Computer boot self-check takes too long and displays DHCP... /.

RT, my computer was sent to the repair site for repair for two weeks due to motherboard problems. After I got it back, the old problem was solved, and the new problem appeared again. When I started the self-check, there was another interface that I had never seen before. The following words were displayed:

Intel undi PXE-2.0 (build 0.82)
Copyright (c) 1997-2000 Intel Corporation
For RealTek rtl8139 (A/B/C)/rtl8130 PCI Fast Ethernet controller v2.11 001205
Client Mac ADDR: xx guid: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF
DHCP ..

Then it will be stuck in DHCP... for a long time.

When I encountered this problem, my first thought was: I changed a poor motherboard, right? However, if you check DHCP, you will find that it is used to automatically allocate IP addresses in the LAN and will be used for guidance through the network adapter. Once you know this, you can observe the BIOS settings and find that there is an option: internal network adapter boot <enabled> (internal network adapter boot is enabled ), at the same time, we found that the BIOS boot sequence was the first in the Network book!

In this way, the problem is very clear, maybe the engineer of the repair station needs to perform some guidance or activation through the network, so the network adapter guide is placed first in the BIOS, I forgot to change it after I used it. After you set the internal network adapter boot to <disabled> and adjust the BIOS startup sequence, restart the system. The interface described at the beginning does not appear again, and the system starts up in half a minute.

As a computer hardware, I would like to record my own exploration process.

P.s.: the above method is only applicable to HP computers. The machine options of other brands should be slightly different, but the principle should be the same.

P.s. 2: Ask the technical Emperor to solve the problem: From "Starting Windows" to "welcome", how does one break the black screen for a long time during interface switching?