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General GeForce 210 vmod thread - Page 21

post #201 of 281
And now in English, please...? smile.gif
post #202 of 281

*some old mobo's I modded had single resistors tied to mosfets that set voltage output..[for the NBv circuits] like the mosfet was being driven by another source.. like voltage divider.. with a single resistor to lower input to the correct level for appropriate output. To mod these.. it was just VR to the resistor .. or pencil.

 

 I cant help but think thats whats going on with this card.. as there is only 1x inductor and IC for voltage control. If so.. there should be some continuity between the 'RAM' fet and the GPUv inductor I think.

 

{Dan may be able to shed soem more light on this idea though..} wink.gif

post #203 of 281
So you're saying the voltage may be controlled with the same IC and increases proportionally with the Vcore?
post #204 of 281
Thread Starter 
Rayce, specifically what DMM are you using? make and model.
    
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post #205 of 281
Just some cheapo 10€ DMM called "Dünni 07974", why?

post #206 of 281
Thread Starter 
Some of the good Fluke meters have frequency detection settings. If you had one like that, we could see if that mosfet is being switched at all.
    
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post #207 of 281
Nuke is it even worth vmodding the mem most of them had little to no gain.
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post #208 of 281
Thread Starter 
Lots of factors determine that. More volts helped my hynix chips, though only like 30mhz.

At this point I'm just interested in how this card is designed wink.gif. It's a challenge.

I'll take a closer look at the card later. I really think it is something along the lines of a simple mosfet amplifier, like a common source amp. Just needs resistors, a mosfet, and different voltages.
Edited by just_nuke_em - 12/20/12 at 10:54am
    
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post #209 of 281
Quote:
Originally Posted by Rayce185 View Post

So you're saying the voltage may be controlled with the same IC and increases proportionally with the Vcore?

 

in essence.. yes. Though its likely being 'knocked down' with a simple resistor to control output.

 

ie- direct fed mosfet from 3.3v PCI-E input.. with single resistor to choke input enough to make output voltage correct.

post #210 of 281
Can't you desolder the input leg and fed 5v into it instead of 4.18v should output 1.65-1.75v
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