Contact customer service for RMA because your card is likely dead and is defective. There is a reason why people avoid Palit such as no power vrm cooling, noisy and very fragile fan that is known t break, numerous other issues. Bios updates only go so far, Ask for level 2 or above support if you have to if the customer service representative isn't helpful.
wow thanks for your reply, but you didn't read my posts carefully.
I tested the card on my brother's PC and it works!