Computer randomly shuts down

Sephiroth_dude

Hi Guys
I turned on my computer at 12:30 and its shut its self off twice since then,any idea what the problem could be?any advice on what I should do?

Any help appreciated
Kevin

Tefral

Sephiroth_dude wrote: »

Hi Guys
I turned on my computer at 12:30 and its shut its self off twice since then,any idea what the problem could be?any advice on what I should do?

Any help appreciated
Kevin

Its it a Laptop? If it is it could be overheating...

This could happen also if its a desktop.

Have you ran the usual virus checks etc?

Sephiroth_dude

Its a desktop,I'm running a virus check now

bonzodog2

You might open the case and see if the CPU fan or the power supply fans are bunged up with fluff

8kvscdpglqnyr4

Sounds like it could be overheating.
Can you install this:
http://www.alcpu.com/CoreTemp/
Post the results here if you don't know how to interpret them.

dave1982

yeh sounds like over heating

Sephiroth_dude

what do ye think?

softdancomputer

Doesn't look too bad, check the system and application logs in event viewer for any info @ around the time when the PC switched off.

8kvscdpglqnyr4

The CPU is idle ... you'll need to do something that's CPU intensive and keep an eye on the temperatures of Core #0-3.
The temperatures will increase ... I've seen it in the past where the temperature will heat shoot up as soon as the CPU is under load. When the temperature is high for a prolonged period of time (1 min) the CPU has a protection circuit that shuts down the PC immediately to protect it from damage.

When you have load on the CPU, send on another screen shot.

Sephiroth_dude

I found this error In the applications log and they match with the time my pc shut down at:

"Log Name: Application
Source: Microsoft-Windows-WMI
Date: 3/29/2011 4:17:59 PM
Event ID: 10
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: kevin-PC
Description:
Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"&gt;
<System>
<Provider Name="Microsoft-Windows-WMI" Guid="{1edeee53-0afe-4609-b846-d8c0b2075b1f}" EventSourceName="WinMgmt" />
<EventID Qualifiers="49152">10</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2011-03-29T15:17:59.000Z" />
<EventRecordID>81715</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>Application</Channel>
<Computer>kevin-PC</Computer>
<Security />
</System>
<EventData>
<Data>//./root/CIMV2</Data>
<Data>SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99</Data>
<Data>0x80041003</Data>
</EventData>
</Event>"




and this one in the system log:




Log Name: System
Source: Microsoft-Windows-SharedAccess_NAT
Date: 3/29/2011 12:33:46 PM
Event ID: 31004
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: kevin-PC
Description:
The DNS proxy agent was unable to allocate 0 bytes of memory. This may indicate that the system is low on virtual memory, or that the memory manager has encountered an internal error.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"&gt;
<System>
<Provider Name="Microsoft-Windows-SharedAccess_NAT" Guid="{A6F32731-9A38-4159-A220-3D9B7FC5FE5D}" EventSourceName="ipnathlp" />
<EventID Qualifiers="0">31004</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2011-03-29T11:33:46.000Z" />
<EventRecordID>332348</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>System</Channel>
<Computer>kevin-PC</Computer>
<Security />
</System>
<EventData Name="IP_DNS_PROXY_LOG_ALLOCATION_FAILED">
<Data Name="param1">0</Data>
</EventData>
</Event>


Dunno if there any help tbh

Sephiroth_dude

Gerald Scrawny Bay wrote: »

The CPU is idle ... you'll need to do something that's CPU intensive and keep an eye on the temperatures of Core #0-3.
The temperatures will increase ... I've seen it in the past where the temperature will heat shoot up as soon as the CPU is under load. When the temperature is high for a prolonged period of time (1 min) the CPU has a protection circuit that shuts down the PC immediately to protect it from damage.

When you have load on the CPU, send on another screen shot.

Take another snapshot when I start it up again is it?I started it back up at 4 having been away from it for about 2hrs and I went to make tea and when I came back it was shut down again,never happened before.

dbentham

OP, does the computer shut down 'gracefully' in a matter of a few seconds (as if you pressed the power button in Windows) OR does it just 'cut-out' suddenly without warning?

If it's the first scenario, I'd definitely check for viruses / malware and to ensure that the OS is fully 'patched'.

If it's the second scenario, it sounds more like a hardware issue to be honest.

mp22

Core 0 looks a little hot on the low end reading, my Q8200 shows 45 deg at the low end

Sephiroth_dude

dbentham wrote: »

OP, does the computer shut down 'gracefully' in a matter of a few seconds (as if you pressed the power button in Windows) OR does it just 'cut-out' suddenly without warning?

If it's the first scenario, I'd definitely check for viruses / malware and to ensure that the OS is fully 'patched'.

If it's the second scenario, it sounds more like a hardware issue to be honest.

it cuts out without warning but It hasn't cut out since about 4:15 and I've turned it on twice since then.

Sephiroth_dude

A further problem has occured,I started it up went away for a few seconds and it was off when I came back,started it up a 2nd time and it booted up,then turned itself off,I then started it up a third time same thing happend, started it up a 4th time running grand

FSL

Sephiroth_dude wrote: »

A further problem has occured,I started it up went away for a few seconds and it was off when I came back,started it up a 2nd time and it booted up,then turned itself off,I then started it up a third time same thing happend, started it up a 4th time running grand

I had a similar problem with a machine where the Power Supply failed completely shortly after exhibiting the same symptoms as yours.

Check your power supply.

Sephiroth_dude

FSL wrote: »

I had a similar problem with a machine where the Power Supply failed completely shortly after exhibiting the same symptoms as yours.

Check your power supply.

I'm beginning to think the same thing,how would I go about checking it?

Sephiroth_dude

Wells its been happening for near 2months now and now sometimes It wont power up I have to keep pushing the power button until it does,power supply problem?

Pacifico

Sounds like the PSU alright....had a similar problem myself!

Sephiroth_dude

Pacifico wrote: »

Sounds like the PSU alright....had a similar problem myself!

ah crap

fionny

Ditto on the PSU issue, my PC started just turning off like you described... took me a while to diagnose it but it was deffo the PSU.

If its a desktop it should be no biggie to replace, if its a lappy then it might be more of a shop or manufacturer job.

Sephiroth_dude

fionny wrote: »

Ditto on the PSU issue, my PC started just turning off like you described... took me a while to diagnose it but it was deffo the PSU.

If its a desktop it should be no biggie to replace, if its a lappy then it might be more of a shop or manufacturer job.

Ya its a desktop.its an 800 watt one I think,any recommendations for a new one?

fionny

Depends whether you want a good one or a cheap one?

800w is hefty size what the specs of your computer?

Sephiroth_dude

fionny wrote: »

Depends whether you want a good one or a cheap one?

800w is hefty size what the specs of your computer?

gtx 260
4 gigs ram
q9330 quadcore @3.15ghz
vista 32bit

fionny

Power hungry enough then! Nice rig I suppose with that hardware you dont mind getting a decent PSU, maybe this one:

http://www.amazon.co.uk/Cooler-Master-Silent-Power-Supply/dp/B003RUBV76/ref=sr_1_2?s=computers&ie=UTF8&qid=1306073942&sr=1-2

Make sure you select to buy it from Amazon directly that way youll get their customer service and free postage.

Review here: http://www.techradar.com/reviews/pc-mac/pc-components/cases-cooling/power-supplies/coolermaster-silent-pro-gold-800w-717076/review

Edit: while your at it get a copy of windows 7 for yourself :P

Sephiroth_dude

fionny wrote: »

Power hungry enough then! Nice rig I suppose with that hardware you dont mind getting a decent PSU, maybe this one:

http://www.amazon.co.uk/Cooler-Master-Silent-Power-Supply/dp/B003RUBV76/ref=sr_1_2?s=computers&ie=UTF8&qid=1306073942&sr=1-2

Make sure you select to buy it from Amazon directly that way youll get their customer service and free postage.

Review here: http://www.techradar.com/reviews/pc-mac/pc-components/cases-cooling/power-supplies/coolermaster-silent-pro-gold-800w-717076/review

Edit: while your at it get a copy of windows 7 for yourself :P

I will do

Auvers

this one on adverts would do the job

FlowersByRay

could be over heating?

Sephiroth_dude

FlowersByRay wrote: »

could be over heating?

I downloaded a program to monitor the core temps I must look at it again,If it was overheating,how would I sort it?

fionny

I seriously seriously doubt its overheating with the symptoms you describe. If it was overheating it would first slow and fans would speed up etc... the erratic sudden power offs and sometimes refusal to turn on points strongly to PSU.

FlowersByRay

try a program called core temp, i found it when using google ages ago. It works queit well. Anything about 70 is a problem. Is the laptop hot to touch anywhere?

fionny

FlowersByRay wrote: »

try a program called core temp, i found it when using google ages ago. It works queit well. Anything about 70 is a problem. Is the laptop hot to touch anywhere?

70 for a GPU isnt that bad to be honest in a desktop. I have 2 in SLI and they regularly idle at 60c and under load go to 70 to 75 some times higher.

Sephiroth_dude

FlowersByRay wrote: »

try a program called core temp, i found it when using google ages ago. It works queit well. Anything about 70 is a problem. Is the laptop hot to touch anywhere?

Thats the program I downloaded and all 4 core temps were between 45-48, I must run it again and its a desktop that I have .