need heat - this can provide it. The system is nice, and matched the ad exactly.i found out , who ships it matters. if it is amazon watch out for inadequate packing.it should be stiff shaped foam, instead amazon used large stiff  bubble packing.this packing it self became damaged in shipping , allowing damage to several parts.it had damage to the case, p/s fan area, and several hing/pins on the inside leaving metal shrapnel on the mother board.i cleaned the mess up, and tested the unit - every thing worked. BUT i didn't TRUST it. so sent it back. the it folks that supply these units to several sellers are Very good people.they are the ones that pointed out "where it is shipped from MATTERS...."