开机时电脑提⽰“pleasepowerdownandconnectthepciepower。。。开机时电脑提⽰“please power down and connect the pcie power cable(s) for this graphics  card”出现了这个问题怎么解决呢，下⾯我们就此问题作出解释与解决⽅案。开机时主机响“please power down and c...