Question about HP Pavilion a1240n (EG136AA) PC Desktop

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Mother board i want to about mother board to repair some minor ideas

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  • mrfrench7777 Mar 20, 2008

    I have a Sony Vaio (VGC-RB42G). The systems dies and has not video. The fans run at max but used to slow as the system boots. It is not even getting into the bios. Is the mother board dead or is the battery dead? Any help or suggestion? Thanks



    Tom

  • Anonymous Apr 14, 2008

    The desktop unit will not boot, or get to bios screen. It also has no video output.

  • Anonymous Apr 22, 2008

    no video,put new pci video card ,no help, all fans work , light on harddrive looks like its trying to load,but still no video,check out display on another computer worked fine. so help pls!

  • mitsuman May 25, 2008

    I'm having the same problem. After about 15 tries it booted then turned off and won't boot again. no video,put
    new pci video card ,no help, all fans work , light on harddrive looks
    like its trying to load,but still no video,check out display on another
    computer worked fine. so help pls!

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It's a possible motherboard issue. Had same issue and troubleshot to the MB. Everything else checked out fine. PC was working fine up till then.

Posted on Aug 14, 2008

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Mitsuman, and guest, check your power supply. Sounds like a voltage rail is weak or has gone south for the winter. Electrolytic capacitors break down, and there was a rash of bad capacitors from a capacitor maker. Seems they had stolen receipe for the electrolytic paste, and it developed gas after a time. The little cans popped open from the gas! lol!

Posted on Jun 09, 2008

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If the motherboard came with on-board video and you have a black screen, the only thing you can check is the monitor itself by swapping the monitor out with one you know works. If you do this and still have a black screen, then the problem is the on-board video. There is no way to repair that problem as it is built into the motherboard. If you put a separate video card in and still have black screen, this happens because you have to change a setting in the computer's BIOS for the computer to know it has to use the video card you put in instead of the on-board video. Unfortunately, you cannot change the BIOS setting without seeing what you are doing on the screen (that does not work). It's time to buy a new computer. Replacing motherboards is hardly worth the cost -- and next time do not get a computer with an on-board video (other on-board components are fine).

Posted on May 19, 2008

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What do you mean Motherboard repair?

Posted on Sep 13, 2007

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Posted on Jan 02, 2017

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