Why is my pc not posting when ethernet cable is in?
So out of nowhere after shutting down my pc I go to turn it back on. It turned on fine but the ethernet port wouldn't work so I couldnt connect to the internet. So I Go to shut it back off and the pc stays on wont shut off in shut down and sleep mode. Ethernet lights come on but now pc wont post. Everything turns on but no post. So i keep turning it on and off and on and off and powering it on by flicking the psu switch and jumping the pins bc i dont have a power button and eventually it'll post but back to square one because the lan doesnt work. Its either the lan port turns orange and no post or post with no internet. Latest bios btw and idk what to do
Edit: I put the POWER button on but no difference i have to keep turning it on and off until it post and it only posts when all the fans and everything gets super loud and it seems like its only from not having the ethernet cable in. If the fans arent super loud its not posting.. Also now I have this windows boot manager 0xc00000f code occasionally saying windows failed to start and to insert my windows installation media to repair my computer. I also left it running for a half hour and it just shuts off when left on did it a couple times so far.
Mobo asus q87me bought used off ebay worked for a month no issues except today
CPU i5 4570
16gb ddr3 ram