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#1 2008-02-27 12:57:35

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

sudden shut down

Dear all

has any of you ever experienced sudden shut downs of your system (not related with empty battery)?
It has just happened to me twice in a few minutes

Cippa

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#2 2008-02-27 13:04:15

Allan
Pacman
From: Brisbane, AU
Registered: 2007-06-09
Posts: 11,405
Website

Re: sudden shut down

Your system isn't overheating, is it?

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#3 2008-02-27 13:34:09

SpookyET
Member
Registered: 2008-01-27
Posts: 410

Re: sudden shut down

Mine is overheating and shuts down. I don't think it detects the temp properly.

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#4 2008-02-28 22:38:57

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

Re: sudden shut down

I don't think it is overheating but I would like to have kima back online I could check the T

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#5 2008-02-28 22:56:41

Allan
Pacman
From: Brisbane, AU
Registered: 2007-06-09
Posts: 11,405
Website

Re: sudden shut down

I also had troubles with a faulty power supply causing random shutdowns on one of my laptops.

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#6 2008-05-15 17:47:34

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

Re: sudden shut down

bump

I think I know what is the cause of the sudden shutdowns
I have noticed such shutdowns always happen in conjuction with the loading or closing of a flash movie in a website (youtube kind of thing)

any clue???

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#7 2008-05-15 18:14:10

MONODA
Member
Registered: 2008-02-09
Posts: 256

Re: sudden shut down

install conky, and creat ~/.conkyrc with contents:
background no
font Sans:size=8
#xftfont Sans:size=10
use_xft yes
xftalpha 0.9
update_interval 1.0
total_run_times 0
own_window yes
own_window_type normal
own_window_transparent yes
own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager
double_buffer yes
minimum_size 220 5
maximum_width 220
draw_shades yes
draw_outline no
draw_borders no
draw_graph_borders no
default_color F3E2A4
default_shade_color black
default_outline_color green
alignment top_right
gap_x 30
gap_y 60
no_buffers yes
uppercase no
cpu_avg_samples 2
override_utf8_locale no
uppercase yes # set to yes if you want all text to be in uppercase

TEXT
${color 514C4C}SYSTEM ${hr 1} ${color}

Hostname: $alignr$nodename
Kernel: $alignr$kernel
Uptime: $alignr$uptime
Temp: ${alignr}${acpitemp}C

launch conky, you should see the temperature in the conky window, monitor it and see if it it too hot.

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#8 2008-05-15 18:14:24

ybotspawn
Member
From: Oz
Registered: 2008-04-06
Posts: 140

Re: sudden shut down

would this have any remote possibility of being linked to why your computer is running slow?  Survey says!!!


"As long as people are going to call you a lunatic anyway,
why not get the benefit of it? It liberates you from convention. "

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#9 2008-05-15 19:50:23

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

Re: sudden shut down

I am sure it is not the temperature. My temperature monitor says I am regularly under 60 degrees centigrade

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#10 2008-07-10 23:20:54

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

Re: sudden shut down

any clues on this??? it really only happens with flash movies

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#11 2008-07-10 23:28:55

fwojciec
Member
Registered: 2007-05-20
Posts: 1,411

Re: sudden shut down

Cippa Lippa wrote:

any clues on this??? it really only happens with flash movies

I'd still say it's most likely overheating -- flash uses the cpu rather intensively, which increases the core temperature, which leads to overheating, which results in forced power off to protect the hardware.  Both laptops with overheating issues that I've seen had the tendency to shut down by themselves while watching flash content.

Last edited by fwojciec (2008-07-10 23:31:01)

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#12 2008-07-11 18:36:22

rooloo
Member
Registered: 2008-07-09
Posts: 218

Re: sudden shut down

Cippa Lippa wrote:

bump

I think I know what is the cause of the sudden shutdowns
I have noticed such shutdowns always happen in conjuction with the loading or closing of a flash movie in a website (youtube kind of thing)

any clue???

I am sure it is not the temperature. My temperature monitor says I am regularly under 60 degrees centigrade

I am sure that is exactly what is happening. Anything internet/browser related is on of the most daily stress intensive programs one will use. Also remember, as things heat up, available power will suffer as well. 60 degree C is very high if you ask me. 
I won't let mine get over 50C and I have an auto shutdown of my system set in my bios at 60C. My computer normally runs at 38C.

I say open the case, get a vaccum cleaner and a can of air and goto to town. U will be surprised!



edit: there is a fan on the power supply, it will suck in all sorts of dirt and dust. If u can't cool the PSU it will utterly fail.

Last edited by rooloo (2008-07-11 18:40:37)

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#13 2008-07-11 18:50:04

lldmer
Member
From: Amsterdam
Registered: 2008-05-17
Posts: 119

Re: sudden shut down

It would still be weird it happens only on loading and closing of flash (not on other flashthingies, such as watching a video). Also, you would think that if flash is causing the CPU to get hot, some other cpu-intensive stuff (like compiling, watching a 1080i file, or whatever) would also cause the PC to shutdown. You might also wanna use sensors to see what's happening to your cpu temperature when you're using flash.

Recently, I also had some hang-ups when closing a fullscreen youtube video. I could just kill firefox from a VT however.

I am sure it is not the temperature. My temperature monitor says I am regularly under 60 degrees centigrade

Does that mean you sometimes exceed 60 degress? By how much? And does this coincide with shutdowns?

Last edited by lldmer (2008-07-11 18:50:58)


For lack of better words: chair, never, toothbrush, really. Ohw, and fish!

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#14 2008-07-11 19:09:47

pheon
Member
From: Berlin, Germany
Registered: 2008-05-14
Posts: 91

Re: sudden shut down

Do you use the newest flash-plugin (with hardwareacceleration)?

I could imagine that the new flash-plugin heats up the GPU.

Of course any other defect hardware could cause this strange behaviour.


watching someone else use your computer is like watching a drunk orangutan solve a rubix cube

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#15 2008-07-20 12:43:10

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

Re: sudden shut down

lldmer wrote:

It would still be weird it happens only on loading and closing of flash (not on other flashthingies, such as watching a video). Also, you would think that if flash is causing the CPU to get hot, some other cpu-intensive stuff (like compiling, watching a 1080i file, or whatever) would also cause the PC to shutdown. You might also wanna use sensors to see what's happening to your cpu temperature when you're using flash.

Recently, I also had some hang-ups when closing a fullscreen youtube video. I could just kill firefox from a VT however.

I am sure it is not the temperature. My temperature monitor says I am regularly under 60 degrees centigrade

Does that mean you sometimes exceed 60 degress? By how much? And does this coincide with shutdowns?

I do often exceed 60 degrees... the fan really starts to kick in powerfully once I go past 70 degrees.
I have not found a reliable way yet to control the fan to keep the temperature below 60

this does not anyway coincide with shutdown as I have more than once seen this happe when the cpu was at 56 degrees or so

Cippa

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#16 2008-07-20 13:24:11

finferflu
Forum Fellow
From: Manchester, UK
Registered: 2007-06-21
Posts: 1,899
Website

Re: sudden shut down

Perhaps you should open it and see if you find bunnies of dust. That helped keeping the temperature down a lot on my machine.


Have you Syued today?
Free music for free people! | Earthlings

"Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." -- A. de Saint-Exupery

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#17 2008-07-20 17:40:03

rooloo
Member
Registered: 2008-07-09
Posts: 218

Re: sudden shut down

I won't let mine get over 50C and I have an auto shutdown of my system set in my bios at 60C. My computer normally runs at 38C.

Do you have fans on your memory sticks? Remember there is more then just core PU's in side of computers with that need to be cooled.

Not to mention, do you think a temperature sensor is gonna work correctly if it has 10 years of dust laying on top of it?

Last edited by rooloo (2008-07-20 17:46:34)

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#18 2008-07-21 11:16:22

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

Re: sudden shut down

my computer is hardly a year old... not likely that there are tons of dust on it.

Cippa

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#19 2008-07-21 11:21:46

Cippa Lippa
Member
From: Toronto, ON
Registered: 2007-04-12
Posts: 159

Re: sudden shut down

the only way I can actually seem to control the fan is to use gkrellm (even though I use kde) with the i8k plugin. In this way I can get the fan to keep the temperature below 60 degrees by staying at 16000 rpm (even though it does a bit of on-off-on-off). I am kind of disappointed by how poor is the control of fans in LInux, especially considering that I am running a very popular laptop (dell latitude)

Cippa

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