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Quote:
Originally Posted by Hell-Fire
well, his isnt working, i would sugest doing it with the POS in the middel....to my knowledge, its dosnt matter wheather the groups on on leg 1 or 3, it will just make it backwards, as you know.... obviously...
But i did one a wile back like he did, ground in middel and i did not work, when i swaped them, it worked.....
If redoing the VR so that the hot wire is going to the middle leg and that makes it work, then most likely the original solder joint was "cold", or something else was causing a problem elsewhere and resoldering the connection fixed something else you didnt see.
A resistor is a resistor...whether it be a fixed value one or a variable one. Doesnt matter which end you use as they do not have a polarity until after the current begins to flow.
Heck...at this point may as well try it. Got nothing to lose Frad.
From what I can tell in your pics, you have the wire running to your VR soldered to the top of that resistor you added. Thats what I wanted to check out. When this mod doesnt work for people, about 75% of the time they have soldered that wire to the bottom of the resistor.
Not sure what else to say other than to redo the mod when you have the time. If that doesnt help, then I would guess that maybe there is a controller limiting the 3.3v rail to what it is now. A 3.3v mod is one of the most straight forward there is. If it isnt working then only a hand full of things can cause it to not funciton.
well, your right, a resistor is a resistor, dose the same thing no matte what way shape or form...
Your guss is as good as mine.... ? what kind of PSU is it?
Its a chieftec 360w.
Ya know one thing it could be is a defective/blown VR.
Frad, replace the VR with a new one and see what happens. Be sure it is set to max resistance between the 2 legs you plan on using. Go with a 1k-10k VR.
I hear ya man.
GL with it. As far as I can tell from your pics the mod is correct.
@Hell-Fire
First of all,that is a very good how-to you made there :thumbsup: ,you :rocker: man.
Q,
I only need the 3.3v rail to be raised to let say 3.3/3.4v,do i need to do the mod also on 5v rail and 12v rail,maybe for some reason i dont know,or is it ok that i only mod the 3.3v rail.
The psu i wont to use is a,Q-Tec 550w dual fan Gold(do you need a pic of it),specs are 3.3v=30A,5v=40A,12v=20A,the 3.3v rail(orange) is the onlyone with a vsens.
Is this a good idea to use the Q-Tec(peak watt is 285w,yes i know its low) or is it better to use a Chieftec 360w,becaus the Q-Tec psu's are not known for there good performance isn'it,but the are the only 2 spare psu a have so i want to use them you see,psu in my a64 rig is a ocz 520w and thats a cranking good psu i may say,i love it.
O yes and can i use a 20K vr instead of a 10K vr,you also say that you used a 25w solder iron,i only have a 15w solder iron is that ok or is it better to use a 25w one.
Sorry for the noob Q,but i have to learn it sometime isn'it;).
Depending on your needs, and money situation, use whatever best suites what you have to work with.
You can certainly mod just the 3.3v rail and be absolutely fine. In fact, I rarely push my 5v and 12v rails to more than 5-10% of spec. It just isnt beneficial a vast majority of the time.
You can use any soldering iron you want to bud. But I highly recommend nothing more than 25-30w for a beginning modder as its just to easy to ruin something with a hot iron.
Your 15w is perfect for this type of job bud. Also, you can certainly use a 20K VR, but be aware that the voltage will increase quickly as you adjust the VR because the resistance will decrease much quicker per turn.
Let us know if you have further questions and good luck bud.
what would you say a Max 3.3v raisl should be? Hoaw about a mAx, for a system that is everyday uses compuer, Gamming, modding, overcloking, interner/mail....
This is not my garage test system, so i dont want to kill it?
You should keep it at around +0.25-0.3v above your max Vdimm setting.
If you dont push the Vdimm above 3.1v, then teh spec voltage of 3.3v-3.4v will be fine.
Yea my TCCD dosnt like anythign higher than 3.1v so...yea...
Do i have any option besides DDR booster to get 3.0v to my RAM? Abviously i can jsut link it to my 3.3v line...and the board max is 2.85 (2.91v)
Hi all. My first post here :D
http://freeweb.siol.net/delonge/3,3Vsense%20mod.JPG
I've modded my Chieftec 460W Super Power PSU 3,3Vsense like on the pic. but I have a problem. Vrail before the mod was done was 3,43V (3,15V Vdimm on DFI LP UT nf3 250Gb with 10/15 bios), after mod was done Vrail is 3,33V. What I'm doing wrong? Is possible that VR wasn't soldered good enough on GND or resistor?
A little offtopic... Vdimm with that bios should be 0.1-1.15V lower like 3,3Vrail. Mine is 0,3V lower :eek: WTF is going on with my mobo & PSU? Plz can u help me...
Tnxxx
Main thing is that you should be using a 47ohm resistor not a 50k ohm resistor for the fixed resistor. Be sure the VR has good solder joints and that you have it set to max resistance before soldering it in place.
Hell-Fire- why dont u answer my PM's bro?
no answers from you for over 3 or 4 monthes... with no replies
you still owe me money, and that power supply was mine that u used for this too
Man, I can't seem to get this going.
I'm now trying to do the 3.3 line on an Enermax 431 ps for practice before I do my pc&p ps. The sense line that is coming out the atx is brown but in with an orange 3.3 line. Does this matter?
I'm using all the parts needed in the start of this thread. Set the vr to 10 with a dmm, grounded the vr on the outside leg, and tried the fixed resistor both ways, still no go.
What could I be doing wrong?
Edit: My 3.3 rail was bad to begin with. So I tried with another psu and it worked..
Can you ruin a psu with doing this mod incorrectly?
Um if you add resistence to the line doesnt the psu give more power?
Antec Neo POwer, Resistor or no?
3.323 without resistors. 3.43 with the fixed 47ohm resistor only on my test/practice psu.
Now this was working for a while there and after a while my PSU seems dead (Antec 480w) I tried tunring it on with the sense wires cut off, and i just read in another thread I may have killed the psu. I dont have a Multimeter to test it but the green/black shorting trick doesn't do any good. Is there anywhere in particular I want to start looking and pinpoint what exactly died in the psu so I could just solder a new part in :P. (Little poor atm)
Funny how he's in here everyother post until someone sez,I don't know the guy, but he seems like a good guy till u see a post like halomarine99's, oh and this one...Quote:
"Hell-Fire- why dont u answer my PM's bro?
no answers from you for over 3 or 4 monthes... with no replies
you still owe me money, and that power supply was mine that u used for this too"
http://www.xtremesystems.org/forums/...ad.php?t=57543
I'm gonna follow his guide myself to mod my True Blue 480w, at least he's good for something ;)
I find it strange that no one can find him :hm:
I hope things work out 4 u marine let me know if ya need help hehe
-=j0nnyr0773n=-
I finally got around to doing this mod on my Antec tp480. The 3.3 line goes up to 3.99v, and then OVP kicks in at 4.0v and shuts it down. I used a 10Ohm fixed and 10k 63-turn VR for the 3.3 line, and 47Ohm fixed 10k 63-turn VR's for 12.0 and 5.0 lines, although I don't really need to adjust those. Anyway, it seems to work fairly well right now. I haven't tested it with my system right now, because I need to do some more mods to get it working. Done with the power supply, though. Or I could mod it to a modular PSU, like all the rage these days. I don't know how long I can run the antec 3.3 at 3.99, but hopefully it won't explode. If that happens, I'll just have to get a PCP&C 510D, and do a mod to increase the adjustment from stock adjustment (btw, does anyone know where to find the guide for that???? PM me!).
Did you re-route the PSU fans when you did the mod? The problem with TP480's is faulty fan control system. It inevitably fails, causing your fans not to spin, and the PSU to overheat and die. Sometimes, spectacularly (i.e. - fire, etc). Sometimes just stops working. Either way, my fan control system was :banana::banana::banana::banana:ed up right away, so I re-wired the fans to a normal 12.0 line, and it's been fine ever since. Of course, I had to replace the fans, as the stock ones are noisy, and sound like jet engines if you run them at full speed.Quote:
Originally Posted by EmoAddict15
Edit: Why the hell is hell-fire banned? I thought he was an XIP and everything. WTF?!
I modded my Antec 380W a while back, only the 3.3v line. I can only adjust to 3.46V which is just under the 5% limit, beyond which the OVP cuts in and shuts it down. I wonder how you can get 3.99v which means your OVP is somewhere around 20%.
I suppose. But it shuts the PSU down at exactly 4.00v... so the max I can get is 3.99 (fluctuates between 3.97-3.99) but i think it's the varying pressure on the test pins more than anything else.Quote:
Originally Posted by e268
I can post pics if you don't beleive...
Don't get me wrong. I do beleive what you said. All I am questioning is how a psu can have 20%OVP protection, which is so much higher than the normal +/- 5%.
No idea.
http://www.xtremesystems.org/forums/...id=32742&stc=1
Edit: I calibrated the multimeter myself.
Edit2: I mean, against known voltage... So that I know it measures correctly.
Hey!Quote:
Originally Posted by sangboy
Sorry for answering that late, but I didnt read the forums for a while now.
I tried to mod my PSU that way - and it works! It really works... I still can't believe it. ;)
One weird thing remains: my multimeter shows 3.5V, but my BIOS shows only 3.35V and allows me to have 3.2V on the RAMs max - which is kinda confusing to me. :(
Anyone recognizes these issues?
Thanks alot, bye
Do anyone see photos on first post? Did their server broken down?