Firmware changes
Now depending on your computer motherboard make sure of:
For Desktops:
- XHCI Handoff: Enabled (if applicable, some may not have this option)
- OS Type: Other (if applicable)
- Secure Boot: Disabled (refer to google or your motherboard's manual on how to disable it)
- Legacy/CSM support: Disabled [if you see a garbled screen, enable this]
- If you have an Nvidia/AMD GPU:
- NO DISPLAY is connected to the motherboard's DP/HDMI/VGA/DVI ports
- under System Agent (SA) [or some other menu], Graphics Settings, Main Display: PEG or PCIE
- Disable anything like: Hybrid Graphics, Dual Graphics, DVMT size ... that are related to Intel GPU
- If you have Intel GPU:
- make sure your DVMT pre-alloc (not to be confused with DVMT size), is set to 64MB (or higher, 64 is enough), DMVT size/apertures/whatever, to the max.
For laptops:
- make sure you have Secure Boot Disabled
- TMP/Security Chips/Security modules Disabled (if possible, it may be enabled later on)
- DVMT-prealloc to 64MB (if possible, not to be confused with DVMT size/aperture/whatever, however it may be seen as Graphics Memory)
- move from RAID/IDE to AHCI (if applicable)
- Disable the external GPU (if possible)
- Enable USB Legacy support (on some cases)
- Disable fast boot
- Disable LAN/WLAN/WWAN boot/wake
- Disable USB wake