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My computer keeps freezing up


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#1 Uselesslight

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Posted 11 June 2014 - 08:17 PM

Hey everyone, I'm having this weird problem with my Acer Aspire 5517, Windows 7, 4GB DDR2, 150GB HDD yada yada..  Anyway, it keeps freezing at seemingly random times for upwards of 5 minutes at a time.  It happens the most frequently when I view a youtube video, but it does happen often while I'm doing other things like just surfing the net or word processing even.  If I leave it for awhile it unfreezes eventually and I can continue what I was doing prior to that.  One of the most annoying parts of the problem is that it doesn't leave any traces in the event viewer, even if I'm impatient and I hold the power button and hard shutdown...  Please help?  I would at least expect to see a fatal error recovery screen from Windows haha, but nothing......

 

 

It froze twice while I was writing this up

 

 

What I've done so far:

 

 -HDD Scan with WDDiag, HDTune and I even tried with Seatools and they all came back perfectly normal, not even over temp warnings

 -Memtest86, left running overnight and did several passes with no errors

 -Booted into safe-mode with networking, it still froze after 10 minutes of use

 -Used Norton Ghost to clone my drive to a brand new 500GB hdd and the problem persisted even on the new HDD

 -Virus/Malware/Rootkit scans with hijackthis, farbar service scanner, mbam, SBSD, roguekiller, adwcleaner, rkill, mse and KAS Rescue disk and they all came back clean

 -Reinstalled Windows 7 and all of the updates

 -I suspected flash player plugin to be the problem, so I uninstalled the plugin and didn't watch any flash content for that period but the problem persisted again after that, I also did the same with the java plugin as well, but with the same results

 -Made sure all of my drivers were up-to-date from the manufacturers website, not using windows update...in some cases I rolled back drivers to try older ones...problem still persists



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#2 wpgwpg

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Posted 11 June 2014 - 08:42 PM

 You've done a lot of the right things, but I'm wondering about temperatures.  I use SpeedFan to check them, but there're others as well.  If the cores get over 50 degrees C, that could be a problem.  Based on the size of your hard drive, I'm guessing your computer is a few years old.  When's the last time you blew compressed gas through the air intake vents to blow the accumulated dust out?  If over 6 months, that's something you really need to do.  Dust builds up inside these things and consequently causes overheating.  That causes things to really slow down, can cause crashes, and worst case can damage circuits.

 

Good luck.


Everyone with a computer should back his system up to an external hard drive regularly.  :thumbsup:

#3 Netghost56

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Posted 11 June 2014 - 09:10 PM

Since you've tested everything else, I would suspect a bad motherboard or CPU. I would at least do a cursory visual exam of the board to see if you have any damage.



#4 Uselesslight

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Posted 11 June 2014 - 09:48 PM

I'd hoped to avoid doing a visual exam of the board lol.. 

 

WPGWPG the computer is dusted on a regular basis, I'm a technician, but in this case I was at a loss..

 

It appears that there are swollen capacitors on the motherboard, I haven't generally seen bad caps caue the computer to freeze up though..  I doubt it's impossible, does anyone have some insight on this?



#5 Netghost56

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Posted 12 June 2014 - 08:25 AM

I've seen boards continue to function with lots of blown, leaking caps...don't ask me how!

 

I've ALSO seen boards completely fail with just one swollen cap. Currently have one like this on the bench (3 swollen caps)

 

It all comes down to which caps are affected, IMO.

 

Maybe if you got ahold of the board diagram and checked which caps are swollen, to see what it handles.



#6 wpgwpg

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Posted 12 June 2014 - 09:25 AM

 You haven't said how old your computer is, but I'm wondering about temperatures still.  I see these have been around since 2009.  You might need to re-apply thermal paste between the CPU and its cooling fan.  You could inspect the mobo at the same time.   :thumbsup2:

 

Good luck.


Everyone with a computer should back his system up to an external hard drive regularly.  :thumbsup:

#7 ranchhand_

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Posted 12 June 2014 - 10:52 PM

 

swollen capacitors on the motherboard

I suspect that is your problem. Even in the unlikely event it turns out not to be, the days of the mobo are limited anyway. Do any of them have electrolyte oozing out the top or bottoms?


Help Requests: If there is no reply after 3 days I remove the thread from my answer list. For further help PM me.


#8 Uselesslight

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Posted 16 June 2014 - 04:34 PM

Not as far as I can tell, but yeah I think you guys may be right about the MOBO.  This computer is an acer aspire 5517, so its pretty old now.  Thanks everyone for the replies!






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