INT 13 U - Seagate - ???                                                        
	AX = 5514h
	DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
	CF set on error
	AX = return value (FEBEh,FEBFh,FEDAh,FEDBh)
SeeAlso: AX=5504h,AX=5515h