its your power supply... you are going to need way more then 250 watts... I would suggest a 350 watt.
Assuming your case will fit a standard ATX power suppy.... This one would be the perfect application... PSU
98 Corolla LE 1.8L DOHC 1ZZFE
TEIN H.Tech Springs
Tokico HP series Struts
Short ram air intake
Tsudo Axel Back Exhaust
... if a jelly fish stung me.. would you pee on the wound?