So, I've noticed this constantly for the last, well, forever. But never thought much of it. But for some reason my -12V rail on my current PSU is, well, not -12V, it's sitting around -6V and has been for as long as I can remember;
[url=https://www.dropbox.com/s/dayiqd3naqctis9/2012-07-21_19-54-51.png]View image here[/url]
(this reading is the same in Speccy)
Should I really be concerned about this? My PC runs fine as far as I can tell, it doesn't crash, hang or stop working unexpectedly, and hasn't set fire yet. I don't particularly have the money to be replacing parts right now so this has concerned me a bit more than normal. Could this be caused by a lose connection?
Specs;
AMD Phenom II 4x 955 @ stock
ASUS M4A785TD-V EVO
4 GB DDR3
nVidia GTX 460 768MB
XFX 650W XXX Edition Single Rail Modular PSU (way out of warranty by now I bet)
[QUOTE=hexpunK;36872624]So, I've noticed this constantly for the last, well, forever. But never thought much of it. But for some reason my -12V rail on my current PSU is, well, not -12V, it's sitting around -6V and has been for as long as I can remember;
[url=https://www.dropbox.com/s/dayiqd3naqctis9/2012-07-21_19-54-51.png]View image here[/url]
(this reading is the same in Speccy)
Should I really be concerned about this? My PC runs fine as far as I can tell, it doesn't crash, hang or stop working unexpectedly, and hasn't set fire yet. I don't particularly have the money to be replacing parts right now so this has concerned me a bit more than normal. Could this be caused by a lose connection?
Specs;
AMD Phenom II 4x 955 @ stock
ASUS M4A785TD-V EVO
4 GB DDR3
nVidia GTX 460 768MB
XFX 650W XXX Edition Single Rail Modular PSU (way out of warranty by now I bet)[/QUOTE]
I honestly do not know all too much about PSUs but I wouldn't worry about it. As soon as it causes any issue at all though You should prolly get it checked or replaced.
Probably just a bad sensor, but even if it is that low the -12v line isn't really used.
Software readings of PSU voltages are usually really bad. If you're still unsure then take a multimiter to your PSU.
The only purpose of -12v is for the legacy PCI bus, and hardly any PCI cards ever used the voltage. There also used to be a -5v (which is still included on many shitty IED PSUs on the market) that some older ISA cards used.
Ahh well thanks guys. I don't have a multi-meter, but if -12V isnt vital, I think I can get along fine. From the looks of it, reviewers have the same readings as I do for this particular series of PSU. So it can't be a major concern.
[QUOTE=bohb;36882126]The only purpose of -12v is for the legacy PCI bus, and hardly any PCI cards ever used the voltage. There also used to be a -5v (which is still included on many shitty IED PSUs on the market) that some older ISA cards used.[/QUOTE]
If memory serves, it is also used for RS-232 interfaces.
[QUOTE=LoneWolf_Recon;36902395]If memory serves, it is also used for RS-232 interfaces.[/QUOTE]
No, RS-232 uses 5v signalling.
