PC randomly turns off without closing windows.

[Wordsworth]

I would second bej's post of electrostatic discharge being a possible culprit or a larger electrical problem. What is your computer's environment, does it sit on carpet? How many electrical components are connected on the same circuit? In any case, this sounds like an electrical problem not something occurring in Windows.

 

[bobcat19]

I would second bej's post of electrostatic discharge being a possible culprit or a larger electrical problem. What is your computer's environment, does it sit on carpet? How many electrical components are connected on the same circuit? In any case, this sounds like an electrical problem not something occurring in Windows.

I've got my computer sitting on a piece of wood on top of the carpet (as big as the base of my case). I've got two monitors and my PC on the same board. The only thing near my computer that I can think of is a curtain which could possible brush past it when I open or close it, but it's not that close either.

 

[1EYEDWILLIE]

Tried downloading that, however I get an error when I try to run it.

Download and install .Net framework
Download .NET Framework 4.5 from Official Microsoft Download Center

 

[Indianatone]

Here's a snapshot from speccy

40C is a lot higher than I like to see on an AMD CPU idling. Download CPUID - System & hardware benchmark, monitoring, reporting and check the core temps are lower. One thing that could be shutting off the computer is if your CPU is overheating it will throttle and then shut off and power down. You may need a new cooler heat sink and fan or new thermal paste on the CPU. Monitor the temps and report back.

 

[DavidE]

I do agree that high temps could cause a shutoff and maybe I missed this, but did the OP say these temps are at idle?

Even if at idle, what is the environment and setup?
- In a desert, on a 100F day, stock cooling, no AC, dusty HSF...

More important, what are the temps under load...?

Just saying...40C temp is not a problem that would cause a shutdown.
And I love to overclock my systems just to see what i can push them to.

 

[Indianatone]

I do agree that high temps could cause a shutoff and maybe I missed this, but did the OP say these temps are at idle?

Even if at idle, what is the environment and setup?
- In a desert, on a 100F day, stock cooling, no AC, dusty HSF...

More important, what are the temps under load...?

Just saying...40C temp is not a problem that would cause a shutdown.
And I love to overclock my systems just to see what i can push them to.

No he did not say they were at idle. I am just "putting it out there" as it seems to be a weird issue. Seen a lot of just shuts off stone dead due to cooling issues. 60C under load would do it with some AMD CPU's.

 

[bobcat19]

I do agree that high temps could cause a shutoff and maybe I missed this, but did the OP say these temps are at idle?

Even if at idle, what is the environment and setup?
- In a desert, on a 100F day, stock cooling, no AC, dusty HSF...

More important, what are the temps under load...?

Just saying...40C temp is not a problem that would cause a shutdown.
And I love to overclock my systems just to see what i can push them to.

No he did not say they were at idle. I am just "putting it out there" as it seems to be a weird issue. Seen a lot of just shuts off stone dead due to cooling issues. 60C under load would do it with some AMD CPU's.

Hey guys, idle temp is around 35 or 36-ish. Here's a snapshot from Everest, maybe this will help?

It's no more than 25 degrees in the room at the moment, quite humid though.

 

[neo101]

Run "Auslogics" registry cleaner.(restart pc)
Just trust it - it makes an auto-back-up anyway.

Have you tried pulling one stick of memory(test) at a time to check for ram faults?

Is your pc protected by an anti-surge/brown-out power strip? (Could be a fridge/freezer or a washing machine causing surge when they kick in knocking out pc.)

I've even read reports of dodgy electric flourescent light bulbs which give off wavelengths that switch off/on tellies and 'putas!

 

[Indianatone]

I do agree that high temps could cause a shutoff and maybe I missed this, but did the OP say these temps are at idle?

Even if at idle, what is the environment and setup?
- In a desert, on a 100F day, stock cooling, no AC, dusty HSF...

More important, what are the temps under load...?

Just saying...40C temp is not a problem that would cause a shutdown.
And I love to overclock my systems just to see what i can push them to.

No he did not say they were at idle. I am just "putting it out there" as it seems to be a weird issue. Seen a lot of just shuts off stone dead due to cooling issues. 60C under load would do it with some AMD CPU's.

Hey guys, idle temp is around 35 or 36-ish. Here's a snapshot from Everest, maybe this will help?

It's no more than 25 degrees in the room at the moment, quite humid though.

What about under load, gaming or running Prime 95? Prime95 - CNET Download.com
This will show up any cooling issues.

 

[bobcat19]

Run "Auslogics" registry cleaner.(restart pc)
Just trust it - it makes an auto-back-up anyway.

Have you tried pulling one stick of memory(test) at a time to check for ram faults?

Is your pc protected by an anti-surge/brown-out power strip? (Could be a fridge/freezer or a washing machine causing surge when they kick in knocking out pc.)

I've even read reports of dodgy electric flourescent light bulbs which give off wavelengths that switch off/on tellies and 'putas!

I'll run Auslogics tomorrow when I get a chance. No it's not protected by anything like that, but now that you mention it I probably should invest in something...

Could you please eloborate on the testing of memory? Or maybe point me in the direction of the information I want? Cheers

No he did not say they were at idle. I am just "putting it out there" as it seems to be a weird issue. Seen a lot of just shuts off stone dead due to cooling issues. 60C under load would do it with some AMD CPU's.

Hey guys, idle temp is around 35 or 36-ish. Here's a snapshot from Everest, maybe this will help?

It's no more than 25 degrees in the room at the moment, quite humid though.

What about under load, gaming or running Prime 95? Prime95 - CNET Download.com
This will show up any cooling issues.

I don't ever play any resource hungry games but I'll run Prime 95 tomorrow and let you know what happens, thanks for the help.

 

[lehnerus2000]

Have you checked that all of your power connections, expansion cards, graphics card and RAM are properly seated in their respective connectors?

If you have spare power connection cables available, try swapping them (one at a time) with the ones that you are currently using.
I've had dodgy cables from my PSU cause problems in the past.

Remember to turn the power off, BEFORE messing around with the connections and other parts.

 

[HammerHead]

Observation

I just noticed that the screen clips from Everest listed your bios as "0701". When in fact Asus says the current bios is 2701.

ASUS - Motherboards- ASUS M3A78-EM

Just something to ponder.

 

[bobcat19]

Have you checked that all of your power connections, expansion cards, graphics card and RAM are properly seated in their respective connectors?

If you have spare power connection cables available, try swapping them (one at a time) with the ones that you are currently using.
I've had dodgy cables from my PSU cause problems in the past.

Remember to turn the power off, BEFORE messing around with the connections and other parts.

I replaced the PSU about a week ago, it was a no name 370w that I had in there, and I replaced it with a 650w PSU, and it's still the same problem. I will check all my other components though. Thanks

I just noticed that the screen clips from Everest listed your bios as "0701". When in fact Asus says the current bios is 2701.

ASUS - Motherboards- ASUS M3A78-EM

Just something to ponder.

Ok, thanks, I'll look into that. I've never updated BIOS before, so I'm sure I'll learn something there, thanks

 

[bobcat19]

What about under load, gaming or running Prime 95? Prime95 - CNET Download.com
This will show up any cooling issues.

Here's a screenshot of my temps while running Prime95 after 10 minutes, they stayed at this until I turned it off.

 

[gregrocker]

Please post back a screenshot of your maximized Disk Management drive map and listings:

1. Type Disk Management in Start rb: Search box.
2. Open Disk Mgmt. window and maximize it.
3. Type Snipping Tool in Start Search box.
4. Open Snipping Tool, choose Rectangular Snip, click New, draw a box around full drive map and all listings.
5, Save Snip, attach using paper clip in Reply Box.

Tell us what is on each partition.

Make sure you have an adequate PSU based on calculations: eXtreme Power Supply Calculator

 

[bobcat19]

Please post back a screenshot of your maximized Disk Management drive map and listings:

1. Type Disk Management in Start rb: Search box.
2. Open Disk Mgmt. window and maximize it.
3. Type Snipping Tool in Start Search box.
4. Open Snipping Tool, choose Rectangular Snip, click New, draw a box around full drive map and all listings.
5, Save Snip, attach using paper clip in Reply Box.

Tell us what is on each partition.

Make sure you have an adequate PSU based on calculations: eXtreme Power Supply Calculator

I'm not entirely sure why there's 4gb and 9 mb unallocated on disk 1, but it's been that way since I've had it (I got it off a friend of mine ages back, it's never bothered me)

Obviously disk 0 is operating system. the other 2 are just stuff (movies, music, pictures and one or two games)

based on that site I need a 372watt power supply. I had a 370watt, now I have a 650w...

 

[gregrocker]

Ask back if you have any questions before updating the BIOS since it's a critical operation which you must get right, without power loss.

The temps need to be addressed. Have you cleaned all the dust out of your PC, including the heatsink?



If you need to pull off the heatsink to do this thoroughly then you'll also need to repaste your CPU with thermal paste. This should be done every year or two anyway since the paste dries out. To learn how to do it google for videos like this to watch enough of them you understand it fully:



Remember not to do this on carpet, and guard against static charge to mobo by constantly touching the case before reaching inside, avoid touching electronics as much as possible and do the cleaning and paste operations away from mobo.

 

[bobcat19]

Ask back if you have any questions before updating the BIOS since it's a critical operation which you must get right, without power loss.

The temps need to be addressed. Have you cleaned all the dust out of your PC, including the heatsink?



If you need to pull off the heatsink to do this thoroughly then you'll also need to repaste your CPU with thermal paste. This should be done every year or two anyway since the paste dries out. To learn how to do it google for videos like this to watch enough of them you understand it fully:



Remember not to do this on carpet, and guard against static charge to mobo by constantly touching the case before reaching inside, avoid touching electronics as much as possible and do the cleaning and paste operations away from mobo.

Ok, thanks for the help, I'll get onto this tonight.

 

[gregrocker]

Ask back if you're unsure because these operations can be unforgiving.

 

[Indianatone]

What about under load, gaming or running Prime 95? Prime95 - CNET Download.com
This will show up any cooling issues.

Here's a screenshot of my temps while running Prime95 after 10 minutes, they stayed at this until I turned it off.

The issues of shutting down are IMHO being caused by your cooling is inadequate. Either replace the fan and heat sink or at least replace the heat sink compound. The maximum core temperatures for that CPU are :[FONT=Helvetica, Geneva, Arial][FONT=Helvetica, Geneva, Arial]Product Specification: Processor AMD Athlon™ 64 X2 Dual-Core Model 6000+ Mfg P/N ADX6000CZBOX / ADA6000CZBOX Operating Mode 32/64 Stepping F3 Frequency 3000Mhz HT Speed 2000 Voltage 1.35-1.40V Max Temp 55-63°C Thermal Power 125W L1 Cache 128KB x2 L2 Cache 1MB x2 CMOS Technology 90nm SOI Socket Socket AM2 Warranty 3 Year Manufacturer[/FONT]

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