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post #1281 of 1336
My last chance is to volt mod my ADP4100 chip on my 770 GTX gigabyte, anyone knows how to do it?


post #1282 of 1336
Quote:
Originally Posted by Dalianus View Post

My last chance is to volt mod my ADP4100 chip on my 770 GTX gigabyte, anyone knows how to do it?



This pic is from a GTX275.


Now this FB mod is actually a no load feedback mod. You can get slight gains during load situations, but you can only expect to get .05-.1v, .1v is you're lucky. The OCP mod is merely a switching frequency mod. May help stabilize the IC, but not going to do a whole lot. True OCP modification would take a good bit of probing and mapping out the layout, as the OCP can be set a few different ways for this IC.

This most stable mod would be to preform a VID mod. Not quite as tedious as trying to determine the OCP layout, but would require some basic resistor mapping and a steady soldering hand, as the moving of tiny resistors will be required.

If you want to start mapping the VID area, start by mapping which resistors are connected to which pins.
LEAD Technologies Inc. V1.01
    
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post #1283 of 1336

GK110

780 DCII 

 

resistor removed @ PGR100

pins installed for mod points on backside of PCB (along with ground pin)

pins installed for vmeasure on frontside of PCB

heatsink made for VRM phases 

heatsink made for inductors

GPUv

MEMv

PLLv

 

 

 

Completed: GPUv, MEMv, PLLv

 

 

 

 

 

Good benching-


Edited by CL3P20 - 4/16/14 at 8:49pm
post #1284 of 1336
Sexy.

What are you going to be using, clip on probes from your DMM?
    
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post #1285 of 1336

thinkin about laying fixed resistors across the pins... for mod, I added these for vmeasure to the pins on the front side of the PCB

 

post #1286 of 1336
Thought maybe you might be using something like this. Use them in lab all the time now.

    
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post #1287 of 1336

Ahh..got some of them for testing, and use them for mobo mods, but this GPU is for L0ud.. and he doesnt mod, so Im putting in some efforts to make benching the card painless for him. He likes a pretty clean setup..trying to keep it extra tidy ;)

post #1288 of 1336
They look sleek. thumb.gif

Performing the mod is the icing on the cake. Gives you the opportunity for artistic expression. smile.gif
    
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post #1289 of 1336
This isn't related to volt mods but I thought this was probably the best place to ask. Anyone soldered their atx connector onto the back of their mobo, or know someone who has? Or maybe has any advice as so how hard/possible/dangers it might be? thanks
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post #1290 of 1336
Quote:
Originally Posted by SeeThruHead View Post

This isn't related to volt mods but I thought this was probably the best place to ask. Anyone soldered their atx connector onto the back of their mobo, or know someone who has? Or maybe has any advice as so how hard/possible/dangers it might be? thanks

The issue with this would be the pins wouldn't match on the reverse side of the board. I would suggest using an extension cable and solder the wires correctly on the back.

http://www.ebay.com/itm/24-Pin-ATX-Power-Extension-Cable-RoHS-Power-Supply-to-Motherboard-12-inch-/380875394179
    
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