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Laptop wont stop crashing


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#16 OP killswitch92

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Posted 11 November 2013 - 02:03

yea i've stopped thinking its a heating issue once i noticed i picked it up and it crashed. i'm trying to think if this started before vista updated or after...

i don't think the cmos battery would cause it to crash either, but its worth a try. i've taken the battery out and it still crashed the same way, had it only powered using the battery, same deal... i'm already looking at prices for a new mobo online. they're not too expensive, but id kick myself in the head if i bought a new one just to find out it wasn't the mobo lol. i have the whole day off tomorrow, so in the morning after some coffee, ill try reconnecting everything i can find and update you guys. thanks for all the help so far, its given me some hope :)




#17 vcfan

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Posted 11 November 2013 - 02:21

a very common problem with older laptops,especially with **** poor cooling is the chipset bga chip losing contact with the motherboard. because of the constant heat and cool cycles, the crappy lead free solder balls become brittle,and crack. the fix is a solder reflow, which needs special equipment to do. moving the laptop causes micro vibrations which could lead to the chip contacts losing contact from the board for a split second,leading to a crash.

 

it could also be something loose in the unit that's conductive,and its causing shorts when it moves around.



#18 OP killswitch92

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Posted 11 November 2013 - 18:25

so i opened up my laptop, took it completely apart, reconnected everything, reset the bios. turns out the battery is soldered to the mobo =/ put it all back together, went into bios and theres nothing at all mentioning temps or clock speeds. right now i have it sitting on a cooling dock and im still getting the same crash problem, after it crashed it restored the password for bios so im locked out again... but temps r normal, everything 40C and below. im figuring its either bad mobo or the harddrive is acting up, maybe when i lift it the plates spinning causes it to crash? never had that problem before though.

 

 

a very common problem with older laptops,especially with **** poor cooling is the chipset bga chip losing contact with the motherboard. because of the constant heat and cool cycles, the crappy lead free solder balls become brittle,and crack. the fix is a solder reflow, which needs special equipment to do. moving the laptop causes micro vibrations which could lead to the chip contacts losing contact from the board for a split second,leading to a crash.

 

it could also be something loose in the unit that's conductive,and its causing shorts when it moves around.

 

i saw videos about this while i was searching for what might be causing this. they were saying you can fix it with a heat gun... ill try anything at this point lol. anybody ever try it?



#19 vcfan

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Posted 11 November 2013 - 18:36

so i opened up my laptop, took it completely apart, reconnected everything, reset the bios. turns out the battery is soldered to the mobo =/ put it all back together, went into bios and theres nothing at all mentioning temps or clock speeds. right now i have it sitting on a cooling dock and im still getting the same crash problem, after it crashed it restored the password for bios so im locked out again... but temps r normal, everything 40C and below. im figuring its either bad mobo or the harddrive is acting up, maybe when i lift it the plates spinning causes it to crash? never had that problem before though.
 
 
 
i saw videos about this while i was searching for what might be causing this. they were saying you can fix it with a heat gun... ill try anything at this point lol. anybody ever try it?


heat gun might work, temporarily. most of the time,for a permanent fix, you need a proper reflow. I've done the heat gun trick numerous times. sometimes it'll last a day, sometimes a month. it really depends on the state of the solder.

what you want to do is remove the heatsink, clean of any thermal paste. cover everything around the chip with tin foil,leaving only the chipset chip exposed. do the same on the backside of the board, leaving a spot under the chipset chip exposed as well. I usually do 1 minute bottom, one minute top, then repeat once or twice more. let it cool, then connect everything back up.

#20 +snaphat (Myles Landwehr)

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Posted 13 November 2013 - 00:54

so i opened up my laptop, took it completely apart, reconnected everything, reset the bios. turns out the battery is soldered to the mobo =/ put it all back together, went into bios and theres nothing at all mentioning temps or clock speeds. right now i have it sitting on a cooling dock and im still getting the same crash problem, after it crashed it restored the password for bios so im locked out again... but temps r normal, everything 40C and below. im figuring its either bad mobo or the harddrive is acting up, maybe when i lift it the plates spinning causes it to crash? never had that problem before though.

 

 

 

i saw videos about this while i was searching for what might be causing this. they were saying you can fix it with a heat gun... ill try anything at this point lol. anybody ever try it?

 

Depending on the laptop model maybe it is possible to test if it is the hdd by lightly tapping it or where it is and seeing if there is a freeze? I suspect it isn't just the hdd given that your mobo settings are resetting.



#21 Praetor

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Posted 13 November 2013 - 06:01

Acer eh? Seems that the mainboard is kicking the bucket; I've seen some old Acer laptops that had completely weird errors (DVD drive would not work no matter the drive installed or DVD inserted, random reboots, etc.) all due to faulty mainboards. Also if speedfan isn't reporting a overheat it's because it isn't overheating (50º+ for a HDD is too much, check the SMART of the drive to see if it's failing as well).

 

Now, does the laptop reboots when you nudge it? Again seems like a mainboard issue (faulty one or could be shorting).



#22 Decebalvs Rex

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Posted 13 November 2013 - 07:47

Overheating should restart it (automatic safe measures). Reseat the RAM and HDD , reinstall Windows and I fear that some controllers or even their drivers might crash it. Try to open Task Manager and keep a watchful eye on the CPU and memory usage. If they suddenly go higher while crashing you might have a software related problem. What about 3rd party devices ? It could be the webcam , some faulty USB key or even your mouse.

 

Edit: I've read that the nudging issue causes the problem... well, it is clearly a hardware issue! It happened that I moved my PCI ethernet card while my PC was working and had the same symptoms! One hardware piece lost its connection and causes your computer to freeze.


Edited by Decebalvs Rex, 13 November 2013 - 07:55.


#23 OP killswitch92

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Posted 13 November 2013 - 18:05

i think im ruling this one out as a faulty mobo. i either need a reflow or just buy a new board. it seems like one of the chips is coming loose so when i pick up the laptop the board slightly bends and that certain chip is breaking connection. i have it sitting on an unplugged cooling dock to support the underside and since then, no freezes, crashes, errors, random reboots. i can move the screen, nudge it, tap the spot where the hard drive is and nothing. not overheating, no cpu spikes, already reseated the ram and hard drive, checked smartfan, hdd isnt failing. so i guess i just have to either try and do a reflow with a heat gun or give in and get a new mother board or even better. a new laptop... preferably not an acer.

 

i had an acer in the past and that thing fell to pieces. HORRIBLE errors and hardware issues going on with it. the case melted and warped so bad it just gave out and snapped in half one day trying to lift the screen. keyboard is completely wrecked, nonstop post error beeps even when it boots into the OS, once in the OS it just crashes, i think it overheats at that point. and its only 3 years old. ive had this one im using for about 2yrs and feared its heading the same path -.-

 

thanks for all your help though guys. really appreciate it :)

it helped me narrow it down and figure out what it most likely was. learned something new, and had a good time doing it (although stressful lol)



#24 +snaphat (Myles Landwehr)

snaphat (Myles Landwehr)

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Posted 13 November 2013 - 21:08

i think im ruling this one out as a faulty mobo. i either need a reflow or just buy a new board. it seems like one of the chips is coming loose so when i pick up the laptop the board slightly bends and that certain chip is breaking connection. i have it sitting on an unplugged cooling dock to support the underside and since then, no freezes, crashes, errors, random reboots. i can move the screen, nudge it, tap the spot where the hard drive is and nothing. not overheating, no cpu spikes, already reseated the ram and hard drive, checked smartfan, hdd isnt failing. so i guess i just have to either try and do a reflow with a heat gun or give in and get a new mother board or even better. a new laptop... preferably not an acer.

 

i had an acer in the past and that thing fell to pieces. HORRIBLE errors and hardware issues going on with it. the case melted and warped so bad it just gave out and snapped in half one day trying to lift the screen. keyboard is completely wrecked, nonstop post error beeps even when it boots into the OS, once in the OS it just crashes, i think it overheats at that point. and its only 3 years old. ive had this one im using for about 2yrs and feared its heading the same path -.-

 

thanks for all your help though guys. really appreciate it :)

it helped me narrow it down and figure out what it most likely was. learned something new, and had a good time doing it (although stressful lol)

 

Good luck in your future laptop adventures! Laptops are supposedly cheaper this season because of the Haswell release. Intel made an announcement saying as much iirc. I ended up getting a Toshiba with an Intel 1370u from bestbuy for $230





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