Yeah, it is... they should design their boards better if you ask me.
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Yeah, it is... they should design their boards better if you ask me.
shimmishim,
Maybe the 430w Antec's are able to sustain more volts bcos my 550w Antec can't go past 12.3, 5.3 on those rails. Any higher & my PSU won't power up.
Wonder what's wrong with mine?
yeah that's very strange!
i knwo i accidently turned my 5 and 3.3 up too high and the overvolt kicked it... good stuff...
maybe the overvolt is kickin' earlier than it should? dunno... but that really stinks...
I done this mod to my antec tru430 and it seems that my 3.3 line is still low, at least as far as any software says MBM5 says 2.88 and Sandra 2003 says the same ? I modded all the lines and the 5V reads as it should at 5.30, which is where i had it modded to. Also my 12V line reads at 12.20 which is where I put it. But the 3.3V still reads at 2.88. After the mod I read it with my multimeter right off the ATX header and it read 3.60. Is the software wrong or is my mod screwed ? I used the inline resistor with a VR for all the mods. I used a 10k VR with a 68 ohm inline for the 12V line. A 22 ohm with a 10 k VR for the 5V and a 10 ohm with a 1k VR for the 3.3. It reads right on the Header but not in anything else ? Any ideas ? Or am reading it form the right place ? Thanks to everyone for all the info in this thread and thanks in advance to anyone that has an idea as to why I am getting this :toast:
Mine reads 3.4 on the atx 20 pin header but mobo monitor & in the bios my max is 3.2v.
Believe what your MM says I reckon..
edit: best to read it from the line you modded if you get my drift.
Yay thats what i trust is the multimeter but do you think maybe the sensor is just reading it wrong ? I was reading it with the meter right off the atx plug. So it has 3.6 there but all my other lines reported the change just not the 3.3 ? I guess I'll mess around a bit more and see what I can find.
Deathangel,
What mobo are you using?
Not sure if that has anything to do with it but my IC7-G is only a bit off with the readings, say under .2v off me thinks.
I got a Epox 8RDA+ Rev. 1.1, I am gonna try to find a schematic and read it with my meter straight off the mobo if possible and see what it really is reading. I think maybe just the sensor is a pos and it doesnt like 3.6 lol hopefully anyway or maybe my psu is taking a dump not sure yet.
I hope you guys can help me on an issue that has been troubling me for some time
I have a chaintech Zenith mobo that has a vdimm as high as 3,2...
...The problem is that it cannot keep a vdimm higher than 2,8...
The first thing one would suggest is that there is something wrong with the motherboard...
However, I have come to the conclusion that it takes up too much juice of the 3.3 line.
I've seen one more user having the same trouble and he partially coped with it by modding the psu...so I'm willing to do the same...or something similar...
I have an Antec 480 TRuepower psu that I can mess with...
The other solution is to buy the 550 truecontrol psu that allows an overvoltage of the 3.3 line up to 3.45-3.49...
I've read other users' posts that had the same idea as me but where disappointed by the truecontrol...
But since I have no knowledge on electronics I would like to ask for your advice on what I should do to get the board to supply the requested voltage...
...have the psu 480 modded for me
or
Buy the 550 truecontrol?
All I want is to be able to use the 3.1-3.2 vdimm
Please any idea, advice, info would be very appreciated :toast:
As long as you have a multimeter, I would recommend you just do it yourself. :)Quote:
Originally posted by vgiozo
I hope you guys can help me on an issue that has been troubling me for some time
I have a chaintech Zenith mobo that has a vdimm as high as 3,2...
...The problem is that it cannot keep a vdimm higher than 2,8...
The first thing one would suggest is that there is something wrong with the motherboard...
However, I have come to the conclusion that it takes up too much juice of the 3.3 line.
I've seen one more user having the same trouble and he partially coped with it by modding the psu...so I'm willing to do the same...or something similar...
I have an Antec 480 TRuepower psu that I can mess with...
The other solution is to buy the 550 truecontrol psu that allows an overvoltage of the 3.3 line up to 3.45-3.49...
I've read other users' posts that had the same idea as me but where disappointed by the truecontrol...
But since I have no knowledge on electronics I would like to ask for your advice on what I should do to get the board to supply the requested voltage...
...have the psu 480 modded for me
or
Buy the 550 truecontrol?
All I want is to be able to use the 3.1-3.2 vdimm
Please any idea, advice, info would be very appreciated :toast:
Step by step guide:
1) Go to local electronics store and get a 30 or 60 ohm (or anywhere in between) fixed resistor and a 1k (1k = 1000) ohm variable resistor.
2) Come home, locate the 3.3v line (usually orange) and cut the sense line (the thinnest wire of the three) from the same socket in the ATX connector (top left)
3) Solder your 30 to 60ohm fixed resistor between the points of the sense line you cut.
4) Solder a wire from one of the sides of the fixed resistor to the front leg (the "front" has the circular adjuster) of the 1K variable resistor. Solder the middle leg
5) Power up by jumpstarting PSU and check your 3.3v line (using multimeter). Turn VR as necessary until you reach desired voltage.
If you have any questions, feel free to ask. As long as you have the proper equipment (multimeter, soldering iron, and those two resistors), it will be no problem.
:toast:
PS: If you don't have that stuff, or you just feel really antsy about doing it, I can do it for you for free (but you pay shipping ;)).
Use a digital multimeter and monitor the 3.3v rail under load and such to see if the PSU is faltering or the motherboard itself.
Thank you both for your replies, this voltage problem has been giving me headache...
I guess I should have done that first to clear out if the board or psu is at fault...Quote:
Use a digital multimeter and monitor the 3.3v rail under load and such to see if the PSU is faltering or the motherboard itself.
but I got a little lazy and just thought that it might be a combination of both...the psu not supplying enough volt for this power-hungry board and the board's average power circuit
Ok were do you live? :DQuote:
If you don't have that stuff, or you just feel really antsy about doing it, I can do it for you for free (but you pay shipping
Actually I can find people here to do it for me (but I wouldn't mind getting my hands dirty on a 400w Q-tec - it shall have an eroic death)
that's my best part of the guide, I wouldn't like to do the mod out on the streets :toast:Quote:
2) Come home, locate the 3.3v line (usually orange)
Right now I'm missing the soldering iron and the multimeter to get things started...
I've almost made up my mind to mod the psu, but first I would like to hear your opinion, from your experience, whether the 550 truecontrol will do the job...
I understand that for you modding can be fun and a learning experience, but for me that I'm not much into technology, however interesting it sounds - as has been my experience so far with computers - I just want to keep the modding solution as a last resort just in case something goes wrong
So judging from your experience, could the 550 truecontrol at 100% give me my precious vdimm options?
I'll have to measure 3.3 rail first to see what's up and give you some ground on which you can make an estimation of the specific situation, but of course I'd be very glad to hear (err...read) your opinion in the meantime...
so these are the proper values, correct?
12 volt = 10k vr 68ohm fixed
5 volt = 5k vr 30ohm fixed
3 volt = 1k vr 10ohm fixed
and all you have to do is cut the appropriate sense wires and solder the fixed resistor inline and then solder one leg of the vr to one of the legs of the fixed resistor (doesnt matter which one) and then solder the other leg to a black wire for ground. This will leave one leg of the vr unused, correct? does it matter which leg?
thx
I found using a 1k on the 3.3 and 5k on the 5v was overkill...
500 ohm and 2K for 3.3 and 5 respectively would probably work much better.... and 5k on the 12v.
stick with 1k/5k/10k for 3.3/5/12 though since nobody has tried 500 ohm/1k/5k yet.. could kill the PSU.
Also, use the same legs on each variable resistor so you dont have to turn each one in the opposite direction to increase the voltage. The middle pin is the one that should be used for the ground.
Put them on the outside of the PSU so all you have to do is pop off the side of your case and then you can turn them..
I put mine on the wrong side fo the PSU case when I was doing this though, lol :D
Thats exactlly how I do my psu mods as well STEvil.
Best plae for them is mounted on the psu housing IMHO.
alright im gonna try this mod today or tommorrow, depending on what time i get out of here (at my fathers work). It "should" be safe to get the lines to as follows, right:
12v @ 12.3
5v @ 5.3
3.3v @ 3.5
That should be good, right? How high can I go while being reasonably sure that this thing won't fry my system until the 3rd of 4th quarter of this year when prescott matures? I know nothing is guaranteed, but still....Whats the benefit of going higher on the 12v line, vcore stabilazation? I know the 3.3 is vdimm, the 5v line's benefit is increased Radeon voltage stability, but what's the 12v lines? Thanks.
If I'm right, your Antec won't power up if you take it too far.. Better to jumpstart it without it hooked up to any components to check your lines...Quote:
Originally posted by computerpro3
It "should" be safe to get the lines to as follows, right:
12v @ 12.3
5v @ 5.3
3.3v @ 3.5
That should be good, right?
My 550w TP won't power up if I try anything over 12.2v or 5.2v.. Auto shut-off feature me thinks...
As for my 3.3v line, I've got it up to 3.51v w/out the auto shut-off feature kicking in. Damn I hate that BS feature...
I wanted exactly the same adjustments as you... Pity the darn thing shuts off... Oh well, at least it didn't blow up like my Enermax 350w & Topower 520 (w/out mods...)
really, the antec won't power up with just .3 over the lines?!! Thats bs...And yea I am definetly going to jumpstart it first, just wanted to know if those voltages were good for everyday operation.
Thats odd, try disconnection the sence wire from the ATX connector.Quote:
Originally posted by Minnyboy
If I'm right, your Antec won't power up if you take it too far.. Better to jumpstart it without it hooked up to any components to check your lines...
My 550w TP won't power up if I try anything over 12.2v or 5.2v.. Auto shut-off feature me thinks...
As for my 3.3v line, I've got it up to 3.51v w/out the auto shut-off feature kicking in. Damn I hate that BS feature...
I wanted exactly the same adjustments as you... Pity the darn thing shuts off... Oh well, at least it didn't blow up like my Enermax 350w & Topower 520 (w/out mods...)
I wouldn't count on that, theres so much different ยงยงยงยง that goes on this PSU modding besiness. I like to go 3.3@3.5V, 5V@5.25, 12@12.25-12.75.Quote:
really, the antec won't power up with just .3 over the lines?!! Thats bs...And yea I am definetly going to jumpstart it first, just wanted to know if those voltages were good for everyday operation.
Most of the time it will offer atvatages of the stock ouputs, but it can't hurt (just kidding about the "it cant hurt" but if you carefull most of the time it will be all good.
How to do that? Cut the darn thing??? Don't really wanna cut any wires other than the volt mods... Would I have to remove my mods??? Just cut it near the ATX connector???Quote:
Originally posted by CSOFT
Thats odd, try disconnection the sence wire from the ATX connector.
I'm at a loss with your method, if I cut the sense wires for my 5v & 12v, then will my vio mods for them still work???
The overvoltage protection whatever kicks in really early for me....
My Enermax 430w is rock solid w/out any mods... 3.35v, 5.15v, 12.2v...
With the Antec, if I turn the VR 1mm after it hits 12.2v & try to jumpstart the thing, the damn thing won't start...
TIA
i did the 12v mod with a 68ohm fixed and a 10k 15turn trimpot and no matter how much i turn the pots, the voltage doesnt go lower and higher?!?! what gives?
Silly question but did you follow the guides properly?Quote:
Originally posted by computerpro3
i did the 12v mod with a 68ohm fixed and a 10k 15turn trimpot and no matter how much i turn the pots, the voltage doesnt go lower and higher?!?! what gives?
That's the only thing I can think of for your mod not working...
Did you ground it to a good place?
I had mine grounded under the PSU PCB on one of the ground wires.
sigh...yea and i also did it to the 5v and 3.3v lines. worked great for those. So i adjust the 5 to 5.2, the 3.3 to 3.5, go to the bathroom, and go to work on the 12. I turn the trimpot, and its still not changing. I keep turning. All the sudden, the psu shuts off. I'm like, wtf? I look at it more carefully, and it was the friggen 3.3v line. I set the resistance to 0 by accident, sending who knows how many volts through the 3.3v line. the thing will not turn back on now. I think i fried my psu. So much for overvolt protection :rolleyes: :( :eek: :mad: :confused:
quote from newegg's specs for the trupower 430
Over Voltage Protection: +5V trip point @+6.5V;+3.3V trip point @+4.1V;+12V trip point @+14.4V
does this mean its not fried because it should have shut off at 4.1v? Whats the max possible volts i put through this with a 10 ohm fixed resistor and the vr set to 0?
Okay, I think you farked it good:eek:Quote:
Originally posted by computerpro3
So much for overvolt protection
Over Voltage Protection: +5V trip point @+6.5V;+3.3V trip point @+4.1V;+12V trip point @+14.4V
Whats the max possible volts i put through this with a 10 ohm fixed resistor and the vr set to 0?
This is what I'd try to do in your situation...
1.) Ripp/unsolder the resistor & VR.
2.) If you've taken the mods off, temporarily reconnect the sense wire together & try & jumpstart your PSU & pray to the almighty eXtreme Sickness GOD that the thing fires up.
Can you explain it a bit more? I'm not sure whether you had the PC running & then adjusted(?) the VR on the fly. If you adjusted it while the PSU/PC was off & then tried to power up your rig, the overvolt protection BS would kick in & maybe save your PSU from becoming a messy/heavy/awkward paperweight....
If my resolution works (I'm praying for ya too) then you can use a multimeter to set your 1K Ohm VR to roughly 220-300 Ohms & re-do the mod. I suggest starting with 220 Ohms first though.
If all else fails...I heard that the Fortron 520w(?) PSU is excellent...No need to do any vio mods as I'm sure that they have some pots inside the PSU that you can adjust....
Wish I could get one here in AUS...The best one I can get (dearest as well) is the Enermax 550w PSU...
Anyways, I hope this works out well for you. I remember turning the 12v or 5v a bit too high& my PSU would not start up. That over-protection does help a bit...I hope it helps a lot in your case....
GOOD LUCK....
edit: Let me know how you go ok?