你會不會bios沒有更新成功?我查了一下,H87M-PLUS這塊版子是有支援i5-4590的。但有備註一段話:*Before using the new Intel 4th Gen Core processors, we suggest that you first download the BIOS updater for new Intel 4th Gen Core Processors and then update the BIOS using this tool. 給你參考www.asus.com/tw/Motherboards/H87MPLUS/HelpDesk_CPU/