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i didn't mod yet the 5V, but for the moment i tried :
15ohms + 1K var on 3.3V i love this :D
10 ohms + 2k var. on 12V rail => variator going too hot and Vdimm unstable like hell
56 ohms + 10k var on 12V rail => seems better and 12V rail is stable , but Vdimm unstable upper than 3.2V :/
I had to decrease AGP voltage when i did up the 3.3V rail, now i 'm standing at 3.4V seems ok
Thx for all contribution ;)
One thing to be careful about when overvolting. Apparently Radeon cards have no thermal protection against overvolted rails, so they can get very hot and I've seen reports of failure due to this. Monitor card temps carefully!
rms
does this also work with the antec 550W? I would suppose it does...
I have a really weak 5v (it´s standing at 4.89) and 12v (currently at 11.67) so the 5v mod would be really apreciated guys.
Can you put some pics of the 3.3 mod that is already done?
Thanks in advance.
awesome mod DOods!! time to pick up some vr's my 3.3 is at 3.24 this could really help me out. thanks a bunch!
Now what would be potential downfall of having ground involved in sense line with resistance in between? Stability? Fluctuaction under different load?
I dont quite follow your diagram macci. Are you soldering the fixed res to the think line, then fixed to vr and other end of this line?...kinda like a "T- Section" ?
Thx
here some pics of the connections I made :
http://membres.lycos.fr/xigfrid1/for...W/mod_alim.jpg
and here the final result.
http://membres.lycos.fr/xigfrid1/for...W/mod-PSU2.JPG
Do you think this also works with an antec 550W?
Yes Golias...it will. I just did it to my TruePower550 and will also do it for the 5v and 12v rails since they all have the sense lines connected to the ATX connector.
I will post pics soon when I am done.
Right now I am holding steady at 3.4 for my 3.3 rail.
I recommend doing it around half way up the chord bundle as it makes for easier adjustment to the rails. Or you can do what I am doing and add the fixed resistor, then add a wire so that you can add the vr and glue it to the crossbar at the top of most cases...very easy to to get to and adjust.
thank you for your reply, i really have to do the mods to the 5v ans 12v rails. They are really weak on the bios reading.
My epox 8rda+ reads the 3.3v has being the vagp, therefore i can´t find out what my 3.3 rails stands at the moment.
So what is the best fixed resistance for the 12v mod?
And the VR should be ????
Best Regards
Just finished up my 5v and 12v rails. Its easy as pie on the Antec 550.
Getting 12.46 and 5.45 now.
use a 60 or so ohm fixed resistor, then connect a 10k 15 turn VR to that...at the top of the fixed resistor...as in Xigfrid's picture.
make sure the VR is turned all the way up to 10k ohms before soldering it to the fixed resistor. Then just turn the vr clockwise to lower the resistance and raise the voltage.
Perfect!
Ahhhhh shucks Golias. :explode:
Dont be like that...:toast:
i´m gonna try it, then i´ll post the results.
Good luck.
If you have any questions before you start the mod, reply here and I will monitor this thread to see if you need any pointers.
Especially since we use the same psu.
Gonna do it over weekend on my true 550. Now, what are the wattage req for those resistors? I don't think it would be too high but would like to make sure before I burn anything.
For easy adjusting, I used a 68ohm fixed and a 10k 15 turn per rail.
You can use a 20k VR alone if you like....just be very careful when you start adjusting as you dont have the a fixed resistor to add some resistance if ya go to high.
Can somebody post some pictures maybe, of how to do the mod? I never modded a psu before, but my lines are really low. Maybe someone can give a list of what I need to do the mod.
You need to state what psu you are using Chris. :hehe:
Oops :rolleyes: I have the truepower480
But I'm maybe going to sell this one and buy a truecontrol550, does somebody know how much you can adjust the rails with the front bay it has?
It's supposed to be adjustable to -5% and +5%
Not sure actually Chris.....do a search for the TControl550 here and see what ya come up with.
Also, if ya look at long threads in the Overclocking forum, you may see someone has it listed in the SIG....just PM them and ask what they are getting.
Modding hte TP480n should be pretty much like doint what I did with my 550.
Can ya send a pic of it,,,unless you are gonna grab the TC550, then dont bother obviously. :hehe:
I ordered the truecontrol, I could sell the 480 for a good price so this is a bit easier ;) I would have like to mod it though, but I'm not sure if I can do it, and I don't want to trash this psu :p:
Truecontrol sucks... its good PSU but adjustable rail right now is maxed at 12.1 (which I am okay with) but... 4.97v and 3.26v under MBM? gimme a break. And to top it off, the control uses 2 1k vars and 1 .5k var. With 0 ohm being the maximum setup. (so you can't modifiy this easily by just swapping them)Quote:
Originally posted by Chris85
I ordered the truecontrol, I could sell the 480 for a good price so this is a bit easier ;) I would have like to mod it though, but I'm not sure if I can do it, and I don't want to trash this psu :p:
Yeah I bought mine yesterday too and plan to return it as soon as I get my PC&P -_-;
heheh , some more works on this Antec TP 430 W :D
here my new recommandation to get better Rails' stabilisation :
U 'll need to cut a part of the 92 mm sucking fan to allow it to cold the heatsink that isn't in the normal airflow.
I'm sory i don't have nor a webcam , nor a camera for pictures, so i went as usual, with the hand, your imagination will help a lot ;)
http://membres.lycos.fr/xigfrid1/for...od_ventilo.JPG