PSU 12volt line over volting? Tags: Power Supplies Graphics Cards Motherboards Components Product Last response: July 9, 2009 8:54 PM in Components Share jbaldachino July 6, 2009 5:26:29 PM I tried to search for this but was having trouble coming up with any good search terms, so my apologies if this has been answered elsewhere. My motherboard is reading my PSU 12volt line at 12.5 volts. I was having some difficulty with my graphics card (which is now in RMA) and one of the problems the EVGA techs suggested was that my 12v was running way too high at 12.5 volts. I've done some google searches and can't really find any information on this. I wouldn't trust any body at the PSU company anyway. Is 12.5volts too high? I know motherboard readings are not the most accurate, but I'm consistently reading between 12.48 - 12.52 volts. My PSU is here: OCZ ModXStream Pro 700 Watts http://www.newegg.com/Product/Product.aspx?Item=N82E16817341018 Should I be worried? More about : psu 12volt line volting clarkjd a b ) Power supply a b U Graphics card a b V Motherboard July 6, 2009 5:57:06 PM The ATX spec states that the voltage should be 12 volts plus or minus 5%. That means that anything between 11.4 and 12.6 volts meet the spec. While 12.5 is a little high, it is within the specification. theAnimal a b ) Power supply July 6, 2009 6:35:46 PM Measure with a DMM if you want to be sure. Related resources HELP! PSU's 12Volt rail dips too much! Will this affect my GPU Overclocking? - Forum PSU for GTX 660 SC Signature 2 (24A on +12Volt rail) - Forum PSU over volting / causing graphic issues? - Forum Will Over Volting My CPU Damage It - Forum Stupid question about 12volt rails. - Forum Can't find your answer ? Ask ! Get the answer jsc a c 144 ) Power supply a b U Graphics card a c 156 V Motherboard July 7, 2009 3:40:00 PM What kind of problems were you having with your video card. jbaldachino July 7, 2009 8:07:57 PM Initially none. After two days, major instability (no changes) and constant bluescreens with failure to reset device drivers or something along those lines. After such a dump, could not log into Vista 64 (could get to the user-selection screen, no further). Could boot fine into safe mode or with the card removed and using the on-board. By the end of the day, with the card installed, I was artifacting immediately on boot. jbaldachino July 9, 2009 2:33:49 PM BTW, I tested the 12volt lines with a digital meter today. I'm reading 12.4 volts at idle. The EVGA guy really seemed to think 12.4 was a huge problem, but I cannot find anything elsewhere claiming such. Any thoughts? theAnimal a b ) Power supply July 9, 2009 7:57:00 PM 12.4V is well within spec. (11.4V to 12.6V) jsc a c 144 ) Power supply a b U Graphics card a c 156 V Motherboard July 9, 2009 8:38:14 PM I doubt if the PSU is your problem. jbaldachino July 9, 2009 8:54:09 PM Thanks a lot guys. Can't find your answer ? Ask ! Publish Related resources SolvedHow can I tell which 12volt rail is being used? Forum Can I mix 12Volt rials on 2x SLI ? Forum SolvedOver Volting a CPU Forum 10.30v on +12volt rail Forum Can I use a 4pin 12volt in an 8pin slot? Forum Voltage on the 12volt rail Forum 12volt verses no 12volt plug Forum Can cpu or a8v mb fry if 4-pin 12-volt power not connected? Forum 12-volt card problems part II Forum ATX 20-pin connector and the 4-pin 12-volt Forum Why your 12-volt video card won't run. Forum How can i avoid the MSI 660ti from over volting? Forum Over volting gtx 590 Forum N560GTX-M2D1GD5 over-volting possibility? Forum SolvedIs 4.2ghz safe at 1.2volts with auto voltage from bios Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !