I would just slap it over top of it and check it w/ the dmm.... The worst that can happen is it will not work. :thumbsup:

No I have the 584 with infineon chips. Worse mem clocks but longer lasting RAM...thats for the original 7900GT's.

It's similar but OCP is said to be different (although they don't work apparently on the newer cards) the left OCP chip in that image is actually add a 100K in parallel (or pencil mod it to 47K) for switching frequency stability beyond 1.2volts.

http://www.xtremesystems.org/forums/...61&postcount=2 This post explains it.

vMem is the same i think but even with mod not expecting more than 900MHz due to the ICs.



Thanks will do that...

Curious though these mods are showing 10K 50K 100K variable resistors being added and what I measured on both 7600s and the 7900 the resistance ranges from .44 kOhm to .67kohm without power applied... (would not think it needs power applied for resistance maybe it does though).

Isn't the formula "measured resistance x20?" or something like that?

Yes, measure resistance without power.

I had a couple EVGA 7600 GT's I tried to mod and bench a few months back, but the memory was super ultra crappy crap. So crappy, that a hefty GPU overclock was completely worthless. I'll see if I can find the mods.

If you have it set to 20KOhms yeah I think so... mine is auto ranging though so I thought should be straight up.

yeah these ones have crap mem too.. DDR2 so not expecting a huge improvement without getting them up to speed. think I had almost NO overclock though with them at default voltages..



Poking around hte back of the N7600B rev 2.3 PCB (vmods I found are for 2.2) Im guessing hte read points are on the front of the card. I found 12v read points a HUGE amount of 5V read points...

The caps by the gpu core read 1.35v except the lowest one reads 1.25v,

Think I should give up on this crad. Not going to get me a lot of boints any way. Just move on to the good 7600gt KO, the 7800gts the 7900gt and the 9500Gt.

I got pictures of everything and when I am all done and everything works I will document them in the threads here.

One thread per card for easier reference.

Just measured the 7600KO and looks like the mod will be good and easy to do. Wish I have not wasted so much time on the rev 2.3 card.

Okay looks like this is going to take a little longer than I had hoped :(

Cant find my molex tool, my razors ARGH. I hate doing shit half-assed whne I do own the correct tool for the job. Going to tear everything apart get organized and start anew in a couple of hours. With a clean and tidy work space (at least until I start modding again).

Sucks trying to cram a living quarters, office, work shop and benching area into one room, but its only for a couple more months.

Got any 2.5-6.3v caps on the card? If so, what are the voltage readings under them? Here, you should find a set for GPU and some for MEM. You can always get a reading from directly behind the GPU and off the back of each individual memory module. Comes in handy when you have +1GB of memory and a drop of ~.05v from one side to the other.

I poked around on the back of the card...

the 2.3 is missing a couple of caps vice the 2.2 Read 1.35 on a couple and 1.25 on the other for GPU

Vmem one reads 12v though :s Only thing holding me back on that card is read points.. the ICs are the same.. less CAPS means just less Voltage regualtion I would think...

The fact that one cap reads a full tenth off though well I dunno

Vmods is new to me... imma get my feet wet on cards that are well documented first.. figure out the ICs and stuff as I go.. figure that is the best bet and maybe as I progress I can figure out future vmods...

Any help you can give is totally appreciated though :)


EDIT: and yes was only a couple thumbscrew twists to take the HS off and the 3 CAPS by the GPU are marked 2.5 volts... other says 04v same size

(ther are 5 small on the 2.2 second from top is missing on on hte big cans to the left the bottom is missing.. ) the two missing cans

big and little can for vmem is present will start a thread on it tomorrow.. if you are interested...

If you post some pics of the front/back of the card while the cooler is removed, it would be easier to see what you're talking about.

Will do man. I took the snaps already , just have not uploaded them. Thought I posted the link to the 2.2 earlier but maybe i had not... I do realize I was not specific as to what I was talking about to, I forgot to say I would add the info later ;) Did not realize you were still online :)

Gimmie a few minutes to finish my sammich and I will up load and post.

http://i167.photobucket.com/albums/u...th_vmod005.jpghttp://i167.photobucket.com/albums/u...th_vmod006.jpg
http://i167.photobucket.com/albums/u...th_vmod003.jpghttp://i167.photobucket.com/albums/u...th_vmod004.jpg


CAp hides it in first pic but its N7600B REV 2.3