Shutdown problem

[Paurin]

Hi, firstly I'd like to sorry for my broken English. I've got a problem with my computer. While playing or using 100% of my CPU, after few minutes, my computer suddenly shuts down. But it's not all, sometimes when applications use a lot of RAM (not CPU), I've got a BSOD or computer suddenly shuts down too.

I've done a tests like Prime95 ( computer shutdown at 765. test ), memtest and reinstalled drivers for motherboard ( not that I really thought it could help ).

I've got this computer for about 3 years. No changes since I've got this.

Any ideas what could it be and what should I do ?

My specs:
Windows XP Home Edition (Service Pack 3)
AMD Athlon 64, 3500+ (2.2 Ghz)
2GB RAM (DDR 1)
NVidia GeForce 7300 GT　(driver is 191.07)
DirectX 9.0c
Realtek HD Audio output
Motherboard: Gigabyte GA-K8N51GMF-9-RH

 

[jdjbuffalo]

You should include more details about what happened with your Prime95, Memtest and anything else you've done. However, it sounds like an issue with either your power supply or RAM.

With Memtest, have you tried running it for at least 12 hours? Did you get any errors? If so, then the easiest thing to do would be to replace the RAM. You might be able to get it working with adjustments in the BIOS but if it failed after 3 years of use it's probably just gone bad.

With the power supply, if you used a generic power supply or one that came with your case then I wouldn't be at all surprised if it's going out. I recommend replacing this sooner rather than later as when cheap power supplies go out they tend to take several other components with them.

 

[RadiclDreamer]

This sounds like one of a few things in order of occurance

1. Overheating CPU
2. Power Supply problem, check and report voltages
3. Memory

 

[Intexity]

definitely check the internal temps. that setup should handle most everything you throw at it (but the video card leave a few questions. if you use this for gaming then i could see how your system may be getting maxed out). possibly. but check you hardware first as posted above.

 

[RadiclDreamer]

Have you had a chance to gather the requested information? Or have you already solved the issue?

 

[Paurin]

Sorry that I didn't answer (Christmas).

@jdjbuffalo

"You should include more details about what happened with your Prime95."

So, while it's doing circa 765. test, computer suddenly shuts down. As I saw, It's been testing CPU.

Memtest

Memtest was OK, but I will check it once again.

and anything else you've done.

I was writing about reinstalled drivers, so I used Add or Remove Programs to uninstall nVidia, next I used DriverCleaner to delete rest of files and then I've installed nVidia Drivers from this page.

@RadiclDreamer

1. Overheating CPU

Motherboard 32 °C (90 °F) - And nothing changing while playing
CPU 40 °C (104 °F) - Up to 80°C while playing
GPU 46 °C (115 °F) - Up to 50°C max

2. Power Supply problem, check and report voltages

I don't know exactly what do you want to know, so I've made a PrtScr of Window in Everest.

3. Memory

It's OK. (I hope)

@Intexity
My video card was overheating and I had to buy a new cooler. Now it's almost OK, but sometimes while playing OpenGL games (like Frets On Fire), it gets really hot.

 

[RadiclDreamer]

Your voltages are off if thats a good reading. Do you or a friend have a power supply you can use to test with?

 

[RadiclDreamer]

What brand/model of power supply?

 

[Paurin]

What brand/model of power supply?

- Fever LC-8400BTX

Do you or a friend have a power supply you can use to test with?

Unfortunately no.

Your voltages are off

What do you mean by 'off' ?

 

[RadiclDreamer]

I mean by that screen shot your -12v is running at around 4 your -5 is running 3.9 etc

Typically you want a power supply that doesnt go outside of the + or - 10% nominal value. Meaning if its a 5v line, it shouldnt be more than .5 above or below that value.

I've never heard of that brand of power supply and when i google it, this thread is the top hit which tells me it cant be a solid brand.

Power supplies are a tricky business, just because something says 600watt doesnt mean it can actually deliver that, or give enough on the right rails, or sustain for any period of time. Always stick with a trusted name, you may pay a little more, but its well worth it

 

[Paurin]

Thanks for explaining. So my problems with computer could be caused by a power supply ? Could you recommend any of good brands ?