[SOLVED] Repasting a gaming laptop

[peterthedoor]

Hi guys, i have a omen dc1041nl, and even with undervolting and underclocking (-140mV, locked to 3.5 or 3.7 ghz), it does run around 80° - 85° celsius. I know it's kind of normal, but since i plan to keep it as long as i can, i'd like to repaste it and try to make it cooler. The problem is, i don't know what paste to use. Kryonaut would be the best choice, but apparently it dries out at 80°; some say IC diamond is a good option but also it's apparently non existent in italy.
Would using hydronaut be a good idea? Also, how much do i need to do it?
Thanks in advance

 

[Roland Of Gilead]

Hey there,

I've a similar HP Omen (dc1024na). It is tricky to do the repasting. Once you get the back off, you then need to remove a number of screws to dismount the cooling pipes/system. Make sure if you are going to do it, that you keep all screws in a safe and organised space. Once off, you can paste both CPU/GPU. Ideally you need a pea sized blob in centre of chip. When you place the cooling heatsink/cooling pipes, the pressure will spread the paste over the surface area. It will take a few on/off cycles for the paste to finish spreading and set.

In terms of paste, here's a list of suitable ones: 12 Best Thermal Pastes For CPU You Can Buy (2020) | Beebom

I didn't find massive changes in temps after repasting. I'm not sure if that's because the thermal paste already used is of similar quality or that regardless of paste, the cooling system i simply inadequate. In fact, asides from undervolting (mine is -180mv) the best results I've had were with a laptop cooling pad. Which brings temps down a few degrees, but also seems to keep temps at a steady level, rather than fluctuating like crazy. This specially applies to the GPU, which never goes above 69c.

CPU wise, similarly I lock my clock speed so I know what heat (and therefore fan speed) will be like. I have 3 profiles, 3.2ghz, 3.7, and 4.0ghz all core. So I choose what level I need for whatever application I'm using.

If you don't feel comfortable pasting, you could always bring to a local repair store. They might only charge $£€20 or so to do it for you, if you supply the paste you prefer.

 

[peterthedoor]

Which one did you use?
I mostly fear the kryonaut drying out... and some suggest using the hydronaut, but i honestly don't know anything about it

 

[Roland Of Gilead]

I used the Grizzly Kryonaut too.

 

[peterthedoor]

Regarding quantities?
How much is needed for a laptop?

 

[Roland Of Gilead]

Ideally you need a pea sized blob in centre of chip

This would be for both CPU and GPU. When you put the cooling system back in place, the pressure from the unit will spread the paste out evenly over the CPU/GPU. It will take a few on/off cycles for the paste to take correctly. Then you are good to go.