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Computer keep shutting down for no reason. Tryed to change hardwares

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I have big problems with my computer... For an unknown reason my computer started randomly shutting down for no reason... It is not a reboot, not a blue screen, the computer just power off without any reason, just like if it was suddently unplugged. Sometimes it will shut down a few minutes after i launch windows, sometimes it will last an hour or two and then will shut down suddently

I tryed many thing without success

- Tryed to change my power supply
- Tryed to change my memory
- Tryed to change my hard disk and reinstall window
- Tryed to change my graphic card
- Tryed to put fresh thermal paste on my CPU
I even tryed to change my power supply wire\power cord

Nothing worked... I have been using this computer for 3 years and never had any problem... I don't understand whats going on

My CPU temperature is normal and my case is very well ventilated. It is not an overheating problem

My computer is an AMD Dual Core 6600+ with 4GB ram and 450w power supply. I'm using Windows XP

Since i changed almost all piece of hardware on my computer, i think it must be a problem either with the motherboard or the CPU itself.... I don't have spare board or CPU so i will have to buy a new board and a new CPU.... What should i start with ? Does this looks like a CPU problem or a motherboard problem ?
Also, do you think that updating the BIOS could change something?

thanks for help

More about : computer shutting reason tryed change hardwares

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CPUs Master

had almost exact same problem
and it wast the motherboard
bad capacitors leaking and bulging

I would visually inspect the caps

also rare for cpus to go without being overclocked/voltage increase
also a cpu either works or doesnt

as far as upgrade path for AMD
I am not the one to talk to
I am more of an Intel guy
though I would say that you should go with AM3 mobo
I dont know if your current cpu would work in AM3
though from what I understand AMD is good with
socket compatibility
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I already tryed to change the power supply. I use a 450W power supply, always worked fine. I have another spare 450W power supply, its almost brand new. Only used a couple of times and working fine. I switched the power supply with the other one and i still have same problem...
CPUs Master

And could you try to stress test the parts you havent changed?Cpu with Prime, Checking ram with memtest.I think it should be the Mobo in my opinion because often if Ram was fautly there would be Cache dumps or blue screens that randomly appear after that restart the pc.
CPUs Master

From my experience it sounds like the motherboard

I had a tower that i changed absolutley everything

I had the same problem

First it was freezing

Then it would just do a hard reboot pr shut off

I dont want to say for sure that is what your problem is
since changing a mobo is major job

if you were ready for upgrade then no big deal I guess

You might want to wait and see if somebody else has better idea
for mine it was mostly when I was online using flash content for some reason

I guess my onboard ethernet fried and was causing a fault

I was lucky (i guess) that I had blown caps so that when I looked at the mobo
I knew for sure that was what it was

No i wasnt really ready for upgrade... my computer is still good for what i am doing.... i think im just going to replace the motherboard but i dont know which one to buy....
any suggestions to replace an m2n-e SLI, for cheap ??
CPUs Master

You need one of the AMD guys to answer
Hopefully you can get a newer board that will work with your current cpu
and gives you the ability to go for a new up to date cpu later

I know that AMD sockets are very backwards compatible
so hopefully an AM3 socket board can support your cpu
and this way later when you need it you have a good upgrade path

I am just not an AMD guy who can answer that question :( 
CPUs Master

the best bet is to select a best answer for this thread
and start a new one asking what a good mobo for
a 6600+ is

I think that if cheap is what you are looking for then
you would want an AM2+ board
but be careful saving 20-30 dollars on a AM2+ board now
could cause you to spend alot more later when you
decide to upgrade cpu
CPUs Master

king smp said:
the best bet is to select a best answer for this thread
and start a new one asking what a good mobo for
a 6600+ is

I think that if cheap is what you are looking for then
you would want an AM2+ board
but be careful saving 20-30 dollars on a AM2+ board now
could cause you to spend alot more later when you
decide to upgrade cpu

Yes..And please dont give the best answer to king smp!
CPUs Master

well zulfadhli if you can pick out an inexpensive good amd board that would be best for him then you just might get a best answer

dont worry I have plenty of best answers
i am not greedy :) 
27 best answers in CPUs alone not counting other categories
should be getting my silver badge very soon

dont worry maybe you can get a bronze
CPU badge one of these days :) 

ok i have started looking at new motherboards, read a couple of wikipedia pages but i'm not too sure if i understand

I would like to get a motherboard that can support DDR3 and my actual AMD Athlon Dual Core CPU..... DDR3 is cheap now, so i will just upgrade my memory and go with DDR3... But i'm not ready to upgrade my CPU right now

Ideally i would like to buy something that will be good enough to upgrade my CPU for something better in a year or so.... So best pick would be an AM3 socket

i'm not too sure if i understand correctly... on wikipedia it said that Socket AM3 is backward compatible with AM2 cpu but only if it run with DDR2 ???? Does this means that i cant get an AM2 cpu on AM3 motherboard with DDR3 ???
CPUs Master

king smp said:
well zulfadhli if you can pick out an inexpensive good amd board that would be best for him then you just might get a best answer

dont worry I have plenty of best answers
i am not greedy :) 
27 best answers in CPUs alone not counting other categories
should be getting my silver badge very soon

dont worry maybe you can get a bronze
CPU badge one of these days :) 

I am trying mate..But its so hard..

Best solution

CPUs Master

looking at this
http://www.tomshardware.com/reviews/socket-am3-phenom,2...

it looks like

a am3 socket cpu will fit a am2/2+
but a am2/2+ cpu DOESNT fit AM3
If I read that right

warning I am not amd guy as i said so
hopefully of the amd experts will look at this thread

so it looks like you would need a AM2+ board
which would work with alot of AM3 cpus
so your upgrade path would be good

I just dont think you could use Bulldozer in AM2+
but you would still have alot of good choices

@zulfadhli - I was trying not too be too mean but I didnt understand what provoked your comment
I dont believe I ever angered you?



Wikipedia in french said that AM2 will fit AM3 board but only with DDR2.... And if i invest money i'd rather have DDR3, especially since you can find 4GBRAM of DDR3 for only 50$ now....

So *** this, i'll just invest in a new computer.... i'm thinking to buy a Phenom2 Quad Core 965 3.3GHz with 8 megs cache its pretty good for the price (164$).
As for the motherboard i'm thinking of Asus M4A77TD socket am3 with 4 DDR3 slots...

With my 4GB ram it will cost me 351$ total.... im still unsure if i should buy that or invest my money in an intel core i7
CPUs Master

ungovernable said:
Wikipedia in french said that AM2 will fit AM3 board but only with DDR2.... And if i invest money i'd rather have DDR3, especially since you can find 4GBRAM of DDR3 for only 50$ now....

So *** this, i'll just invest in a new computer.... i'm thinking to buy a Phenom2 Quad Core 965 3.3GHz with 8 megs cache its pretty good for the price (164$).
As for the motherboard i'm thinking of Asus M4A77TD socket am3 with 4 DDR3 slots...

With my 4GB ram it will cost me 351$ total.... im still unsure if i should buy that or invest my money in an intel core i7



thank you for selecting me as Best Answer

that is a tough choice

i am an Intel guy but not a fanboy
so I would go with whatever is more performance for the money

the 965 especially with a nice OC is a good cpu
i am not sure of prices of where you are at
if there is a big price difference between the 965 and the I7 than I would
lean towards the 965
try to get the BE version if you are an overclocker
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