Some are, some aren't. Can you compare the back of the case with a standard one? If the case is ok and you just need proc mobo and ram, you could get an amd xp2500+, an epox board and 2 sticks of 256 meg ddr for $300. Unfortuneately the P4 2.4c sells for $171. Does not leave enough for mb and ram. If you need a case and psu as well, add another $50. roughly.