Random computer shutdowns and whistling sound - Page 2

gruff

Sweden2276 Posts

September 16 2011 12:14 GMT

#21

I also noticed just now that your +12 V line is at 15 V (way too high). I read it as 12 at first. If they are even close to correct I'd definately replace the psu. If you don't have a multimeter to double check, try finding another software and see if it reads the same. A multimeter is probably neccesary if you want to be absolutely sure though. I think another software you can try is Everest, Speedfan or Motherboard Monitor if I recall correctly. Check on their home pages.

If you can get a hold of a multimeter there are plenty of guides that show you how to use it on your computer. Like this one:
http://pcsupport.about.com/od/toolsofthetrade/ht/power-supply-test-multimeter.htm
or this
http://www.techrepublic.com/article/power-supply-troubleshooting-with-a-multimeter/1056686
Amongst many others.

You should be reading close to 3.3, 5 and 12 V.

Wabbit

United States1028 Posts

September 16 2011 14:50 GMT

#22

HWMonitor's Voltage readings should not be trusted. This isn't the first of many times I've seen wacky 3.3V, 5V, and 12V readings (on this forum, myself included, just do a google search you'll see).

Similarly, TMPIN0 and TMPIN1 are grossly wrong or are attempting to read sensors that don't even exist (this is what happens on my pc).

We need some of the other Hardware experts around here to weigh in. It could be the PSU, but HWMonitor is NOT going to tell you that with any degree of certainty.

P.S. If it was really 15V on the 12V rail the PC probably wouldn't even start, much worse things would happen.

gruff

Sweden2276 Posts

September 16 2011 15:38 GMT

#23

Well yeah, if his computer was running fine I would probably say it's HWmonitor showing faulty values (my mobo shows 200 C in HW...) but it feels suspect as a failing psu would fit with his symptoms. Which is why I suggested checking with other software to see what they show and preferably checking with multimeter to be certain. Random restarts is a bitch since it can be numerous of other things that causes it.

Personally I would like to write off that possibility before going onto the the next thing.

jaj22

United Kingdom1376 Posts

September 16 2011 19:09 GMT

#24

Check the BIOS hardware monitor page. It won't tell you load voltages, but it will tell you whether HWMonitor is showing garbage readings. Most of those are definitely garbage though.

Even if the voltages are fine, it doesn't prove that the PSU isn't causing the problem, but there are a lot of software possibilities here anyway.

kuRdRone

2 Posts

September 16 2011 19:42 GMT

#25

PSU or GPU, Have you Stress tested your GPU yet ? it may take even longer stress test (i.e 40 minute match in a heavy map with full effects such as shattered temple, or a program called furmark)

JingleHell

United States11308 Posts

September 16 2011 19:44 GMT

#26

On September 17 2011 04:42 kuRdRone wrote:
PSU or GPU, Have you Stress tested your GPU yet ? it may take even longer stress test (i.e 40 minute match in a heavy map with full effects such as shattered temple, or a program called furmark)

SC2 is incapable of stressing anything with more power than an HTPC GPU.

kuRdRone

2 Posts

September 16 2011 19:47 GMT

#27

That's what the furmark is for, what i am refering to with the SC 2 is a broken memory on the GPU
(sorry for english skills- incapable to explain very well)

JingleHell

United States11308 Posts

September 16 2011 19:51 GMT

#28

If Furmark doesn't find it, SC2 won't either. And if SC2 is doing screwy stuff with the VRAM, it's most likely software, not hardware.

Anyway, it's happening at random, which doesn't usually imply GPU. That's usually patterned.

DNB

Finland995 Posts

September 18 2011 11:28 GMT

#29

Yep, I'm pretty sure it's not a GPU problem since it can shutdown even when idle.

I went to the BIOS to see if I could find the voltages and temperatures, but they weren't there. How would I know the actual temperatures and voltages in case coretemp/Hwmonitor or other programs show false values?

jaj22

United Kingdom1376 Posts

September 18 2011 16:41 GMT

#30

On September 18 2011 20:28 DNB wrote:
I went to the BIOS to see if I could find the voltages and temperatures, but they weren't there. How would I know the actual temperatures and voltages in case coretemp/Hwmonitor or other programs show false values?

BIOS display is supposed to be Power->HW Monitor Configuration for that board, although if there's no actual display there you could try installing Asus PC Probe II.

None of these are guaranteed to give correct values though. For voltages you can use a multimeter.

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