My custom M4800

[MELOCODI]

I use PTM 7950 + Upsiren UTP-8 putty on CPU+GPU dies and VRM+VRAM

[SuperMG]

12 minutes ago, MELOCODI said:

Didn't have any results yet, but from what I see - this GPU needs a VBIOS with less max TDP, this goes into a scary territory + some scary coil whine. This is under FurMark 2 VK stress test ≈ 1 minute.

Coil whine = high FPS. Happens on every cards I own.

 

What FPS did you get for average?

 

Isn't the maximum throttle 87C for the core? That's good! Hotspot throttle is 105C I believe. Maybe -10C with a two heatpipes design. Standard heatpipes, not the "big flat" one.

[MELOCODI]

Here is the best picture of the internals I took a while back, maybe that will help, I tried to play around with some heatsink parts to kinda check the fitment, but couldn't figure out how to jam in another heatpipe on the GPU, tolerances are pretty tight... maybe cutting the palmrest plastic is the way? Don't wanna ruin the rigidity

[SuperMG]

1 hour ago, MELOCODI said:

Here is the best picture of the internals I took a while back, maybe that will help, I tried to play around with some heatsink parts to kinda check the fitment, but couldn't figure out how to jam in another heatpipe on the GPU, tolerances are pretty tight... maybe cutting the palmrest plastic is the way? Don't wanna ruin the rigidity

Thank you. Is the Ethernet port in the same height as the GPU heatpipe?

 

Can you overclock to 4GHz all cores using NVRAM edits + sleep bug to unlock the TDP?

[MELOCODI]

47 minutes ago, SuperMG said:

Thank you. Is the Ethernet port in the same height as the GPU heatpipe?

 

Can you overclock to 4GHz all cores using NVRAM edits + sleep bug to unlock the TDP?

I'll check the height. 

 

About an overclock - not sure, I am running (1 core - 4 core ratios) : 43, 42, 40, 39

[SuperMG]

13 minutes ago, MELOCODI said:

I'll check the height. 

 

About an overclock - not sure, I am running (1 core - 4 core ratios) : 43, 42, 40, 39

That sounds like an overclock to me. Chip can handle 43, 41, 41, 40? Single-thread in CPU-Z, it's 420?

[MELOCODI]

1 hour ago, SuperMG said:

Thank you. Is the Ethernet port in the same height as the GPU heatpipe?

Looks like it

[SuperMG]

49 minutes ago, MELOCODI said:

Looks like it

We can run a heatpipe on the ethernet without trimming it, okay.

[panda_zzz]

8 hours ago, SuperMG said:

We can run a heatpipe on the ethernet without trimming it, okay.

There's no place on the copper grid to solder another copper tube - where are you planning to vent the heat, then?

[MELOCODI]

UPDATE 11 - 13#:
now for sure

• Got a much smaller 240W LA240PM180 charger, it is very sleek and light, love it! An old XM3C3 was too big, it loved to crush things in my backpack.
• Swapped a severely degraded i7 4980HQ --> i7 4930MX (Slightly overclocked, but most importantly undervolted, don't wanna mess with the old man)
• NVIDIA RTX 4060 works.. a whole year after I bought it. Countless hours spent on studying DSDT/SSDTs, sketchy Ghidra/IDA Pro patches... just for the main culprit to be... a mutant abomination of a CPU I had...

Spoiler

IT IS PINK!! You see? You can eat it! Hello Kitty donated her marshmallow for this! Instant +9999 FPS boost!!!!

 

Spoiler

• DLSS RAYTRACING HUANG JACKET OVEN (nah, screw him, M4800 doesn't wanna see DLSS 5)
• Custom boot logo (I LOVE Sybreed, I think it really fits this laptop)

Spoiler

Plans:

• Get a lower TDP VBIOS (or MAYBE one with adjustable power limits, if it exists... and not kept locked behind countless "BUY OUR GPU, NO BUY GPU = NO VBIOS FOR YOU" emails. Come on, TechPowerUp VBIOS database doesn't bite.)
• Fix ReBar (i7 4930MX doesn't want to work with my modified BIOS)
• Do something about the SUBSYS ID on the GPU, I want to get rid of the modded drivers once for all, 1028 15CC ain't gonna cut it. I have to investigate this more... if only DSanke was here....
• Do the eDP mod to finally disable iGPU, probably when I get my hands on a better panel, can't afford the panel right now.. Life Is Peachy

[SuperMG]

8 minutes ago, MELOCODI said:

UPDATE 11&12#:
now for sure

• Swapped a severely degraded i7 4980HQ --> i7 4930MX (Slightly overclocked, but most importantly undervolted, don't wanna mess with the old man)
• NVIDIA RTX 4060 works.. a whole year after I bought it. Countless hours spent on studying DSDT/SSDTs, sketchy Ghidra/IDA Pro patches... just for the main culprit to be... a mutant abomination of a CPU I had...

  Reveal hidden contents

IT IS PINK!! You see? You can eat it! Hello Kitty donated her marshmallow for this! Instant +9999 FPS boost!!!!

 

  Hide contents

• DLSS RAYTRACING HUANG JACKET OVEN (nah, screw him, M4800 doesn't wanna see DLSS 5)
• Custom boot logo

  Reveal hidden contents

Plans:

• Get a lower TDP VBIOS (or MAYBE one with adjustable power limits, if it exists... and not kept locked behind countless "BUY OUR GPU, NO BUY GPU = NO VBIOS FOR YOU" emails. Come on, TechPowerUp VBIOS database doesn't bite.)
• Fix ReBar (i7 4930MX doesn't want to work with my modified BIOS)
• Do the eDP mod to finally disable iGPU, probably when I get my hands on a better panel, can't afford the panel right now.. Life Is Peachy

 

You do need a better heatsink, cicichen made the two heatpipes version. He needs to add some "spiky surface area" on the full copper heatsink and it'll be good to go! Could handle 100W.

 

Wait ReBar and 4G decode exist for the M4800? Any BIOS online? The same for M6800? Since they use the same BIOS type.

[MELOCODI]

6 minutes ago, SuperMG said:

You do need a better heatsink, cicichen made the two heatpipes version. He needs to add some "spiky surface area" on the full copper heatsink and it'll be good to go! Could handle 100W.

As I said already - I'll try my best to replicate the design once I get some pictures and information, I've tried to drop in some heatpipes just to see the fitment, but space is kinda restricted there, balls to the wall situation.

 

8 minutes ago, SuperMG said:

Wait ReBar and 4G decode exist for the M4800? Any BIOS online? The same for M6800? Since they use the same BIOS type.

I've used xCuri0's Dxe module and guide from here: https://github.com/xCuri0/ReBarUEFI
It is pretty hit or miss, I have done this mod at least five times until I got it somewhat right... just to see i7 4930MX walk in and reject everything, laptop didn't even try to boot.

Black screen (no backlight too) -> no indicators except for the power button -> pressing the power button results in a fan ramp up and then it shuts down.

This is a pretty standard behavior I noticed when BIOS breaks on this laptop.

[SuperMG]

Here's a preview. The surface just need some dissipations points, adapt the height of the right side inductors and that's it! Compatible heatsink for the 4060, 4070.

[MELOCODI]

7 minutes ago, SuperMG said:

Here's a preview. The surface just need some dissipations points, adapt the height of the right side inductors and that's it! Compatible heatsink for the 4060, 4070.

That's exactly what I wanted when asking cicichen to make me a heatsink.. dang it.. why it didn't come out like this...

[MELOCODI]

This is the one he made for me
 

Spoiler

 

[SuperMG]

13 minutes ago, MELOCODI said:

This is the one he made for me
 

  Hide contents

 

He just took the OEM heatsink and added a full copper plate, that's it. 

 

The newer version, it's a new base, new heatpipes.

 

I just hope he can really add these spiky dissipations points for the surface because that could help a lot!

 

Like this for example:

https://ae01.alicdn.com/kf/S810491978e404e748c165314a164c71f7.jpg