This is the most complete guide how to change thermal paste on this Lenovo Legion 5 laptop. And that's the first time I see that actually someone is using some other alternative thermal pads not the regular solid thermal pads. Thanks for sharing this!
Thank you for giving dimensions for the cpu and GPU chips, I've got similar ones, this is absolutely necessary for me when I will order this thermal pad.😎
Awesome results! Laird is the way to go. I find liquid thermal pads give way better results than the regular solid silicone thermal pads but not many people actually showed that they're using them 😞 thumbs up for sharing something new🎉
That's interesting. I've never seen anyone using liquid thermal pads instead of regular ones. Seems like a really good solution! How often do you need to change them?
Every time you change thermal interface, you need to replace thermal pads. You need to watch the temperature, if the temperature starts to rise above 95C during extensive tasks, you should start looking to a refresh.
I have the same Lenovo Legion 5-15ACH6H RTX 3070 and multiple times I opened the back case, cleaned the fans and thermal paste and I put new Arctic Mx4 thermal paste and I noticed slight decrease in cpu temperature but my NVidia gpu temp spiked. My laptop now is just sitting in the corner in its own protective sleeve. I built two desktop gaming pcs one AMD Ryzen 9 5900x and the other Intel i7-14700KF with both AIO CPU liquid cooler. Definitely worth it. I am not gaming on laptops anymore.
Hi, Arctic MX-4 doesn't work good on this laptop because it's too liquid and because there are only 3 points of attachment of the cooling system around CPU and GPU chips which don't allow for a solid pressure like on desktop PCs where there are 4 points of attachment, therefore you need something less liquid like Honeywell PTM thermal pad. It's an absolute winner. I don't think you can achieve any better results than with phase-change thermal interface. Maybe liquid metal, but don't want to try it.
Damn brother, that's a deep dive yo. I'm feelin it. Lucky for me, my Legion looks good inside and gets pretty decent thermals, especially when combined with my IETS thermal stand. Excellent video.
@PulsarTECH I know Lenovo uses Honeywell thermal compound, but I think if you use Arctic MX6 or grizzly paste you would have had even better temperatures
@@bizbarley74 not sure about grizzly but with Arctic your temperatures will go up even higher because it's too liquid and there's not a good press from the cooling system because of lack of screws (only 3 points for CPU and GPU.)
Good to see you change from ptm paste to pad, I think if you need clean the fan more often , the liquid thermal pad is not good , which is more painful to clean off. I recommend you to use thermal putty like cxh1300 for drier pad, still good for apply and easily for clean off and can be re-applied
Have the exact laptop model and just bought the said pads. Brilliant instructions! I suppose you're running on performance mode though how's the temp for other power modes (quiet and balanced)? Planning to limit my temp as much as possible for longevity :)
Hi, thanks for your feedback. The tests in the video were all done in balanced mode. But it also performs great in performance mode as well. I keep it in balanced all the time as it has plenty of power to do everything I need.
If I am not wrong, lenovo uses thermal pad (or thermal paste) from honeywell right? I am planning to buy legion 7 9th gen which uses 14900hx but it is said that they are uses liquid metal, is it correct? If yes, maybe I will changet it as soon as possible using the ptm since it is safer that liquid metal for using in laptop
Hi, I’ve heard that Lenovo uses phase-change material in their laptops, but I'm not sure about the 14900HX. It sounds like it would require liquid metal. I would definitely not recommend changing it, as long as it’s applied correctly, since it is very effective and doesn't need to be replaced.
yeah , use the honeywell ptm 7950 this is official legion series thermal pad , yeah before apply pad freeze it for 30min , and u dont need to heat up pad , cpu running will melt it
I just tried to repaste my 2020 Legion 5 with thermal pad today and somehow my rig is getting hotter. Idk what could’ve went wrong. Im using the same honeywell ptm thermal pad. I forgot to benchmark the before 😭 but now it runs games pretty well and doesn’t throttle and stutters like it used to. Should i redo the whole repaste?
Hi, what temperatures are you getting? Have you also replaced thermal pads for the memory chips etc.? If you've used solid pads and not liquid, they might be too firm for the cooling system to squeeze them to proper size thus leaving a larger gap between the CPU and GPU chip and the cooling system therefore there ain't a good heat transfer from the chips. That's why I have opted for liquid thermal pads instead.
should try thermal grizzly kryonaut it will give you better results the paste isn't supposed to turn solid unless it has been overly heat saturated and dried out turning solid means its time to replace it. its supposed to thicken like a glue then loosen under heat.
I love these really uninformed comments. Kryonaut will not outperform PTM7950. Before you reply quickly to this, know I pioneered PTM7950 before it was out in the market, think the original source of PTM. I have personally tested both, there is no thermal paste I haven't tested.
That's an excellent suggestion, I was gonna try a similar paste from Zezzio that has even a slightly higher thermal conductivity than Kryonaut but I'm really happy with these results, the temps are really down now even during intensive usage. Do you have the same laptop? What temps and thermal interface do you have?
@@PulsarTECH I don't have the same laptop mines older and smells like it wants to catch on fire everytime its turned on 🤣 But I use kyronaut for repasting and it was on avg 4-5c cooler than say arctic silver on my 3700x desktop system. laptops in general will perform better being repasted right after getting them because the factory paste typically is of poorer quality. I have done this on 2 generations of XPS because they were thermal throttling just browsing the internet due to the horrible cooling design of the XPS lineup of throw super powerful hardware in small form factors and never change the cooling solution.
@@themangobui1474 thanks for the update. I haven't tried kryonaut myself but definitely happy with current setup, today I have tested it in another super extensive video render in performance mode where the CPU power was 65-70W all the time and the max temp went up to 95C. Fantastic!
It's not useless because it's working great as you can tell from the test results. Do you have a similar laptop? Do you use liquid metal on it and what temps do you get under an intensive use?
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This is the most complete guide how to change thermal paste on this Lenovo Legion 5 laptop. And that's the first time I see that actually someone is using some other alternative thermal pads not the regular solid thermal pads. Thanks for sharing this!
You bet, let me know how it goes!
Thank you for giving dimensions for the cpu and GPU chips, I've got similar ones, this is absolutely necessary for me when I will order this thermal pad.😎
True, that's so helpful!
Glad you found it helpful!
Awesome results! Laird is the way to go. I find liquid thermal pads give way better results than the regular solid silicone thermal pads but not many people actually showed that they're using them 😞 thumbs up for sharing something new🎉
Great point!
Excellent, my Lenovo needs some maintenance as well. I'll keep it in mind next time I need replace them paste.
You bet! I hope the video helps you with your thermal paste replacement.
That's interesting. I've never seen anyone using liquid thermal pads instead of regular ones. Seems like a really good solution! How often do you need to change them?
Every time you change thermal interface, you need to replace thermal pads. You need to watch the temperature, if the temperature starts to rise above 95C during extensive tasks, you should start looking to a refresh.
I have the same Lenovo Legion 5-15ACH6H RTX 3070 and multiple times I opened the back case, cleaned the fans and thermal paste and I put new Arctic Mx4 thermal paste and I noticed slight decrease in cpu temperature but my NVidia gpu temp spiked. My laptop now is just sitting in the corner in its own protective sleeve. I built two desktop gaming pcs one AMD Ryzen 9 5900x and the other Intel i7-14700KF with both AIO CPU liquid cooler. Definitely worth it. I am not gaming on laptops anymore.
Hi, Arctic MX-4 doesn't work good on this laptop because it's too liquid and because there are only 3 points of attachment of the cooling system around CPU and GPU chips which don't allow for a solid pressure like on desktop PCs where there are 4 points of attachment, therefore you need something less liquid like Honeywell PTM thermal pad. It's an absolute winner. I don't think you can achieve any better results than with phase-change thermal interface. Maybe liquid metal, but don't want to try it.
@@PulsarTECH Yes thank you for the advice. I will take it into consideration.
Damn brother, that's a deep dive yo. I'm feelin it. Lucky for me, my Legion looks good inside and gets pretty decent thermals, especially when combined with my IETS thermal stand. Excellent video.
Thanks for watching and for the comment! I'm glad you found it helpful!
@PulsarTECH I know Lenovo uses Honeywell thermal compound, but I think if you use Arctic MX6 or grizzly paste you would have had even better temperatures
@@bizbarley74 not sure about grizzly but with Arctic your temperatures will go up even higher because it's too liquid and there's not a good press from the cooling system because of lack of screws (only 3 points for CPU and GPU.)
@@PulsarTECH Interesting. I'm a desktop builder, laptops are outside my realm.
@@bizbarley74 yea, desktops are whole different story.
Great, thanks, very interesting!
Glad you liked it!
Well done, buddy 👍 What's the temperature operating range for the computer?
Usually when idling it's around 40C and during heavy usage it's around 90C
Good to see you change from ptm paste to pad, I think if you need clean the fan more often , the liquid thermal pad is not good , which is more painful to clean off. I recommend you to use thermal putty like cxh1300 for drier pad, still good for apply and easily for clean off and can be re-applied
Thanks for the recommendation! I'll look into that thermal putty!
Have the exact laptop model and just bought the said pads. Brilliant instructions! I suppose you're running on performance mode though how's the temp for other power modes (quiet and balanced)? Planning to limit my temp as much as possible for longevity :)
Hi, thanks for your feedback. The tests in the video were all done in balanced mode. But it also performs great in performance mode as well. I keep it in balanced all the time as it has plenty of power to do everything I need.
If I am not wrong, lenovo uses thermal pad (or thermal paste) from honeywell right?
I am planning to buy legion 7 9th gen which uses 14900hx but it is said that they are uses liquid metal, is it correct?
If yes, maybe I will changet it as soon as possible using the ptm since it is safer that liquid metal for using in laptop
Hi, I’ve heard that Lenovo uses phase-change material in their laptops, but I'm not sure about the 14900HX. It sounds like it would require liquid metal. I would definitely not recommend changing it, as long as it’s applied correctly, since it is very effective and doesn't need to be replaced.
yeah , use the honeywell ptm 7950 this is official legion series thermal pad , yeah before apply pad freeze it for 30min , and u dont need to heat up pad , cpu running will melt it
Thanks for the tip! I'll definitely look into that.
Why freeze it? It is phase change material. It will liquify regardless.
@@randyedelen5770 it makes the application easier (especially the peeling off of the protective film)...
I just tried to repaste my 2020 Legion 5 with thermal pad today and somehow my rig is getting hotter. Idk what could’ve went wrong. Im using the same honeywell ptm thermal pad. I forgot to benchmark the before 😭 but now it runs games pretty well and doesn’t throttle and stutters like it used to. Should i redo the whole repaste?
Hi, what temperatures are you getting? Have you also replaced thermal pads for the memory chips etc.? If you've used solid pads and not liquid, they might be too firm for the cooling system to squeeze them to proper size thus leaving a larger gap between the CPU and GPU chip and the cooling system therefore there ain't a good heat transfer from the chips. That's why I have opted for liquid thermal pads instead.
should try thermal grizzly kryonaut it will give you better results the paste isn't supposed to turn solid unless it has been overly heat saturated and dried out turning solid means its time to replace it. its supposed to thicken like a glue then loosen under heat.
I love these really uninformed comments. Kryonaut will not outperform PTM7950. Before you reply quickly to this, know I pioneered PTM7950 before it was out in the market, think the original source of PTM. I have personally tested both, there is no thermal paste I haven't tested.
That's an excellent suggestion, I was gonna try a similar paste from Zezzio that has even a slightly higher thermal conductivity than Kryonaut but I'm really happy with these results, the temps are really down now even during intensive usage. Do you have the same laptop? What temps and thermal interface do you have?
@@PulsarTECH I don't have the same laptop mines older and smells like it wants to catch on fire everytime its turned on 🤣 But I use kyronaut for repasting and it was on avg 4-5c cooler than say arctic silver on my 3700x desktop system. laptops in general will perform better being repasted right after getting them because the factory paste typically is of poorer quality. I have done this on 2 generations of XPS because they were thermal throttling just browsing the internet due to the horrible cooling design of the XPS lineup of throw super powerful hardware in small form factors and never change the cooling solution.
the ptm7950 is way better than kryonaut. I've tested it myself.
@@themangobui1474 thanks for the update. I haven't tried kryonaut myself but definitely happy with current setup, today I have tested it in another super extensive video render in performance mode where the CPU power was 65-70W all the time and the max temp went up to 95C. Fantastic!
Only metal for laptops. Everything else is useless
It's not useless because it's working great as you can tell from the test results. Do you have a similar laptop? Do you use liquid metal on it and what temps do you get under an intensive use?
if you want to fry your laptop then lm is indeed better than the others.