Just picked one up and there is no display output from the IGPU via the HDMI on the gene 2, select CPU GPU as the main display and it just reverts back to auto and the dedicated GPU I have in after reboot, is the IGPU faulty?.
I can't overclock it, it displays the OC settings in the bios but it's all at default in windows.
Mobo is Asus Z97 gene 2.
Can you try a new HDMI cable?
Also, I would recommend updating the BIOS to the latest version with your motherboard manufacturer.
If you are able to access Windows, please run the Intel® Processor Diagnostic Tool, you can download it at:
This diagnose verifies the functionality of the processor, verifies processor frequency, tests specific processor features and it does a stress test on the processor, if your processor is defective the test will not pass.