My custom M4800

[MELOCODI]

https://github.com/xCuri0/ReBARUEFI

 

Take a look here, but here is my word of advice, from my experience of course - this is a very nerve-wracking procedure, going back through my thread you can see that I made an external door entrance to access (dremel + metal file + velcro) BIOS chips using CH341A + clip, I probably flashed the BIOS around 80 times on my machine, it is very messy.

 

 

I will maybe try coreboot out once again next time, just to see a clearer picture, but it won't be daily driver worthy (coreboot repo for m4800&m6800 lacks audio fixes, no battery communication and lots of other things).

[SuperMG]

Hello, Cicichen made a 3 heatpipes M4800 heatsink for the newer RTX cards... How is that possible? By cutting the fan's plastic casing.

 

This would definitely handle 120W easily.

[MELOCODI]

1 hour ago, SuperMG said:

Hello, Cicichen made a 3 heatpipes M4800 heatsink for the newer RTX cards... How is that possible? By cutting the fan's plastic casing.

 

This would definitely handle 120W easily.

Interesting, show some pictures please

[SuperMG]

Needs to add the "spiky" dissipation plate on top of the heatsink and it'll be perfect. I don't see any adjustments with the RTX inductors, maybe he didn't do that yet.

[SuperMG]

On 4/24/2026 at 12:15 PM, MELOCODI said:

Interesting, show some pictures please

He updated the design again, he did every improvements. It costs 135USD to purchase.

 

The heatsink made the GPU lost like more than 20C degrees by going from 2 to 3 heatpipes with a 55W TDP GPU and it's easily compatible with 120W with adapted adjustments. 3 heatpipes is what a 110-120W GPU uses normally. (Can depend on the core dimensions as well)