Power Supply Problem

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korn18m

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#1 korn18m
Member since 2004 • 1054 Posts

Well, I upgraded my gfx card about 2 months ago. Threw it in and didn't think anything of the power supply. My temps have been a little on the high end since then (sometimes would be 50-55c). Checked into it a little, but never really did any thing about it. So I'm sitting here, after an adware, virus, disk clean up, and defrag. Had SpeedFan up during it just to see afterwards. Well, I never really payed any attention to the voltage section at the bottom until now. The +12V there shows it as only getting 7.81V. I've checked forums and others with PSU problems usually report theirs at 10-11.5V and are told they need a new PSU. I haven't found any that report anything lower than 10V. Ofcourse now I will be getting a new PSU.

So, my question is will me having run my computer with that low of a voltage for 2 months now have any long term effects on my comptuer? Also, this could be a reason why my temps are high? I read somewhere that with a weak PSU could cause the computer to try and draw more current that it would normally try to draw, resulting in overheating, but that doesn't really make since to me. The computer still isn't getting as much power as it usually would, so with less power than normal wouldn't it actually be slightly cooler than it would be when it has a proper voltage? Just trying to see if I'm going to have to figure out a new cooling solution for when I pop the new PSU in, since the computer will have more power flowing through the components then.

BTW, I'm not a huge PC gamer, and don't have a $2,000 rig if anyone is wondering. Would like to avoid the usual "Post your specs" posts and such, as they aren't very good. :)

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dayaccus007

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#2 dayaccus007
Member since 2007 • 4349 Posts
What PSU do you have(producer and power) and what video card you currently have??
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korn18m

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#3 korn18m
Member since 2004 • 1054 Posts

Actually not sure of the producer... It came in the PC aready, an HP. It's 300W though, I know that. The video card is nVidia GeForce 7600 GT. Do you know if when I get a new PSU if my temps will be higher, lower, or unaffected? And if there is any possible permanent harm done from running the PC with low voltage for 2 months?

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HowardB

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#4 HowardB
Member since 2002 • 1689 Posts

Speedfan is notorious for inaccurate readings. I wouldn't put that much faith in anything it reports, especially a 12V rail reading of 7V on a computer that actually functions.

Speedfan reported the 12V rail on my computer at around 7V as well. My voltmeter and BIOS disagreed with Speedfan, though, both showing just over 12V.

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TrooperManaic

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#5 TrooperManaic
Member since 2004 • 3863 Posts

Speedfan is notorious for inaccurate readings. I wouldn't put that much faith in anything it reports, especially a 12V rail reading of 7V on a computer that actually functions.

Speedfan reported the 12V rail on my computer at around 7V as well. My voltmeter and BIOS disagreed with Speedfan, though, both showing just over 12V.

HowardB

Heres a link to good cheap PSU's that deliver, I dont reccomend the first one on the list though.

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=50002177%2040000058%201131414178&bop=And&SpeTabStoreType=0&Order=PRICE

Rosewill psu's can be compared to the $100 and over for half the price though if you have over $100 then go with thermaltake or corsair.

BTW to make you feel at ease I own one and it turned out very good for me, it handles anything I throw at it even extremely overclocked parts dont stand a chance of killing this psu.

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dayaccus007

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#6 dayaccus007
Member since 2007 • 4349 Posts
Rosevill sucks, get this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16817104935
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TrooperManaic

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#8 TrooperManaic
Member since 2004 • 3863 Posts
Rosevill sucks, get this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16817104935dayaccus007
that was a funny joke, I own 3 computers with diffrent rosewill psu's in them, each computer is highly overclocked and yes I owned 1 computer for more then a year so please tell me why they suck. Oh and they never failed.