Is this a bad 12v drop?

[Blkout]

11.8v under load? I'm using an Antec TP430, at idle according to Asus Probe its 11.8v and under load its, 11.8v, it fluctuates up and down by .1v but never really changes other than that. Pretty much stays at 11.8v all the time. Is Probe wrong or is this a good or bad drop?

[Bios24]

As long as your stable, that seems fine to me. Antec's have been know to have low 12v rails. Mine reads 11.76-11.86 all the time in the rig below, and it's 100% stable.

[MrCooper]

11.8v under load? I'm using an Antec TP430, at idle according to Asus Probe its 11.8v and under load its, 11.8v, it fluctuates up and down by .1v but never really changes other than that. Pretty much stays at 11.8v all the time. Is Probe wrong or is this a good or bad drop?

Do you want to make that .20V drop dissappear? Follow this guide and you can manipulate the voltages as to how much you want your rails. :p
http://www.xtremesystems.org/forums/showthread.php?t=37574


MrCooper

[Blkout]

Thanks guys. Would having a true 12v actually help though?

[crimedog]

Do you want to make that .20V drop dissappear? Follow this guide and you can manipulate the voltages as to how much you want your rails. :p
http://www.xtremesystems.org/forums/showthread.php?t=37574


MrCooper

that will increase your rails but not prevent the droop. increasing your rail from 11.8 to 12.0 shouldn't improve anything.

[Snipe3D]

is there any long term life effects on equipment with low rails like that?

[MrCooper]

that will increase your rails but not prevent the droop. increasing your rail from 11.8 to 12.0 shouldn't improve anything.

If you read his first post carefully, you will see he's not talking about mb's droop problem but his rails sagging to 11.8V from 12V that's why i pointed him to that mod. :shrug:

For me, having rails that doesnt fluctuate is golden when it comes to clocking. :)

[electrorcamd]

Checking them with a multimeter is the only way to actually know how high or low your rails are. Especially if you are going to tweak them, I would recommend getting a digital one and checking your rails with that.

[Blkout]

Checking them with a multimeter is the only way to actually know how high or low your rails are. Especially if you are going to tweak them, I would recommend getting a digital one and checking your rails with that.


I got a meter and know how to use it, was just wondering how accurate Probe was also.

[crimedog]

Do you want to make that .20V drop dissappear? Follow this guide and you can manipulate the voltages as to how much you want your rails. :p
http://www.xtremesystems.org/forums/showthread.php?t=37574


MrCooper

[MrCooper]

So your telling me i dont know how to spell DROP. He said he has a DROP in his 12V rail. Not "DROOP". Do you get what MrCooper is trying to tell you here! :argue: I gave him a link to a very nice psu guide which is performed with the same unit he has as he can increase his rails above what is specified for unless it fluctuates to a value he doesnt like. :welcome: :shrug:

[stang8118]

Before doing anything please check your rails with a multimeter. Software monitors can be off by up to .5v from what i have seen.

[crimedog]

not questioning your spelling, just your choice of word
The act of falling; descent.

The last sentances you were replying to were:
...it fluctuates up and down by .1v but never really changes other than that. Pretty much stays at 11.8v all the time. Is Probe wrong or is this a good or bad drop?

sense modding your rails increases them, but the droop in rails seen under load will not dissapear, and that is more important that what the rail idles at or falls to under load.

.1v variation isn't too bad for a psu like that, if that's indeed the case. you can't trust your onboard sensors, you must use a multimeter.

[MrCooper]

not questioning your spelling, just your choice of word


The last sentances you were replying to were:


sense modding your rails increases them, but the droop in rails seen under load will not dissapear, and that is more important that what the rail idles at or falls to under load.

.1v variation isn't too bad for a psu like that, if that's indeed the case. you can't trust your onboard sensors, you must use a multimeter.

MrCooper doesnt think theres a "droop circuit" in the psu. That is only implemented to p4 mb circuit due to intel's bullshi"t" and also the dual rail design. The antecs anyways. Dont want to sound like @ss or a fanboy here but they fluctuate like a mofo in their own nature. So lets cut this crap and move on. Only way solve this trauma, either he get a Fortron :p or do a sense line mod. It's the only way or the highway. :D :beer:

[AlabamaCajun]

We have a lot of talk about multimeters to test the rails on several boards. Has anyone put a datascope on the 12Vr to see how much fluctuation(droop and drop) actually occurs over a time period. Some of these procs really tag the voltages. I have the RealPower 450 with a wattage meter running at about 1/3 load. Just running normal apps causes the needle on the meter to swing 50 to 60 watts. The dual 12V rails on the little beast hang in pretty good, but I'm sure there major current flow in surges. On a weak PSU this would be the reason for odd crashes and GPFs right in the middle of huge gaming battle.

[Karbon]

I also have a TP 430, been using it for 2 years or so. Usually the 12v drops to around 11.8, but lately it's been getting worse. On my new board I haven't been able to OC very high so I was looking at the voltages...dropped down to 11.44 while priming :X. I'm at stock until powerstream 520 comes this week

[harlam357]

Do you want to make that .20V drop dissappear? Follow this guide and you can manipulate the voltages as to how much you want your rails. :p
http://www.xtremesystems.org/forums/showthread.php?t=37574

Thank you MrCooper! :thup: I have the same TP430 psu that I just replaced with a new FSP AX500-A(which I am much happier with btw). But while the TP430 is chillin' in a box I think I'm going to try modding the 12v rail. This psu has the same symptom as our friend Blkout's does. I have not measued anything with a DMM but MBM has reported the 12v rail dropping to ~11.6v under load and it hovered ~11.8v while idle. You may have either just resurrected or given me the tools to kill my TP430... and if the result is the latter I in no way hold you responsible. Well... maybe just a little. :)

[MrCooper]

You may have either just resurrected or given me the tools to kill my TP430... and if the result is the latter I in no way hold you responsible. Well... maybe just a little. :)

hahaha, Now, now there :p The link is for everyone to enjoy. :) Just be careful always that's all what I can advise you. Also don't forget to fold while your at it. :santa: It will trully show the real voltage while your folding for Team32. :shrug: :p

[harlam357]

hahaha, Now, now there :p The link is for everyone to enjoy. :) Just be careful always that's all what I can advise you. Also don't forget to fold while your at it. :santa: It will trully show the real voltage while your folding for Team32. :shrug: :p

j/k... :) I couldn't help myself. I will be careful. I understand the risks involved- not only to my psu but myself as well.

What will folding show that Prime95 won't show? Is Folding@Home somehow a better stability test or a better stress tester than Prime95?

Speaking of Folding- no matter what your answer is to the previous question- tell me more about folding... I've been considering joining team 32.

[MrCooper]

j/k... :) I couldn't help myself. I will be careful. I understand the risks involved- not only to my psu but myself as well.

What will folding show that Prime95 won't show? Is Folding@Home somehow a better stability test or a better stress tester than Prime95?

Speaking of Folding- no matter what your answer is to the previous question- tell me more about folding... I've been considering joining team 32.

Here's all you need to know about f@h :p knock yourself out now :p
http://www.ocforums.com/showthread.php?t=108580

Reason I recommned this, is because your helping and doing stress testing at the same time. :)

[DipStickTony]

That voltage is fine, spec is to run within 3% of 12v.

Get worried if it drops below 11.7 (11.64 is 3% regulation)