Upgrading cpu from i3-4130 to i5-4460 which was given to me by some one selling it long time ago. PC was last time working with the i3 also long time ago. I made the mistake of not testing pc before cpu swap. After switching to i5, no post, removing all memory, no beep either. No funny diagnostic led, no high cpu fan noise. By all it looks pc appears to be “working” except no video. I did not even bother w a video card to test video port or monitor. I know pc is not working now. Replaced cmos battery and clear CMOs settings by jumper x2. No change.