On the problem of black screen and blue screen of NF8465M4
NF8465M4:E7-4809V4*4/8G*4/1.2T*3/3008/800W*3, black screen after array card self-test (monitor has signal, but no output), replace motherboard, problem solved. Plug in the flash drive, as shown in the picture
Then install the 2008R2 system and select Legacy USB:SanDisk to start, as shown in the figure
The blue screen in the process of loading the array card driver, as shown in the figure
Solution: change to UEFI boot mode. Since the previous U disk cannot be started with UEFI mode, I will start with CD instead, as shown in the figure.
Install again, no longer blue screen. Then change the UEFI startup to priority in BIOS, and the problem is solved.
PS: the authentic operating system you bought has been activated once and can be activated again (the same machine, the hardware remains the same)
