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K7 Master, Voltage Mod

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UnaClocker

Registered
Joined
May 1, 2001
Location
Near Seattle, WA
Ok, call me greedy.. I did the voltage mod for this board found on AthlonOC. It's only getting me up to 2.1v (well, 2.2v, but under load it drops to 2.1v) no matter how low I drop the resistance. So I went here:
SC2422 Tech Doc's and tried to make heads or tails of the information and wiring diagrams in there. I know there are some people here that are very good with electronics.. Can anyone take a look at that, and tell me what I need to do to get a stable 2.3v or more? I've currently got 22k ohms running from pin 7 to ground.. I'm considering hooking up to pin 6 also, and seeing what happens.. ;> Thanks for the help.
 
Sounds like you need a better power supply.

You do realise that most power supplies are re-marked. A 300W power supply is not always a 300W power supply.
 
chuckled as I read the post by wild_andy_c and your reply, UnaClocker. I as well have a K7 Master, but I have the S version, with/ the built in SCSI and did encounter the same troubles as you did in increasing the core voltage very high. I did some research into it, and not being very good with electronics, went to an electrical engineer friend of mine, who took a look at the board, and schematics of it, and declared to me that it would be very very difficult, if not impossible, to increase the core voltage much past 2.1 for any duration, or any work load. The wiring just doesn't seem to support such with out grave and extreme modification, so I just gave up on it, and decided that 2.0 was more potential difference than I could ever possibly need, seeing as I am still quite new to this and am using cheap, non-dangerous air cooling on my Athlon AYHJA !!yea, I got one, B-) !!

Little help, I know, but if you take it down to a college in your area, someone working on an electrical engineering degree could probably help you out a bit more than these forums.

(real life ppl tend to be able to help you out more, and also tend to be able to screw you over more - if its worth it to get your board that performance, be careful, and don't let some freshman EE hopeful take a soldering gun to it.)
 
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