Can I upgrade or buy a better motherboard that will fit a OptiPlex 755 DT (desktop)

I'm running 8gb ram DDR2 and 305watts PSU but I'm upgradin it to 405watts
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More about upgrade buy motherboard fit optiplex 755 desktop
  1. What issues are you having? What improvement are you looking for? Generally it's better with Dell BTX to just get a whole computer that has what you need. Their cases are cut out in the rear to fit each motherboard model, so any chenge there requires metal work. they use proprietary front I/O cables and sockets that change over time. For instance if you wanted a Optiplex 780MB to get DDR3 the front cable pinout is different requiring the cable, and front panel circuit board to be swapped which might not fit. There are metal tabs under all the memory slots, and expansion sockets. If the new board has any difference there you will have metal under live motherboard components. If you could define "Better" I could maybe give more specific advice.
    The better motherboards often came in bigger cases which have more expansion slots. so won't fit in your DT format.
  2. Mini Tower (MT, Small MT) or Slim Desktop (Small Form Factor).

    Both sizes are based on obsolete BTX form factors. I suggest you abandon upgrading the case and instead buy a bare PC case. The most common size used is Mid-Tower, however if you prefer small sizes there are Mini-Tower and Mini-ITX sizes.

    Mini-Tower
    http://www.newegg.com/Product/Product.aspx?Item=N82E16811147159
  3. Calvin7 said:
    Mini Tower (MT, Small MT) or Slim Desktop (Small Form Factor).

    Both sizes are based on obsolete BTX form factors. I suggest you abandon upgrading the case and instead buy a bare PC case. The most common size used is Mid-Tower, however if you prefer small sizes there are Mini-Tower and Mini-ITX sizes.

    Mini-Tower
    http://www.newegg.com/Product/Product.aspx?Item=N82E16811147159


    BTX Obsolete How?http://valid.x86.fr/l2j5p1
    Click on the image for some ATX-BTX perspective.
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