Aoa mei apna dell optiplex gx520 3Ghz (Pentium D) 1GB Ram VGA 224MB ko apni TCL ki LED sy connect karta hu to Not Support ka message ata jata hai lekin agar system restart kar k pehlay bios mai ja k exit karu to display aa jata hai lekin use karnay py aksar system bilkul hang ho jata hai kya koi madad kar sakta hai ic issue k baray mai?