[SOLVED] What are these in the red circles ?

[Lyzbeat]

I was about to repaste my laptop because it's overheating up to 97 degree celcius. After I open the case and the heatsink, I found out that, under the heatsink, it not only contains both CPU and GPU, but also other stuff (which I marked them with red circle).

My question is, what is that? what is it for? What is that gooey stuff that lays over it (its color looks a bit different from thermal paste on the CPU and GPU)? Can I put normal thermal paste on it to reduce temp? If no, is there some kind of other solution to even reduce the temp? The laptop is Acer Nitro 5 AN515 with AMD Ryzen 5.

Thank you.

 

[Roland Of Gilead]

Hey there,

It looks like from this video : Acer Nitro 5 Gaming Laptop Thermal Repaste Using Kryonaut Thermal Grizzly - YouTube it looks as if they are the GPU mem chips.

It's possible the paste use on those chips is of a lesser quality than that of the CPU/GPU. It would be worth repasting them too. I don't see why you couldn't use the same paste as CPU/GPU. But, I could be wrong on that.

 

[Lyzbeat]

Hey there,

It looks like from this video : Acer Nitro 5 Gaming Laptop Thermal Repaste Using Kryonaut Thermal Grizzly - YouTube it looks as if they are the GPU mem chips.

It's possible the paste use on those chips is of a lesser quality than that of the CPU/GPU. It would be worth repasting them too. I don't see why you couldn't use the same paste as CPU/GPU. But, I could be wrong on that.

Whoops. I forgot to mention that the picture is not mine. However, they are very similar. Anyway, thank you for your opinion.

 

[Eximo]

Yes, long narrow package is an Intel CPU package.

Square one is the GPU and the surrounding components are the GPU memory.

The thermal pad near the square package is for the GPU power supply (VRM). And there is a single VRM over on the corner for the GPU memory.
CPU power supply is the 4 small VRM chips next to the 5 gray blocks in a line(inductors)

You can see for the GPU they also have little pads on the VRM chips.

I don't see the system chipset in the picture, but these days they don't often get direct cooling.

 

[Karadjgne]

Pastes often differ because of differing properties. Ram/VRM can and do often sit in the 80°-105° range, so need a paste that'll handle those temps consistently without thinning out and bleeding off. Cpus and gpus aren't designed for that kind of long term abuse, tending to stay in the 70°-90° range, but have to operate sufficiently under slightly higher pressure from hold-downs and thinner applications.

There is no 'all-in-one' kinda paste, Noctua for instance works great on the metal IHS of cpus, but isn't recommended for gpus or direct-die applications. It tends to thin out and bleed off the glassy-slick silicon surfaces.

So the white goop on the outer chips being different to the gray goop on the cpu/gpu is normal, doesn't mean it's inferior or superior, just different application.