Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Motherboard catching on fire after PC is dropped?

  1. #1
    Join Date
    Jan 2017
    Location
    Quebec
    Posts
    15
    Thanks Thanks Given 
    1
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default Motherboard catching on fire after PC is dropped?

    Had a customer come in and they dropped the PC. It's a ThinkStation E30, so it's not a crap machine at all. There's a chip on top of the socket that catches on fire when you power it up (the PSU that's in it has good protection so it doesn't power up at all, nice) but I used another one and yeah.

    Here's a picture of the damage: http://i.imgur.com/vt96pbl.jpg

    Now I'm obviously not looking to repair this (but if you have one for sale... lol), I was wondering how does this happen?

    Anyways, thanks for answeing

  2. #2
    Join Date
    Jun 2010
    Location
    The Netherlands
    Posts
    5,276
    Thanks Thanks Given 
    374
    Thanks Thanks Received 
    92
    Thanked in
    73 Posts

    Default

    Well probably like you said. The original power supply had a good working protection but the second one didn't. So when you connected the second one on the defective motherboard it didn't shutdown but instead just make it worse.

  3. #3
    Join Date
    Jan 2017
    Location
    Quebec
    Posts
    15
    Thanks Thanks Given 
    1
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Quote Originally Posted by -The_Mask- View Post
    Well probably like you said. The original power supply had a good working protection but the second one didn't. So when you connected the second one on the defective motherboard it didn't shutdown but instead just make it worse.
    Does that mean that the other PSUs I used lack good protection?

  4. #4
    Join Date
    Jul 2009
    Location
    Germany
    Posts
    3,579
    Thanks Thanks Given 
    6
    Thanks Thanks Received 
    48
    Thanked in
    45 Posts

    Default

    Seems like that. Why else should the High Side MOSFET burn if not due to too much current while shorted?

    It can be possible to repair by the way, you 'only' need to replace the MOSFET. Though due to heat it can be impossible to remove without damaging the board...

  5. #5
    Join Date
    Jan 2017
    Location
    Quebec
    Posts
    15
    Thanks Thanks Given 
    1
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Yeah I'm not equipped at all to do SMD work lol, but I'm not sure if it's the only thing that's wrong with it.

    The other PSUs I tried with were higher power than the one that came with it, but I think the one that came with it is better (it has active PFC)

  6. #6
    Join Date
    Jul 2009
    Location
    Germany
    Posts
    3,579
    Thanks Thanks Given 
    6
    Thanks Thanks Received 
    48
    Thanked in
    45 Posts

    Default

    what PSU are you talking about?

  7. #7
    Join Date
    Jan 2017
    Location
    Quebec
    Posts
    15
    Thanks Thanks Given 
    1
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    The original PSU is an AcBel 280W model PC9008.

    The ones that didn't protect it were an Antec BP350 and a HiPro HP-D3537F3R

  8. #8
    Join Date
    Feb 2008
    Location
    Norway
    Posts
    684
    Thanks Thanks Given 
    20
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Wow, that's kinda what happened to my Asus P4C-800E Deluxe mobo back in the days. (2005 or so) My faulty 410W TT Purepower PSU (which lived for 4-5 months and wasn't really 410W with a measly 18A on the 12V rail) made the southbridge chip literally go up in "flames". When I powered up the computer one day, the chip sparked and you got that familiar smell of burned silicon.

    Rig 1: Core i5 6600K - Asus Z170 Pro Gaming - Corsair Vengeance 16GB PC2666 RAM - MSI GeForce GTX1070 - Samsung EVO 850 500GB SSD + 2TB Seagate SSHD - Corsair RM550x - Fractal Design R5 - Win10 64

    Rig 2: Ryzen 1700X @ 3.9 GHz - Gigabyte X370 Gaming 5 - Corsair LPX 16GB PC3200 RAM - Gigabyte GeForce 1070 - 250GB Samsung EVO 850 SSD - Corsair RM650i - Win10 64
    HTPC: AMD A6-6400k - MSI FM2-A75IA-E53 mITX - 8GB Kingston HyperX 1866MHz - 3.5TB storage - Silver Power 460W passive - CM Elite 120

  9. #9
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    15,940
    Thanks Thanks Given 
    528
    Thanks Thanks Received 
    211
    Thanked in
    154 Posts

    Default

    I used to have MSI Socket A boards do this to me all of the time. Not PSU related... just shitty motherboard.

  10. #10
    Join Date
    May 2010
    Location
    Missouri; USA
    Posts
    5,072
    Thanks Thanks Given 
    413
    Thanks Thanks Received 
    18
    Thanked in
    13 Posts

    Default

    Quote Originally Posted by jonnyGURU View Post
    I used to have MSI Socket A boards do this to me all of the time. Not PSU related... just shitty motherboard.
    Was gonna say, that was just an MSI thing.
    I can't remember exactly when they stepped things up in the motherboard department but I wanna say it was somewhere around Sandybridge.

    I still hold a bit of a grudge to their boards from the sheer number of P6N SLI-FI boards I had to replace back in the day. That 8800 GTS SLI on a budget was too tempting for some folks.

Similar Threads

  1. Can anyone tell me anything about this fire hazard?
    By ampageg2 in forum PC Power Supply Discussion
    Replies: 7
    Last Post: 02-26-2015, 06:24 PM
  2. Finally catching a break.
    By Silk_the_Absent1 in forum General PC Hardware
    Replies: 16
    Last Post: 04-17-2009, 11:28 PM
  3. sooo? have intel cpu prices dropped?
    By ianm2 in forum CPU Discussion
    Replies: 6
    Last Post: 07-23-2007, 09:16 AM
  4. Dell is on fire!
    By CAD4466HK in forum Off Topic
    Replies: 11
    Last Post: 11-27-2006, 02:42 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •