I reseated the ram this morning.. Still have the beeping issue.. There are 4 usb plugged in.. When i remove all 4, i get 2 short beep(fast) and 1 normal beep.. When all 4 is connected, i get 4-5 short beep(fast) and 1 normal beep.. i get same 99, A3 error message.. But 2day i once had BSOD...