wire bridges, you do not need to put them all in as shown in the pinmod guide, because some are already connected in L7.
what you need to do really is take a good look at the pinmod guide, the painting guide and maybe the schematics and see how they all work together.
what is your current vcore/L7 configuration? |
|
innuendo |
Erstellt: 3:02 am 27. Nov. 2004 |
Okai... thanks ! I think i have understand all of the subject... (at least all of what i should do)
you will then know, which vid-pins to rip out in order to get to zero voltage (also you can rip out all five of them).
then you can apply the pinmod with little wire-bridges to set your desired voltage.
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If I really understand what you said, this is what i have to do (for example) :
* First : cut all VID pins : from vid0 to vid4
* Second : use wire bridges to set my voltage : By pluging wires in the socket and each time beetween 2 holes : for example, beetween the place where "vid3 pin" should be and "vss".
Do you confirm ? (sorry for making you repeat, but consider i'm a real beginner in <"computer harware-modding">
Again, Thanks a lot for helping me.
If you confirm, i will test it and come back to say if something works !
(Geändert von innuendo um 3:04 am Nov. 27, 2004) |
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dergeert |
Erstellt: 2:50 am 27. Nov. 2004 |
i never tried the paint method but i thought of it already, too, and possibly it will work.
your voltage will drop if you paint vid pins that are connected on top of the cpu (L7 bridges), just as if you had cut that bridge.
possibly the voltage will be too low for your cpu to run, so you can raise it again step by step by using wire-bridges on other pins.
(Geändert von dergeert um 2:53 am Nov. 27, 2004) |
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innuendo |
Erstellt: 2:40 am 27. Nov. 2004 |
Okai ! Thanks a lot !
I think the best way to do it is to do something from wich i can go back... (that i can undo).
The only "safe-mod" I know is to take some paint or nail varnish and paint the pin that i should cut, on the backside of the CPU (where all pins are)
Is it a good way ? 
So... we must resume :
"To undervolt my CPU, the only thing I have to do is to take some varnish a paint the pins that i want to set to 0 (or 1)"
No need of wire-bridging or anything else ?
(I recall you that my motherboard isn't able to change any voltage at all: nor with bios, nor with any other software...)
(Geändert von innuendo um 2:43 am Nov. 27, 2004) |
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dergeert |
Erstellt: 0:59 am 27. Nov. 2004 |
you must cut something in order to lower the voltage, be it the bridges on top of the cpu, lines on the mobo or rip out pins.
just connecting pins will only result in higher voltage or no change at all. |
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innuendo |
Erstellt: 19:18 am 26. Nov. 2004 |
First of all, thanks a lot for answering my message and trying to help me !
just check your default core voltage with a system monitoring tool (or maybe you already know), enter it in the pinmod guide and compare the resulting picture to the pinout in the datasheet.
you will then know, which vid-pins to rip out in order to get to zero voltage (also you can rip out all five of them).
then you can apply the pinmod with little wire-bridges to set your desired voltage.
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This is exactly what i've done, but it dosent work. To do it, i used a wire bridge beetween VID4 and VSS as you can see on the upper picture. If i correctly understand, this is the same as isolating the
VID4 pin.
Am I wrong ?
May I furthermore cut de VID lines on the motherboard or the voltage regulator or are the wire bridge(s) sufficient ?
(Geändert von innuendo um 19:26 am Nov. 26, 2004) |
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dergeert |
Erstellt: 12:12 am 26. Nov. 2004 |
why don't you try breaking some pins as i suggested already?
or get a better cpu/board.
there's nothing else i could tell you, really  |
|
innuendo |
Erstellt: 9:30 am 26. Nov. 2004 |
Can't anyone help me ? 
Please ! Tell me anything...
I want to change the vcore for my processor ! |
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