Yeah I checked LTT, it's like 2k for One 60x60mm. Not sure how worth it is.Since AliExpress is banned, eBay.com is your best bet. There are China based sellers who ship for free internationally. It will take 3-4 weeks to arrive and you will likely not need to pay customs on it. Make sure the seller has high ratings though as some sell fake PTM7950 apparently.
Also, LTT Store now stocks PTM7950. So if you know someone coming from US/Canada, this is a trustworthy source for the genuine stuff. They ship internationally too but it would be expensive that way.
I'm not sure if it will give lower temps compared to a good thermal paste let alone liquid metal. It's main USP is that it does not degrade or pump out over time.Not sure how worth it is.
That's nice to hear, my main purpose is to get better thermals from my GPU. My CPU is fine, I notice my GPU is always pinned at 85C(Nvidia's limit), 100C+ hotspot on a decent game. Every forum I looked say this is underspec and the hardware can handle it, which is fine but I'm not getting the best performance as this is the throttle limit. I want it to atleast stabilize at 80C without throtlling. I tried every form of thermal paste. My laptop has Liquid metal stock on the CPU and regular thermal paste on GPU. I tried better thermal paste on GPU to no avail so I wanted to try out PTM before going for Liquid metal on GPU as well which I don't know will work in terms of mounting pressure or whatnot.I'm not sure if it will give lower temps compared to a good thermal paste let alone liquid metal. It's main USP is that it does not degrade or pump out over time.
Usually with gaming laptops I would need to re-paste every 6-12 months as the temps creep up inspite of regular cleaning. But on the two Legions 5 Pro 2021s I have (Which came pre-applied with PTM7950), I've never taken the heatsink off the motherboard. If temps increase, it's always due to the fans/vents getting clogged with dust. After cleaning, the temps go back to how it was on day 1. Amazing stuff!
Yeah that is all fine, I can feel the air coming through the vents pretty good. I feel like the bottleneck is either the thermal transfer from the GPU or this is just the limit of this laptop's design.That is odd. At least GPU temps should be easier to get under control due to larger surface area of the die.
Did you check the gap between the fan and the heatsink fins? It is usually covered with tape or foam to prevent air leaking and force it through the vents. I wanted to confirm this because on some laptops the fan assembly does not need to be separated from the heatsink to re-paste. So fan blades and fins would look clean but there might be dust blocking airflow inside (Like in the attached pic).
My dude, you were on to something. Some weird stuff is going on with the laptop chassis.That is odd. At least GPU temps should be easier to get under control due to larger surface area of the die.
Did you check the gap between the fan and the heatsink fins? It is usually covered with tape or foam to prevent air leaking and force it through the vents. I wanted to confirm this because on some laptops the fan assembly does not need to be separated from the heatsink to re-paste. So fan blades and fins would look clean but there might be dust blocking airflow inside (Like in the attached pic).
Yeah I don't think the intake would be restricted to that extent by the bottom panel.There's no way bottom chassis alone increases temps by so much right?
Yeah I did all that everything looks good. With the bottom panel on, I can feel very less airflow from the vents. With it off, the airflow is high.Yeah I don't think the intake would be restricted to that extent by the bottom panel.
Can you remove both the fans from the heatsink assembly and check once? If possible the cover of the fan assembly as well. You don't need to remove the heatsink from the motherboard unless its getting in the way while removing the fans.
can you let me know once you receive it? I am worried about the packing/customs plus the hot weather. Will order it too if you receive it without issuesOrdered 80x80 mm2 ($19) from ebuy7 (kinda sketchy, but recommend apparently). Planning to use it with my 13700k (temp differential between CPU temp and coolant temp rather high).
Can you link the listing/seller you bought it from? And also, please post before and after temps if you can.Arrived today in anti-static packaging inside a cardboard box, along with applicator and accessories. Customs was 600 odd Rs. for a declared value of 13 usd. No spill or other quality issues, verified the dimensions, it is indeed 8cm square (and not chinese cm), will apply it over the weekend and check back.
@altair21
damn, let me know how's the perf, and was it melted or even soft?Arrived today in anti-static packaging inside a cardboard box, along with applicator and accessories. Customs was 600 odd Rs. for a declared value of 13 usd. No spill or other quality issues, verified the dimensions, it is indeed 8cm square (and not chinese cm), will apply it over the weekend and check back.
@altair21
Then 40x40 makes sense within IndiaYeah I checked LTT, it's like 2k for One 60x60mm. Not sure how worth it is.
No, arrived as a slightly rigid sheet of plastic.damn, let me know how's the perf, and was it melted or even soft?