X570 phantom gaming-ITX/TB3 5xxxG Support

Here are some instructions for updating your BIOS to support the 5000G series CPUs
without needing a Matisse CPU to perform the update. Please bare in mind this is
a workaround to help those of you who don't have access to a Matisse CPU to perform
the update. As with any end user level BIOS workaround/fix, do this at your own
risk.

To minimize the risk of a bad flash be sure to clear CMOS with the clear CMOS
jumper or by removing the battery with the power disconnected for 10mins. Once
clear, boot into the BIOS and load BIOS defaults.

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First, download the following PDF and follow the instructions:
https://download.asrock.com/TSD/Ryzen5000/X570%20Phantom%20Gaming-ITXTB3.pdf



The first link, provides a tool to format a USB stick, and enabling it to run the EFI Shell



The second download, contains the necessary files, and also includes BIOS release 2.60



Now a 5900 CPU (Vermeer) will work, but a 5000 Series Cezanne (5700G) requires at least BIOS 3.00, and will still not work

https://asrock.com/mb/AMD/X570%20Phantom%20Gaming-ITXTB3/index.asp#CPU

The solution is download the latest BIOs (currently 3.20)

Extract it onto the USB stick, and change the NSH file, which is basically a batch file, for a EFI shell command prompt



This is the content of the original BIOSUPDATE.nsh file:

echo -off B16 if %lasterror% == 0 then echo Update BIOS for Picasso and Pinnacle. AfuEfix64 X57TB3_2.60 /p /b /n /k /l /x /ATR /CMD:{TOP16M} /RLC:F AfuEfix64 X57TB3_2.60 /p /b /n /k /l /x /CMD:{BOTTOM16M} /RLC:F else echo Please use Instant Flash to update BIOS. Endif

And this is what it should be:

echo -off B16 if %lasterror% == 0 then echo Update BIOS for Picasso and Pinnacle. AfuEfix64 X57TB3_3.20 /p /b /n /k /l /x /ATR /CMD:{TOP16M} /RLC:F AfuEfix64 X57TB3_3.20 /p /b /n /k /l /x /CMD:{BOTTOM16M} /RLC:F else echo Please use Instant Flash to update BIOS. endif

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Once this is done the Cezanne (5000g) CPU will now work. As always with any BIOS
flash there is the risk of a bad flash. If this workaround fails you will need
to RMA the board to have the BIOS reflashed by ASRock. It is possible to recover
the system with an external flasher but this is not something for the inexperienced.

Ref. X570 Phantom Gaming 4 BIOS
https://www.asrock.com/MB/AMD/X570%20Phantom%20Gaming%204/index.asp#BIOS

I am in a similar situation... 3200G/X570-PG4 > 5700G.
The Picasso/3200G BIOSUPDATE.nsh is written for BIOS-3.20, where 5000G support starts not until 3.60.
Accordingly, I could update with a Picasso/3200G without a 'required' Matisse/Renoir/Vermeer?.

Parallel to Xaltar's solution/script, my BIOSUPDATE.nsh edit for the upper/lower string is as follows (using the latest BIOS-4.20)?
AfuEfix64 X570PG44.20 /p /b /n /k /l /x /ATR /CMD:{TOP16M} /RLC:F
AfuEfix64 X570PG44.20 /p /b /n /k /l /x /CMD:{BOTTOM16M} /RLC:F

Laura Fridley wrote: I recently put together a new build using the X570 Phantom Gaming ITX motherboard paired with a Ryzen 5 5600G CPU, which is supposed to be supported. However, the system turns on, everything powers up, but no post. Then after about 30 seconds it resets. There is apparently no flash bios functionality with this board. The rest of the system is two 8 g sticks of t-force dram; corsair AIO, Corsair 1t m.2, a Samsung 512g SATA, and a Corsair SF600 psu. What do I need to do to get this machine to post?

if it resets, then probably memory doesnt train, first post might take longer time, let it reboot few times on its own
if nothing happens after 5min, then try only one stick in A1 slot

The links on the guide are dead (they direct to a desktop wtf??)

Please help, I'm stuck and can't use my 5800x3d on x570 phantom gaming itx tb3