is it a different situation than the lcd model? there are patches for ram increase and different display that can be applied to the lcd model but you have to disable auto update and manually install patched updates though I'm pretty sure there haven't been any recent ones
this post was submitted on 16 Aug 2025
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No clue. Don't even have a steamdeck myself. I'm sure a similar mod could be done if you have the correct ram chips and tools plus the ability to mod the UEFI.
I mean, cool mod, but is there really that much use for 32GB given the (at this point) rather weak SoC?
I want a steam deck 2 so bad
It depends. The CPU and GPU use the same ram. Increasing the size and swapping to something with higher frequencies and better timings can't hurt it you are playing games that are stressing the limits of the system. You could give the GPU 10 GB of faster RAM which is what likely holds the system back.
So while it breaks updating the UEFI (BIOS technically died years ago) I don't see a huge issue there. I haven't updated the firmware in my X470 MoBo in years. Version 4.80 is on it but version 11 something is available but again if it ain't broke don't fix it comes to mind.
I would imagine there had to be some performance benefits since from my understanding the CPU and GPU use the same memory. If the memory is faster boosting the ram speed and tightening the timing would only increase the benefits. Though I would think that the modders should be able to make it so the UEFI can be flashed still and give the user control of the cpu and gpu frequencies and timings but prevent the OEM UEFI files from being used. Some sort of change in file extension would be simple enough but there I don't really know for sure.
Would love to see some testing though.
You're missing some security updates, it seems.
Release notes for your newer BIOS/UEFI updates:
4.80 -
Improve GPU compatibility for GeForce RTX 40 series.
4.90 -
Enhance S3/S4 mode.
8.01 -
Update AMD AM4 AGESA Combo V2 PI 1.2.0.8
10.01 -
Update AMD AM4 AGESA Combo V2 PI 1.2.0.A
10.08 -
- Update AMD AM4 AGESA Combo V2 PI 1.2.0.B\
- Patch UEFI LogoFail vulnerabilities.
10.11 -
Update AMD AM4 AGESA Combo V2 PI 1.2.0.C
10.31 -
Update AMD AM4 AGESA Combo V2 PI 1.2.0.Cc to patch SMM Lock Bypass security issue.
10.41 -
Update AMD AM4 AGESA Combo V2 PI 1.2.0.E
I think SteamOS does automatic firmware updates so you would have to make sure you don't unexpectedly lock it up
UEFI updates became a lot more relevant with AM4, at least with early Ryzens, FWIW. Though there won't be many big fixes for the Steam Deck anymore, probably. Interesting for sure