13v on a 12v rail?

[Kravatie1]

I recently ordered a Corsair CX 750m

 

And it is showing that i have 13v going through a 12v rail. All the other volts are higher as well

 

 

Is this normal or not?

[TheAmazingCookieFromSquare]

Yes

[Kravatie1]

Yes

 

I thought you was legit Linus then and i take it i shouldn't be worried?

[TheAmazingCookieFromSquare]

I thought you was legit Linus then and i take it i shouldn't be worried?

Lol I lost my square Oreo Picture that my profile pic used to be.

 

It's a CX series power supply.You can't really expect much then a average power supply.Take it

[salecar3]

uuuuuuuuhhhhhmmmmm

[Kravatie1]

Lol I lost my square Oreo Picture that my profile pic used to be.

 

It's a CX series power supply.You can't really expect much then a average power supply.Take it

 

thanks:)

 

And i was just checking cos i don't want another blow power supply

 

 

Not much to worry about. There's a good margin of error on +12 rails. The sensors can be off sometimes as well so its nothing to worry about.

 

And it is a couple of hours new

[TheAmazingCookieFromSquare]

thanks:)

 

And i was just checking cos i don't want another blow power supply

 

 

 

 

wot...

How many PSU have you blown up... 0-0

[scobie56]

Just think about it you have an extra volt your not paying for but you should not be worried about it

[Kravatie1]

wot...

How many PSU have you blown up... 0-0

 

2 but the first one i was fairly new into IT.

 

The second one, someone brought me a cheap PSU which i didn't know about and it blew up after 8 months, it had no working switch and fan so i decided i'd rather get a PSU this time

[TheAmazingCookieFromSquare]

2 but the first one i was fairly new into IT.

 

The second one, someone brought me a cheap PSU which i didn't know about and it blew up after 8 months, it had no working switch and fan so i decided i'd rather get a PSU this time

You mean blow up as in a explosion or like not working?

[Kravatie1]

You mean blow up as in a explosion or like not working?

 

Just the usual flash at the back and knocking power in the house, not like fire or anything

 

but the first was because some polystyrene got in the plug and i didn't know about it and it somehow caused it

[TheAmazingCookieFromSquare]

Just the usual flash at the back and knocking power in the house, not like fire or anything

Oh I thought you ment this kind-

[Kravatie1]

Oh I thought you ment this kind-

 

I don't think i would be trusted with PC's again if that happened

[79 Potatoes]

Lol I lost my square Oreo Picture that my profile pic used to be.

 

It's a CX series power supply.You can't really expect much then a average power supply.Take it

Please... the only time I've seen +13 V was in a unknown OEM PSU and it was lower than that. Also if that +12 V rail reported is real it's out of ATX tolerances...

[Kravatie1]

i've had a look in the BIOS and it says it's using 12.056v on the rail so HWmonitor is probably lying

Edited June 30, 2015 by Chris Greenwood

[W-L]

i've had a look in the BIOS and it says it's using 12.056v on the rail so HWmonitor is probably lying

Ok good cause 13V is not normal at all good PSU will only vary at most +/-0.250V on heavy loads on the 12V rail anything more than that and approaching the +/-0.500V range is consider really bad.

[Guest]

i've had a look in the BIOS and it says it's using 12.056v on the rail so HWmonitor is probably lying

The only way to get a true reading is with a multimeter.

[Aniallation]

Don't trust software voltage readings.

[ThomasD]

I'd agree that it would be best to verify those readings using a decent DMM.

 

But I'd also like to see what Corsair said after being informed of those readings.  Software reporting is not precise, but that is still pretty darn high. 

 

That said, the things that will be serviced by the 12 volt rail (fans, PCIe cards, voltage regulators) are all very power hungry, so number one, they can handle the overvoltage, and two, that voltage will probably sag a fair bit under heavy load (which may be why it is running high - to keep it from dropping too low (which is way worse) under heavy load, and is also the very reason that some power supplies have multiple 12 volt rails.)

 

What is the motherboard?

[Kravatie1]

I'd agree that it would be best to verify those readings using a decent DMM.

 

But I'd also like to see what Corsair said after being informed of those readings.  Software reporting is not precise, but that is still pretty darn high. 

 

That said, the things that will be serviced by the 12 volt rail (fans, PCIe cards, voltage regulators) are all very power hungry, so number one, they can handle the overvoltage, and two, that voltage will probably sag a fair bit under heavy load (which may be why it is running high - to keep it from dropping too low (which is way worse) under heavy load, and is also the very reason that some power supplies have multiple 12 volt rails.)

 

What is the motherboard?

 

MSI 970 gaming

 

But here is the rest of the specs

 

• FX8350
• 3 x 140mm fans
• R9 270x (Getting upgraded to a 970)
• 8gb of standard RAM
• 2 x SSD's
• 1 x HDD
• 750w corsair CXM

 

 

I checked MSI Command center for the voltages and seen as both BIOS and the software related to the BIOS show different numbers around 12v and plenty of people have had strange readings in HWmonitors in relation to the voltages, i'd rather believe my BIOS

 

 

 

Update

 

I did some tests on the 12v rail with a DMM

 

When it's powered on and left abit it was running 12.18V (think thats good)

 

When powered off it uses about 0.10V

Edited July 1, 2015 by Chris Greenwood

[79 Potatoes]

Wrong software readings happens, you're fine

[Kravatie1]

Wrong software readings happens, you're fine

 

Well it's still working ;D

[Corsair Joseph]

Update

 

I did some tests on the 12v rail with a DMM

 

When it's powered on and left abit it was running 12.18V (think thats good)

 

That's more like it. All 3 rails should operate within the ATX minimum specs, which is +/- 5% of the labeled voltage. 13v on the 12v rail is considered to be out of spec and could cause stability issues in your system, but then again, you were getting that reading from a Software (even BIOS) which are never reliable nor accurate to begin with. Like what's been said above, best way to check voltages on each rail is by using a digital multi-meter (DMM). 

[Kravatie1]

i'll just mark this a solved because my computer has been stable and everything, thanks guys