View Full Version : Anyone in Southern-California willing to help me vmod?
blackjackel
02-24-04, 06:13 PM
Yep. Ive done northbridge heatsink/southbridge heatsink and mosfet cooling mods...
Ive watercooled and built my own rigs...
tested, tweaked, and overclocked.
But voltmodding is where i draw my line....
I have NEVER saudered anything before, and i dont quite know how to sauder, and am very paranoid about voltmodding, which is why:
I am asking if anyone out there lives near my area (southern california, LA, (riverside to be specific) )
That knows hot to sauder stuff and thinks he/she can help me out with doing the voltmod.
would be a cool venture to say the least.
Just thought i'd throw that out there, and see if i get anything. If not, then oh well, was worth a try =P
Edit: Oh yea! forgot! I have a NF7-S that i'd like to Vdimm and Vdd, and maybe even volt my 9800pro
Dubbin1
02-24-04, 07:36 PM
I cant say that I know how to sauder but I can solder like a mofo. Really though don't even try to get the nerve to do it since you can solder.
Dissolved
02-25-04, 05:07 AM
i wouldntmind trying. i have all the stuff too.
im in north OC.
shoot me a PM.
I live 30 min. north of Bakersfield. I've vmodded a few nf7-s rev.2's and my 9700pro as well. It doesn't take more than 15 min., so if you are ever going to be in the area, just send me an e-mail.
blackjackel
03-02-04, 12:17 PM
Thanks to all those that offer. Unfortunately i am only a college student and i do not yet have a car, so it might take a while for me to get to where you guys are, or to get this done in general. Hell it might not even happen, but i sure hope it will.
I learned that i have to do a PSU mod in order to raise the ram voltage, not sure about this but will research.
Yes, that is true. The vdimm runs off the 3.3v rail and if your vdimm is closer than .15v to your 3.3v rail under load then you will get memory failures.
I have a ttgi520 so I was able to raise my 5v and 12v rails by turning the pot, but I had to mod my 3.3v rail and currently run it at 3.6v under load :)
blackjackel
03-02-04, 02:18 PM
meaning it will be safe to run the vdimm at 3.15, anything above 3.15 and i get memory failure?
So.... a really safe estimate would be 3.1.
I wonder what kinda fsb can i get with BH-5 ram, 3.1vdimm and 1.95 vdd.
More than likely 3.1 vdimm should be safe, but you can never really know without a multimeter. If you have one, loop test 5 on memtest86 from a bootable CD and read your vdimm and 3.3v under that load. That way you can know for sure how close you are to that 3.3v rail ceiling and if you are getting any obvious erros from memtest.
Some 3.3v rails overvolt a little on some psu's, and undervolt on others so you can never really know until you test under load. The other thing you are looking for under load is voltage stability. If either your vdimm or 3.3v rail is bouncing around under load, that will be a problem.
I can't tell you exactly what 3.1v will give you on bh-5, all I know is that it's certainly better than 2.9v. It seems that bh-5 doesn't really hit it's performance sweet spot until about 3.3v or so.
Don't be afraid of doing the 3.3v mod, it's not that hard and there are some good tutorials out there. All you need is a 100-150 ohm fixed resistor to splice into the vsence and a 10k pot to adjust the rail (at least it was 10K VR for my psu)
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