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Voltage issue?

Last response: in Components
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September 26, 2012 5:22:58 PM

I'm having an issue and hoping someone can help me figure out the source of the problem.

Recently I found that when gaming, my computer would shut down instantly. No crash/blue screen, not restart, no error....nothing, as if i just pulled the plug. Windows doesn't even realize it wasn't shut down properly on restart. I'm not sure when it started for sure. I hadn't played any games in a few months, then I updated my video drivers, and it began to happen. I have noticed no other issues whatsoever. The games function fine as well as everything else.

My first thought was the video drivers of course so I used a driver cleaner and reinstalled the one I had used previously. No change.

I then installed SpeedFan to check on temps. Here is a screenshot of it:



This is actually a test from AFTER I installed a new PSU. It appears to be just about the same as the test I ran with my older PSU. This test is why I bought a new one to begin with...which appears to have been a waste. The problem still persists (shut off after gaming for a couple minutes) even with the new PSU.

So as you can see, the voltages seem to be way off. Is this possible? Could there be an error in the testing? What other issue might I have if it's not the PSU? What other tests could I run? Should I return the new PSU now?

On another note, what are the Temp 1, 2, and 3 in SpeedFan? I'm not sure what they are referencing and don't know how a temp 3 of 125C is even possible. Especially since this is just after being shut down for a while.

thanks for any input!

Oh and my specs:

Win7
Radeon HD 5770
Phenom II X4 925
can't recall anything else.

More about : voltage issue

a b ) Power supply
September 26, 2012 7:00:08 PM

What is the old PSU and what is the new PSU?
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a b ) Power supply
September 26, 2012 7:52:34 PM

What case do you have?
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a b ) Power supply
September 26, 2012 7:55:42 PM

Are you using a amd on a asus board since my temp 3 read -128 on speedfan,in the configure part set the temp as low as 35 and check all the log box you could also check the box for the pwm under each settings then for fan settings check log box to all after i check all box for all voltage and fan speed leaving them at 100 max value do not check the automaticaly variated
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a b ) Power supply
September 26, 2012 8:27:59 PM

scout_03 said:
Are you using a amd on a asus board since my temp 3 read -128 on speedfan,in the configure part set the temp as low as 35 and check all the log box you could also check the box for the pwm under each settings then for fan settings check log box to all after i check all box for all voltage and fan speed leaving them at 100 max value do not check the automaticaly variated


You might want to be a little more clear. It isn't even clear to me what you want him to actually do.
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a b ) Power supply
September 26, 2012 8:32:58 PM

that the temp 3 does not report correctly on speedfan for asus board with amd cpu,the other part is the setting for speedfan
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a b ) Power supply
September 27, 2012 12:34:20 AM

If your PSU voltages were that far off, your computer definitely wouldn't boot. My guess is that the motherboard's system monitoring chip is not wired/programmed to enumerate SMBus parameters quite in the order system monitoring programs are expecting them and software ends up reporting bogus values.
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September 27, 2012 12:52:35 AM

how do those numbers relate to what's in the BIOS?
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September 27, 2012 12:55:44 AM

I was thinking the same thing but I'm not sure where else to look for my shutdown issue.

One thing I forgot to mention is that, sometimes, when I restart, it seems to shut down....as in I have no feed from the video out, and I believe it is shut down...but yet all of the fans are still running. I then have to do a hard reset or shutdown in order to actually restart the thing.

The only thing that seems to make any sense is that my mobo is screwed...but I want to be sure before I make another purchase. (and be sure that returning the new PSU is the right call....hmm...Can i even return to NewEgg for such a reason?)
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September 27, 2012 12:56:43 AM

My BIOS doesn't display any voltages for some reason.
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a b ) Power supply
September 27, 2012 1:04:28 AM

When you do something stressful to the PC, do the voltage numbers change to be more along the lines of what you would expect them to be?
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September 27, 2012 1:21:34 AM

I just started Skyrim up and let it run for a min or two and didn't see the voltages budge at all. Min and Max across each didn't move.
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a b ) Power supply
September 27, 2012 1:13:44 PM

Do all games cause a crash or just some?
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September 27, 2012 2:52:47 PM

Hmm...haven't tried anything else. I'll check on that and get back to you.
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September 27, 2012 10:06:39 PM

I tried another game and same thing happened. It was Diablo3 and I was only in the AH...not even playing really...and it shut down. After that it shut down twice more when I barely got windows booted.

I checked the SpeedFan logs and all the numbers are ok...or at least the same as they were up to the point of the shut down. Nothing notable at the time of the crash.

I'm going to experiment with shutting down some extraneous processes and see if that changes anything.

Any suspicions yet?
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a b ) Power supply
September 28, 2012 12:15:03 AM

When was the last time you reinstalled (and/or just installed) windows?

- edit - typo
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a b ) Power supply
September 28, 2012 12:25:12 AM

it seen in the cpuid monitor that your cpu fan is not report under fan pwm fannim0 and the 2 other report a 50 also your core clock show 800 but the real value should be 2800.1 mhz also all the core clock should report the same value as max and your voltages look strange check all your bios and cooling settings but there could be something with your motherboard ( i use the same case you should not have any issue with her for the cooling)
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September 28, 2012 3:31:29 AM

Your mention of the core clock gave me an idea. I looked in the bios and sure enough, AMD Cool n Quiet was turned on....no idea why I left that on as it always gave me fits...but after turning it off I played a game for awhile and ever since I haven't had a shut down. Only time will tell but so far so good. The voltages still display strangely but if it runs ok...

Now i just need to decide if I should return this psu...

thanks
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a b ) Power supply
September 28, 2012 12:55:41 PM

Are you OCing?

People that OC usually turn it off, but afaik most everyone that is not OCing just leaves Cool N Quiet on.
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a b ) Power supply
September 29, 2012 1:03:55 AM

if you return they could be restocking fee ,you could try to sell the old one by yourself and keep the new one
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September 29, 2012 3:12:25 AM

no, no overclocking. I've dabbled in the past but don't feel the need these days.

Turns out it may have been a false alarm....got home today and the pc was off. Not sure when it shut down but it did so on it's own and obviously nothing was really running while I wasn't here. Seems pretty haphazard...

Any other thoughts on things to try before I replace the mobo?

Oh and I really can't remember when I installed windows...maybe about 2 years ago? Honestly things run quite well...I haven't felt like I needed to reformat.
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a b ) Power supply
September 29, 2012 5:20:43 AM

I might try reinstalling before I sent anything in if it were me, but I would understand if you would be wary of that.
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September 29, 2012 11:27:48 PM

What makes you think that the OS is to blame?
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a b ) Power supply
September 30, 2012 2:01:02 PM

OS corruption has been known to cause a lot of crashes.

Still, the most likely things have already been tested. I am just looking at lesser possibilities at this moment.
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a b ) Power supply
October 1, 2012 12:36:21 AM

check if everything is up to date in your os and driver even the net framework from windows
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!