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3.20v on the +5v rail ?

Last response: in Components
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October 4, 2012 10:14:55 PM

Im looking at CPUID HW Monitor and its showing I only have 3.20v on the +5v rail is that normal? I have the corsair GS700 80+ Bronze

More about : 20v rail

a b ) Power supply
a b C Monitor
October 5, 2012 12:37:48 AM

whoah. thats pretty bad
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October 5, 2012 12:43:30 AM

is it the power supply ? or what could be that problem, I had my TR2 thermaltake 600w in it before and it didnt do that. Ill give you all the volts.

+3.3v is at 3.28
VIN2 2.18
VIN3 1.28
+5 3.20
VIN6 3.09
VSB3v 3.30
VBAT 3.22
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a b ) Power supply
a b C Monitor
October 5, 2012 12:44:43 AM

its most likely the power supply.
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October 5, 2012 12:49:31 AM

Yeah thats what im thinking, its a beast power supply, I just bought it 4 days ago its brand new. I just put my OC settings to default to see if thats what it was but that didnt change a thing. DAMNIT I guess Ill have to take it back, such a pain in the ass getting all the zip ties cut and everything. Did everything else seem ok ? and what should the 5v rail be at, obviously over 5v but whats normal ?
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a b ) Power supply
a b C Monitor
October 5, 2012 12:52:28 AM

my 5v rail is at 5.080v
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October 5, 2012 12:54:08 AM

do you know what the downside could be with having 3.20v on the 5v rail ?
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a b ) Power supply
a b C Monitor
October 5, 2012 12:57:11 AM

unstability but hardware nowadays dont really depend on the 5v. mostly on the 12v rail
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October 5, 2012 1:00:08 AM

Hmm im wondering if thats the reason im having a trouble with my OC on CPU, I have everything turned off, such as cool n quite C1E cpu spectrum, and it doesnt maintain the operating frequency, it goes from 3.8 down to 2.8 then the 3.2 and etc. I dont even have enough on my 3.3 rail. But other than that did all the other voltages look ok ?
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a b ) Power supply
a b C Monitor
October 5, 2012 1:01:49 AM

yeah they look ok.

actually ask corsair about the psu. they might give you a reason why it is like that or tell you if its faulty. looks faulty to me
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October 5, 2012 1:06:14 AM

Ive been looking on the internet trying to see if anyone else has had the same problem, dont see anything yet, I guess it could just be faulty. My case is so huge its hard to get out of the middle part of my desk but I guess Ill have to do it.
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a b ) Power supply
a b C Monitor
October 5, 2012 1:59:56 AM

abCasPeRR said:
Ive been looking on the internet trying to see if anyone else has had the same problem, dont see anything yet, I guess it could just be faulty. My case is so huge its hard to get out of the middle part of my desk but I guess Ill have to do it.


Those voltage readings don't come from the PSU, they come from a chip on the motherboard. Plug that PSU into another PC or use a circuit tester to get a better reading. If the voltages are outside the ATX specification the PC will usually automatically shut off, but this comes from different circuitry than the readings themselves.
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October 5, 2012 2:08:31 AM

Pinhedd said:
Those voltage readings don't come from the PSU, they come from a chip on the motherboard. Plug that PSU into another PC or use a circuit tester to get a better reading. If the voltages are outside the ATX specification the PC will usually automatically shut off, but this comes from different circuitry than the readings themselves.


I'm just going to take it back to get the 800w version of it, or I actually found a thermaltake SMART series PSU 850w MODULAR for the same price, should I get that instead ? Its 80+ bronze as well.
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a b ) Power supply
a b C Monitor
October 5, 2012 2:12:08 AM

abCasPeRR said:
I'm just going to take it back to get the 800w version of it, or I actually found a thermaltake SMART series PSU 850w MODULAR for the same price, should I get that instead ? Its 80+ bronze as well.


Thermaltake is kinda meh. If your Corsair PSU is working fine right now I'd stick with it. Just get a $20 PSU tester and see if it shows any abnormalities, those are always good to have on hand.
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October 5, 2012 2:15:22 AM

Pinhedd said:
Thermaltake is kinda meh. If your Corsair PSU is working fine right now I'd stick with it. Just get a $20 PSU tester and see if it shows any abnormalities, those are always good to have on hand.


Where can I get one at?
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a b ) Power supply
a b C Monitor
October 5, 2012 2:20:09 AM

abCasPeRR said:
Where can I get one at?


Most PC stores will have them floating around.

This is the one that I have. I've used it to find a few duds

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Here's a list on newegg

http://www.newegg.com/Product/ProductList.aspx?Submit=E...

Since you're having a voltage reading problem it's probably best that you get one with an actual voltage display and not simply a yay/nay LED
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October 5, 2012 5:57:38 AM

Pinhedd said:
Most PC stores will have them floating around.

This is the one that I have. I've used it to find a few duds

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Here's a list on newegg

http://www.newegg.com/Product/ProductList.aspx?Submit=E...

Since you're having a voltage reading problem it's probably best that you get one with an actual voltage display and not simply a yay/nay LED


Ok so I took it back and got the Corsair GS800w 80+bronze, still shows 3.20v. So its either a faulty sensor or maybe my motherboard ? Idk it might not be my motherboard. But I will have to get that voltage device and see what it really is. Thank you for your help.
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