What Kind Of MotherBoard Is In A Dell Otiplex 755 Small Form Factor

What kind of motherboard is in found in an optiplex 755 sff. ATX, Micro ATX etc
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More about kind motherboard dell otiplex 755 small form factor
  1. The dell otiplex use the BTX format, you have to buy the MB from Dell.
  2. It isn't ATX or Micro ATX. It is a custom Dell size.
    The SFF has one PCI and one PCI Express x16 slot.
  3. cin19 said:
    The dell otiplex use the BTX format, you have to buy the MB from Dell.

    so will it fit in a fractal design define r4 case?
  4. Best answer
    No. Here is from wikipedia:
    In the first months of production the ATX and BTX motherboards were so similar that moving a BTX motherboard to an ATX case was possible and vice-versa. This was possible because the first BTX motherboards were ATX motherboards turned upside down, except for the component location that really were BTX positioning.

    Later the BTX form factor had a big change by turning it into a mirror image of the ATX standard. Since the new motherboard design, both standards are incompatible. Basically BTX motherboards are 'leftside-right' compared to ATX and not upside-down as before: i.e. they are mounted on the opposite side of the case. Some computer cases such as the Cooler Master Series (Stackers) were released to support a varying range of motherboard standards such as ATX, BTX, Mini-ATX and so forth, to ease motherboard upgrade without buying a new case; however, all connector and slot standards are identical, including PCI(e) cards, processors, RAM, hard drives, etc.
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