hi, would just like to inquire; is silverstone ST56F capable of handling 4870GS stablely?

thank you!

i thought he said crossfire?

sometimes u'll have to check if earthing is alrite or not too. normally old extension or expansion sockets / cables will have this problem. check your cpu casing with a test pen, if the led lights up then probly its not earthed correctly or not earthed at all. i used to get bsods because of bad earthing. luckily its just bsods, and all my comp parts are still working fine.

anyway its just my 2 cents.

well its just a standard intel imposed for safety purposes; that no psu should exceed 240VA on one 12V line... but some manufacturers never really follow this standard. some peformance psu still has single rail whereas some go as far and 4 rails or more. i dont think it has anything much to do with stability, but safety. if you want stability, its best for you to just go for good, reliable, peformance psu manufacturers. there're a few out there. dont go for capalang brand psu even tho they claimed to have dual or more rails. most of the time its just another way of marketing scheme to make people believe its better to have more rails.