Network adapter device missing

[loepa]

I'm having a weird issue. 

My PC which use MSI Z77A g43 as motherboard. suddenly doesn't detect my onboard network adapter.

 

1. I've check the bios. and it says the driver is enabled.
2. I've tried to re install the driver. it gives me an error that pretty much says that the device is not found.
3. I've check the device manager and network adapter. the said device is not there.
4. The LED on the LAN port doesn't light up. but the lights on the other end that goes to the switch lights up. (LED light on the pc is not on, but the LED light on the switch does turn on)
5. I've tried restoring it to previous version.

 

Any Idea what should I do before I reformat my PC??

 

Thanks for any help

[zMeul]

you don't need to format

just put a live linux distro on a USB thumb drive and test if the NIC works, if it doesn't it's quite possibly dead

[loepa]

Yeah that's the next thing I'm gonna try.

 

 

If in live linux the nic still doesn't work. then most likely it's dead right?