X7815 bios problem

[Harun]

The F2 bios option is gone 😞 i cant reach the bios settings anymore since i replaced my harddrive with an ssd. I want to install windows 10 on the ssd but therefore i must boot from the ssd and set it up in the bios. I replaced old harddrive again to get it work again but it wont boot from the old drive. On startup i get following message: Realtek PCIe GBE family controller series V2.35 (06/14/10)
pxe-e61: media test failure check cable
PXE-M0F:Exiting PXE ROM.
Reboot and select proper boot device or insert boot media in selected boot device and press a key. It sounds like its trying to boot from a network.

Now im stuck with it and dont know what to do. Please help me....

[Bodgekin]

Hi @Harun, 

Sounds like the UEFI does not find any bootable device and because of this tries to boot from a network. Entering the UEFI with F2 should work though. 

That you can't boot from the SSD before installing Windows is normal though, since there is nothing on it to boot yet. Have you tried booting from a Windows 10 installation USB stick or DVD?