sorry for incomplette info so all again
INTEL Q6600 +ORIGINAL HEATSINK
MB- ASUS P5BSE
GPU- NVIDIA 8400GS
PSU- EZCOOL 550W
1 GB DDR2
RAM
WINXP
BOX HAS BIG FAN ON BACK AND SEPARATE AIR INTAKE WITH SOME TUBE ON SIDE ABOVE
CPU
CPU HEAT IS NOT OVER 45CELSIUS