I have a FUJITSU Siemens Esprimo P5905 case without the original motherboard and PSU.
Is this case compatible with other (non Fujitsu Siemens) micro ATX motherboards and PSU's?


A retailer told me, that this is a BTX case. Looking at the pictures at the manufacturer's website, It rather looks
like an ATX. The manual of the original motherboard (link) also says, it's a micro ATX board.
So I'm a bit confused now, I'm not a hardware expert. I want someone clearly tell me that this is an ATX or BTX case.Its a Micro-ATX case but with a really odd power supply placement. You can install any M-ATX motherboard you like provided have you the proprietary Fujitsu power supply.


BTX opens on the right side, ATX on the left. Micro-ATX has 4 expansion slots, ATX has 6.
ONE of the hallmarks of a BTX motherboard is that its CPU socket is SLANTED at a 45° angle.

What a BTX motherboard looks like. Note that the expansion ports are to the right of the printer ports, USB ports, Ethernet ports, etc. Your motherboard is clearly not BTX.




Usually an ATX case would have the power supply at the top. However, in your funky proprietary case, the power supply is smaller than a typical ATX power supply and is mounted on top of the motherboard.Thanks for the reply. There's some free space in the top left corner of the case. I do not know whether there is some kind of power that fits in there.An ATX power supply might fit there, but evidently your case was DESIGNED to have the power supply in that awkward position and the hard drives mounted vertically in an equally awkward position... I wonder who designed this case...

You would have to find a way to make a hole in the case so you can plug it in....Looks like a horrible case. Is that a fan in the front being blocked by the hard drive? And do you really want to cramp a PSU in there? Where is all the WARM air going to go to?

Spend 30 bucks on a quality Cooler Master case for M-ATX form-factor so you don't bake your hardware...Your Fujitsu
That's not the OP's computer:
http://uk.ts.fujitsu.com/rl/servicesupport/techsupport/ProfessionalPC/ESPRIMO/P/EsprimoP5905.htm 

Sorry, but it does show a mix of ATX & BTX.  The motherboard is a mirror of an ATX, notice how it's mounted on the left side instead of the right.  The case is also a mirror of the ATX case.   Dell has some like this.

The Fujitsu is also a modification of the BTX standard, where the psu is at the bottom.

The first company to implement BTX was Gateway Inc, followed by Dell and MPC.  Future development of BTX retail products by Intel was canceled in September 2006.  Many companies now use proprietary form factors.

Quote from: Computer_Commando on March 08, 2012, 06:22:22 AM

Sorry, but it does show a mix of ATX & BTX.  The motherboard is a mirror of an ATX, notice how it's mounted on the left side instead of the right.
The Fujitsu is also a modification of the BTX standard, where the psu is at the bottom.