View Full Version : pc shuts down without warning
jckw
9th February, 2009, 07:35 PM
can anybody give me help my amd pc shuts down after about 20 mins of use do u think its power supply or over heating no virusis ive checked
Bulld0g
9th February, 2009, 07:45 PM
I had this problem a couple of years ago. Turned out to be a faulty stick of ram. If you have more than 1 stick take all out bar 1 and try that, then then swap it around.
It drove me scatty for weeks taking different components out etc. Tried different PSU's Graphic cards etc and it was the ram.
I'd start with that first m8 it's probably the quickest and easiest to eliminate.
cunny
9th February, 2009, 07:49 PM
You say after 20 mins, after that can you reboot it straight after, if yes doubt its over heating.
Dont suppose you get a BSOD (blue screen of death, a blue flash before it happens).
Does the event log show anything?
jckw
9th February, 2009, 08:01 PM
You say after 20 mins, after that can you reboot it straight after, if yes doubt its over heating.
Dont suppose you get a BSOD (blue screen of death, a blue flash before it happens).
Does the event log show anything?sorry keeps goin of no no blue screen nothing on event log just shuts down completely have to power up then it only stays on for less thats y i think overheating
cunny
9th February, 2009, 08:05 PM
power it up and go into the bios.
Leave for 20/30 mins see if its shutting off then.
Also check where the cpu temp and the shut off threshold are set to. This should give you a good idea if its overheating.
You could also pull the side off the case so when it shuts down feel the heat sink and see how 'hot' it is.
jckw
9th February, 2009, 08:09 PM
power it up and go into the bios.
Leave for 20/30 mins see if its shutting off then.
Also check where the cpu temp and the shut off threshold are set to. This should give you a good idea if its overheating.
You could also pull the side off the case so when it shuts down feel the heat sink and see how 'hot' it is.
cheers m8 will do
dj flame
9th February, 2009, 08:16 PM
sounds like overheating and the mobo is cutting the power.
open the side of the case and get rid of any dust you can see. switch it on with the side off and make sure the cpu fan kicks in if it does,great,shouldn't really over heat the cpu.
next remove 1 stick of ram and re start,if it cuts out then try it with just the other stick in.
your basically going to have to remove each bit of hardware and test with a known working one.
eventually you'll either eliminate a hardware fault,then it must be software related.
Start up the p.c and go in to Bios settings, (normally press f8) when booting.
Make sure that the cpu isn't overclocked as this can also cause a cut out.
Let me know how you get on.
Good Luck
Dj Flame
cunny
9th February, 2009, 09:12 PM
Thats a good point flame, check for dust for definate.
jckw
10th February, 2009, 04:52 PM
Thats a good point flame, check for dust for definate.hi lads cpu temp 98c /210 and rising mb temp 28c 82f and steady is cpu overheating sorry it keeps goin of would you replace thermal heat sync on cpu
thered
10th February, 2009, 05:16 PM
how far have you got m8 i have just took mine to bits and cleaned all fans and put back together also took fan of processor and applied thermal paste and re-seated
i was having problem with computer shutting down all ok now though
dj flame
10th February, 2009, 05:19 PM
no,don't bother mate, get an artic pro,and some new thermal paste.
You can pick the pro up for around a tenner and it's the best
cooler on the market (for the coin).
This baby will keep any cpu cooler than a polar bears arse
:wink::party :
bazzw6
10th February, 2009, 05:27 PM
first thing what processor is it pentium's turn off when they overheat and amd's freeze
caveman_nige
10th February, 2009, 05:45 PM
"Start up the p.c and go in to Bios settings, (normally press f8) when booting."
BTW Pressing F8 will take you to windows safe mode, not the bios.. bios keys are different depending on the make of the machine/bios etc
e.g.
Acer: - Ctrl+Alt+Esc
ALR PC: (F2) or Ctrl+Alt+Esc
AMI BIOS: (Del), (F1) or (F2)
AST, Advantage, Award, Tandon: - Ctrl+Alt+Esc
Award BIOS: (Del) or Ctrl+Alt+Esc
Compaq: (F10) (do this when the cursor is in the upper right corner of the screen blinking)
Dell: - F1 or Del.
Dell: - Some require pressing reset twice
Dell: - Ctrl + Alt + Enter
DTK BIOS: (Esc)
Gateway 2000: - F1
Hewlett Packard: - F1
IBM:
Older Models - In order to get into the configuration of the IBM setup screen (CMOS) screen you need to hold down both mouse buttons during boot up.
Aptiva - Press F1
IBM PS/2: Ctrl+Alt+Ins after Ctrl+Alt+Del
IBM PS/2 with reference partition: - Press Ins during boot
Some PS/2s, such as 75 and 90: - Ctrl Alt ?
Some PS/2s when pointer at top right of screen: - Ctrl + Ins
NEC: - F2
Packard Bell: - F1 or F2
Phoenix BIOS: (F1), (F2), or Ctrl+Alt+Esc
Phoenix BIOS: - Ctrl+Alt+S
Phoenix BIOS: - Ctrl+S
Phoenix BIOS: - Ctrl+Alt+Ins
Sharp Laptop 9020: - F2
Sony: (F3) while you are starting the PC, then (F2) or (F1)
Tandon computers: - Hold down the key after turning on power
Tandon: - Ctrl+Shift+Esc
Toshiba Laptops: - Toshiba Utility
Toshiba: - Press Esc during boot
Toshiba, Phoenix, late model PS/1 Value Point and 330s: - Press F1 during boot
Olivetti PC Pro: - Shift+Ctrl+Alt + Num Pad Del
Miscellaneous PC’s: - Ctrl + Esc or Ctrl and Alt and +
Zenith: - Ctrl+Alt+Ins
jckw
10th February, 2009, 08:25 PM
"Start up the p.c and go in to Bios settings, (normally press f8) when booting."
BTW Pressing F8 will take you to windows safe mode, not the bios.. bios keys are different depending on the make of the machine/bios etc
e.g.
Acer: - Ctrl+Alt+Esc
ALR PC: (F2) or Ctrl+Alt+Esc
AMI BIOS: (Del), (F1) or (F2)
AST, Advantage, Award, Tandon: - Ctrl+Alt+Esc
Award BIOS: (Del) or Ctrl+Alt+Esc
Compaq: (F10) (do this when the cursor is in the upper right corner of the screen blinking)
Dell: - F1 or Del.
Dell: - Some require pressing reset twice
Dell: - Ctrl + Alt + Enter
DTK BIOS: (Esc)
Gateway 2000: - F1
Hewlett Packard: - F1
IBM:
Older Models - In order to get into the configuration of the IBM setup screen (CMOS) screen you need to hold down both mouse buttons during boot up.
Aptiva - Press F1
IBM PS/2: Ctrl+Alt+Ins after Ctrl+Alt+Del
IBM PS/2 with reference partition: - Press Ins during boot
Some PS/2s, such as 75 and 90: - Ctrl Alt ?
Some PS/2s when pointer at top right of screen: - Ctrl + Ins
NEC: - F2
Packard Bell: - F1 or F2
Phoenix BIOS: (F1), (F2), or Ctrl+Alt+Esc
Phoenix BIOS: - Ctrl+Alt+S
Phoenix BIOS: - Ctrl+S
Phoenix BIOS: - Ctrl+Alt+Ins
Sharp Laptop 9020: - F2
Sony: (F3) while you are starting the PC, then (F2) or (F1)
Tandon computers: - Hold down the key after turning on power
Tandon: - Ctrl+Shift+Esc
Toshiba Laptops: - Toshiba Utility
Toshiba: - Press Esc during boot
Toshiba, Phoenix, late model PS/1 Value Point and 330s: - Press F1 during boot
Olivetti PC Pro: - Shift+Ctrl+Alt + Num Pad Del
Miscellaneous PC?s: - Ctrl + Esc or Ctrl and Alt and +
Zenith: - Ctrl+Alt+Ins
it was an emachines but had its motherboard replaced 12 months ago there is hardley any paste on cpu might try that first ive got a spare fan aswell that will be three fans 1 power unit 1 cpu 1 general will this help any more tips guys please
cunny
10th February, 2009, 11:24 PM
Just make sure everything is clean and free of dust once reseated with enough paste, it should be fine
jckw
10th February, 2009, 11:27 PM
Just make sure everything is clean and free of dust once reseated with enough paste, it should be finewill do m8 thanks
camelv
11th February, 2009, 03:40 PM
mine done the same a couple of years back m8 opened it up and it was caked in dust , i give it a good clean out and fitted an additional fan ,its been ok ever since m8.
cunny
11th February, 2009, 09:28 PM
how is the machine now?
jckw
14th February, 2009, 05:06 PM
how is the machine now? hiya lads pc still shuts down re applied paste to cpu and cleaned it all out its still shutting down without warning help please
cunny
14th February, 2009, 06:26 PM
hiya lads pc still shuts down re applied paste to cpu and cleaned it all out its still shutting down without warning help please
Does it just go dead? Will it turn back on straight away?
Bulld0g
14th February, 2009, 06:58 PM
Did you try removing the ram and trying each stick in turn ?
jckw
15th February, 2009, 02:15 AM
Does it just go dead? Will it turn back on straight away?i can turn it back on but it turns its self off after a short while each time i try it lasts less time before it goes off
jckw
15th February, 2009, 02:16 AM
Did you try removing the ram and trying each stick in turn ?yes m8 tryed taking ram out still the same could it b power supply unit
dj flame
15th February, 2009, 05:17 PM
yes m8 tryed taking ram out still the same could it b power supply unit
Ok pal, if you have tried the ram and applied new paste (did you get a better cooler?)
Have you overclocked it in any whaY or added any new bits that may require more juice?
If so then I would go for a better PSU but make sure you get a decent modle as a shite one could ~~~~ everything up.
I'd get one of these as they are stable as you like
ELT500AWT-ECO - 500W Enermax LibertyECO PSU, 86% Efficiency, 2x PCI-E 6+2P, 5xSATA, 2x12V 38A, PeakPower 550W - Scan.co.uk (http://www.scan.co.uk/Products/500W-Enermax-LibertyECO-PSU-86-Efficiency-2x-PCI-E-6plus2P-5xSATA-2x12V-38A-PeakPower-550W)
thats what I have
cheers
jckw
15th February, 2009, 07:38 PM
Ok pal, if you have tried the ram and applied new paste (did you get a better cooler?)
Have you overclocked it in any whaY or added any new bits that may require more juice?
If so then I would go for a better PSU but make sure you get a decent modle as a shite one could ~~~~ everything up.
I'd get one of these as they are stable as you like
ELT500AWT-ECO - 500W Enermax LibertyECO PSU, 86% Efficiency, 2x PCI-E 6+2P, 5xSATA, 2x12V 38A, PeakPower 550W - Scan.co.uk (http://www.scan.co.uk/Products/500W-Enermax-LibertyECO-PSU-86-Efficiency-2x-PCI-E-6plus2P-5xSATA-2x12V-38A-PeakPower-550W)
thats what I have
cheersthanks m8 will try this one
jckw
17th February, 2009, 01:11 AM
thanks m8 will try this onepc still shutting down tried new ram new paste to cpu and a third fan and this bastard is still shutting down when its been on for a while any pc engineers out there help please
jckw
17th February, 2009, 01:31 AM
pc still shutting down tried new ram new paste to cpu and a third fan and this bastard is still shutting down when its been on for a while any pc engineers out there help pleasechroma help me please
grizzlyt
17th February, 2009, 02:11 AM
It could be that your Pram battery is empty, then there can be a lot of problems.
On your motherboard, remove the battery and change it for a new one.
Try to find the red button to make a reset with a paper clip before replacing it.
I hope you can find the problem, sometimes the solution is in front of you.
cunny
17th February, 2009, 07:22 PM
pc still shutting down tried new ram new paste to cpu and a third fan and this bastard is still shutting down when its been on for a while any pc engineers out there help please
Can you list all the hardware in the machine please and the psu
aftermath
17th February, 2009, 07:42 PM
the heat damage might already goosed your CPU, so no matter how much paste you put on or what fan you use , it wont bring it back to life.
Have your motherboard checked out.
make sure all boards are securely in their slots.
Check all fans are working ( even in your power supply ),
memory or video faults should beep when there is an error.
Bulld0g
17th February, 2009, 08:21 PM
Just a thought m8. Have you checked the mobo isn't touching any metal and it's sitting on the plastic bumpers. In other words nothing loose causing the mobo to short out ?
I bet it turns out to be something simple. It done my head in when i had this problem. You deffo havent got a virus m8 ?
The sassa worm used to switch of the pc after a few minutes, I knowall AV have fixes for that now but if you checked all hardware etc why dont you try running 2-3 different av's to see if they pick anything up.
cunny
17th February, 2009, 09:51 PM
If you could give us a full list of parts inside, the power supply model. This aint over heating but as stated the over heating could have doent he damagem warped the bpard causing bad connections.
Could be a power issue. If you have 2 hard drives/dvd burners unplug 1, you need to run this pc on its bare minimum, nothing plugged in but the essentials, cpu, ram, video, no usbs if you can help it including keyboard and mouse
Also reset the bios to defaults. Making sure the boot sequence is set.
Also replace any ide/sata leads inside the pc.
As also stated check that the motherboard is mounted correctly.
Just wondering also is there any video out?
jckw
17th February, 2009, 10:14 PM
If you could give us a full list of parts inside, the power supply model. This aint over heating but as stated the over heating could have doent he damagem warped the bpard causing bad connections.
Could be a power issue. If you have 2 hard drives/dvd burners unplug 1, you need to run this pc on its bare minimum, nothing plugged in but the essentials, cpu, ram, video, no usbs if you can help it including keyboard and mouse
Also reset the bios to defaults. Making sure the boot sequence is set.
Also replace any ide/sata leads inside the pc.
As also stated check that the motherboard is mounted correctly.
Just wondering also is there any video out? tryin to the bastard keeps shuting down is there any were u can copy and paste info m8
thetarget
17th February, 2009, 10:37 PM
hi lads cpu temp 98c /210 and rising mb temp 28c 82f and steady is cpu overheating sorry it keeps goin of would you replace thermal heat sync on cpu
that is way way to hot mate
do us a favour download hardware monitor from here (http://www.cpuid.com/hwmonitor.php)
it will show the highest and lowest temps for your hardware
if your cpu is getting over 70c it's to hot
jckw
18th February, 2009, 01:52 AM
that is way way to hot mate
do us a favour download hardware monitor from here (http://www.cpuid.com/hwmonitor.php)
it will show the highest and lowest temps for your hardware
if your cpu is getting over 70c it's to hot ive found problem one of the motherboard connections from psu must have caught it cpu fan at 1 point it had bare wire cut it back and re conected its been on for 4 hours now also it must have needed re pasting cpu is only 30-35c now lets hope its sorted its still on today yippee
again thanks to all people who have helped me
dj flame
18th February, 2009, 06:19 PM
ive found problem one of the motherboard connections from psu must have caught it cpu fan at 1 point it had bare wire cut it back and re conected its been on for 4 hours now also it must have needed re pasting cpu is only 30-35c now lets hope its sorted its still on today yippee
again thanks to all people who have helped me
Thank ~~~~ for that...happy FIXED computer pal:five:
jckw
18th February, 2009, 06:23 PM
Thank ~~~~ for that...happy FIXED computer pal:five:cheers m8 thanks 4 the help
Bulld0g
18th February, 2009, 09:21 PM
Good stuff m8, i knew you'd get there in the end :)
cunny
18th February, 2009, 10:31 PM
Knew this would turn out to be something stupid, that happened to me a few years back come to think about it.
Anyway glad its sorted now:manuscarf:
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