Need help with Ptm7950 vs Noctua nt-h2 for Lenovo legion 5 gaming laptop

[Mayur G A]

Hello everyone,

I am looking for some advice on which among the two thermal interface materials are better for my laptop.

The specs are Ryzen 7 with Rtx 3060 130W.

I had purchased this in 2021 and now I am using with a 1440p 165hz LG monitor as a display with a cooling pad.

Since it has been 3 years I thought it might be time for a thermal paste change also since I started using the 1440p screen the laptop is running at 80-87C depending on the weather in India.

This is my first time trying to repaste a laptop. So should I go forward with the repaste or am I just being paranoid that my hardware may fail.

If I should go for the repaste is Noctua better or Ptm7950? I have seen linus's video and the availability of the Ptm7950 in store but noctua is readily available also the only Ptm7950 available in India are:

GPU Thermal Pad, Corn Phase Change, PTM7950 High Conductive Silicone Grease 8.5W/mK CPU Thermal Paste for M.2 SSD RAM Processor GPU CPU PS5 (80 * 40mm) https://amzn.in/d/1iPN4j2

PTM7950 Thermal Pad Phase Change Heatsink 80x80x0.2mm 8.5W/mK Thermal Conductive for Heatsink PS5 Steam Deck CPU GPU SSD Silicone Grease Thermal Pad https://amzn.in/d/3rckyL7

 

And I don't know I should trust the above both of them or not. But also trying to import Ptm7950 from LTT store will be pricy for someone living in India.

[Levent]

Direct die = PTM7590 or liquid metal otherwise you will have to keep on replacing thermal paste every 6 months. Also both of those Amazon link is a major rip offs.

[Poinkachu]

18 minutes ago, Mayur G A said:

Hello everyone,

I am looking for some advice on which among the two thermal interface materials are better for my laptop.

The specs are Ryzen 7 with Rtx 3060 130W.

I had purchased this in 2021 and now I am using with a 1440p 165hz LG monitor as a display with a cooling pad.

Since it has been 3 years I thought it might be time for a thermal paste change also since I started using the 1440p screen the laptop is running at 80-87C depending on the weather in India.

This is my first time trying to repaste a laptop. So should I go forward with the repaste or am I just being paranoid that my hardware may fail.

If I should go for the repaste is Noctua better or Ptm7950? I have seen linus's video and the availability of the Ptm7950 in store but noctua is readily available also the only Ptm7950 available in India are:

GPU Thermal Pad, Corn Phase Change, PTM7950 High Conductive Silicone Grease 8.5W/mK CPU Thermal Paste for M.2 SSD RAM Processor GPU CPU PS5 (80 * 40mm) https://amzn.in/d/1iPN4j2

PTM7950 Thermal Pad Phase Change Heatsink 80x80x0.2mm 8.5W/mK Thermal Conductive for Heatsink PS5 Steam Deck CPU GPU SSD Silicone Grease Thermal Pad https://amzn.in/d/3rckyL7

 

And I don't know I should trust the above both of them or not. But also trying to import Ptm7950 from LTT store will be pricy for someone living in India.

IIRC I read somewhere that legion series uses PTM7950 PTM from the factory.

Probably was just a reddit post though

 

edit : from reddit post

https://old.reddit.com/r/LenovoLegion/comments/tfxomi/lenovos_stock_paste_is_actually_ptm7958_a_custom/

 

About whether or not to buy from those links or aliexpress link or w/e, all I know is this :

1. The truly legit one usually gonna cost something

2. The cheaper one is kinda a gamble

 

As for temperature, tried doing a deep clean already ?

Though if your ambient temp is really high, I don't think even a new paste /TPM will help you that much.

Edited May 7 by Poinkachu

[RevGAM]

4 hours ago, Mayur G A said:

Hello everyone,

I am looking for some advice on which among the two thermal interface materials are better for my laptop.

The specs are Ryzen 7 with Rtx 3060 130W.

I had purchased this in 2021 and now I am using with a 1440p 165hz LG monitor as a display with a cooling pad.

Since it has been 3 years I thought it might be time for a thermal paste change also since I started using the 1440p screen the laptop is running at 80-87C depending on the weather in India.

This is my first time trying to repaste a laptop. So should I go forward with the repaste or am I just being paranoid that my hardware may fail.

If I should go for the repaste is Noctua better or Ptm7950? I have seen linus's video and the availability of the Ptm7950 in store but noctua is readily available also the only Ptm7950 available in India are:

GPU Thermal Pad, Corn Phase Change, PTM7950 High Conductive Silicone Grease 8.5W/mK CPU Thermal Paste for M.2 SSD RAM Processor GPU CPU PS5 (80 * 40mm) https://amzn.in/d/1iPN4j2

PTM7950 Thermal Pad Phase Change Heatsink 80x80x0.2mm 8.5W/mK Thermal Conductive for Heatsink PS5 Steam Deck CPU GPU SSD Silicone Grease Thermal Pad https://amzn.in/d/3rckyL7

 

And I don't know I should trust the above both of them or not. But also trying to import Ptm7950 from LTT store will be pricy for someone living in India.

Honeywell PTM7950. The lowest legit price I know of is through LTT.

 

Oh, you're in India. I was rushed and couldn't stop to read your message fully. 

 

You would really need to know if your laptop uses paste, pads or both. If just pads, then you'll need to know the thickness. 

[Mayur G A]

22 hours ago, Poinkachu said:

IIRC I read somewhere that legion series uses PTM7950 PTM from the factory.

Probably was just a reddit post though

 

edit : from reddit post

https://old.reddit.com/r/LenovoLegion/comments/tfxomi/lenovos_stock_paste_is_actually_ptm7958_a_custom/

 

About whether or not to buy from those links or aliexpress link or w/e, all I know is this :

1. The truly legit one usually gonna cost something

2. The cheaper one is kinda a gamble

 

As for temperature, tried doing a deep clean already ?

Though if your ambient temp is really high, I don't think even a new paste /TPM will help you that much.

Yeah the ambient temperatures are currently high in India.

[Mayur G A]

19 hours ago, RevGAM said:

Honeywell PTM7950. The lowest legit price I know of is through LTT.

 

Oh, you're in India. I was rushed and couldn't stop to read your message fully. 

 

You would really need to know if your laptop uses paste, pads or both. If just pads, then you'll need to know the thickness. 

 

22 hours ago, Poinkachu said:

IIRC I read somewhere that legion series uses PTM7950 PTM from the factory.

Probably was just a reddit post though

 

edit : from reddit post

https://old.reddit.com/r/LenovoLegion/comments/tfxomi/lenovos_stock_paste_is_actually_ptm7958_a_custom/

 

About whether or not to buy from those links or aliexpress link or w/e, all I know is this :

1. The truly legit one usually gonna cost something

2. The cheaper one is kinda a gamble

 

As for temperature, tried doing a deep clean already ?

Though if your ambient temp is really high, I don't think even a new paste /TPM will help you that much.

 

22 hours ago, Levent said:

Direct die = PTM7590 or liquid metal otherwise you will have to keep on replacing thermal paste every 6 months. Also both of those Amazon link is a major rip offs.

Thank you guys for your time.

Before I decide to start any repasting can I get you guy's input on whether I should even repaste it or not? Is 80-87C for a 1440p 165hz monitor screen with laptop screen turned off normal or not for a 3yr old laptop?

[RevGAM]

3 hours ago, Mayur G A said:

 

 

Thank you guys for your time.

Before I decide to start any repasting can I get you guy's input on whether I should even repaste it or not? Is 80-87C for a 1440p 165hz monitor screen with laptop screen turned off normal or not for a 3yr old laptop?

Doing what?

[Poinkachu]

13 hours ago, Mayur G A said:

 

 

Thank you guys for your time.

Before I decide to start any repasting can I get you guy's input on whether I should even repaste it or not? Is 80-87C for a 1440p 165hz monitor screen with laptop screen turned off normal or not for a 3yr old laptop?

As far as my knowledge goes, which is kinda limited actually, TPM lasts for quite long time.

At the very least should be at thermal paste level, so 3 years old should still be fine.

And if those reddit posts are true, then your Legion most likely is using one

 

Whether or not to repaste due to that temp, it depends on :

1. As @RevGAM asked, doing what? (which I assume are done in performance mode [red light on power button])

2. The laptop's own cooling capability

3. Ambient temp

 

Also, as I have asked before,

On 5/7/2024 at 5:38 PM, Poinkachu said:

tried doing a deep clean already ?

Meaning to fully clean the fan, from the inside

Because sometimes, just cleaning the exhaust using brush and blowing air from outside isn't enough

Edited May 8 by Poinkachu

[RevGAM]

1 minute ago, Poinkachu said:

As far as i know, which is kinda limited, TPM lasts for quite long time.

At the very least should be at thermal paste level, so 3 years old should still be fine.

And if those reddit post are true, then your Legion most likely is using one

 

Whether or not to repaste due to that temp, it depends on :

1. As @RevGAM asked, doing what? (which I assume are done in performance mode [red light on power button])

2. The laptop's own cooling capability

3. Ambient temp

 

Also, as I have asked before, have you done a deep fan cleaning ?

Are you aware that your avatar looks like the fiance from "The Haunting of Bly Manor"?

[Poinkachu]

Just now, RevGAM said:

Are you aware that your avatar looks like the fiance from "The Haunting of Bly Manor"?

Nope! never even seen that show.

My avatar is from Sin City movie

[Poinkachu]

@Mayur G A

 

From your brief description, I am guessing your laptop is Legion 5 (2021) 15ACH6H

If that is true, you probably can use this review as somekind of comparison.

 

Keep in mind that the laptop in the review was tested at 21c ambient temp, most likely with the lid of the laptop open.

Also at 1080p, so if you are running yours at 1440p, the laptop gonna have to work harder

 

Edited May 8 by Poinkachu

[RevGAM]

13 minutes ago, Poinkachu said:

Nope! never even seen that show.

My avatar is from Sin City movie

It's a slow-moving drama with ghosts as backdrop. 8 episodes, IIRC, and you have to sit through the first three for no special reason, the next 2-3 for history, before finally getting to the best part, which requires the previous 6 to fully make sense. They took suspense to an excruciating level. I swear I heard Hitchcock swearing!