Is it ok to use Noctua NT-H2 thermal compound?

It's a good paste. You can look at Thermal Grizzly Kryonaut, but it'll be only slightly better, than Noctua.

Eventually all thermal pastes need replacement. Noctua or Grizzly? I don't think it matters If you are doing some heavy OCing, chemical compound of the paste wears off due to heat. So best to replace the thermal paste once every 3 - 4 years (if you are a heavy gamer) or 5 - 6 years (if you are a casual user).

I have not used Noctua product before, but the texture of the thermal paste is important. I don't know how to describe it in words. Try gently rub the paste between your fingers, if the paste feels like milky and watery, and still able to hold together its solid structure, then that is a great quality. If the paste feels like a mud (mixing sand and water) and breaks apart, then that is a poor quality. Because even if you do not use the computer, poor quality thermal paste will become petrified quicker and its thermal conductivity status will not do its job of transferring the heat.

Sye_The-Vie
I have not used Noctua product before, but the texture of the thermal paste is important. I don't know how to describe it in words. Try gently rub the paste between your fingers, if the paste feels milky and watery, but still able to hold together its solid structure, then that is a great quality. If the paste feels like a mud (mixing sand and water) and breaks apart, then that is a poor quality. Because even if you do not use the computer, poor quality thermal paste will become petrified quicker and its thermal conductivity status will not do its job of transferring the heat.

I appreciate you for Great info! I know there's a way to check the good thermal paste, but not the texture. I bought current PC just 3 months ago. But when I check it, thermal paste was not completely spread out. I put a company in charge of assembly, but they didn't do their best. So, I had to reapply the thermal paste at yesterday midnight.

samuel2050
But when I check it, thermal paste was not completely spread out.

I think you didn't see Dell's "pidgeon dump" on CPUs 😂 Their paste become hard as rock after few months, also uneven spreaded.

FiszPL
I think you didn't see Dell's "pidgeon dump" on CPUs 😂 Their paste become hard as rock after few months, also uneven spreaded.

I mean that company didn't spread out the thermal paste at upper-right corner. Almost one side of the quarter was not spreaded. I was like o_Oo_O

many say, "one dot in the centre of the CPU or GPU architecture is enough". Once you place the heat sink, it spreads the paste across evenly. I don't buy it~~

Sye_The-Vie
many say, "one dot in the centre of the CPU or GPU architecture is enough". Once you place the heat sink, it spreads the paste across evenly. I don't buy it~~

That's why I prefer to spread it manually for the best performance. If I'm in rush - I apply X shape, so it'll spread well (at least in comparison to a single pea drop in centre) under the heat sink.

Sye_The-Vie
many say, "one dot in the centre of the CPU or GPU architecture is enough". Once you place the heat sink, it spreads the paste across evenly. I don't buy it~~

I think you could be right, too. But this is interesting case. Actually, I got "DEEPCOOL ASSASIN 3" air cooler. (Below status is comes from checking HWmonitor, when I rendering my task for 18 hours.) I'll describe highest temperature first. My 5800X CPU temperature was 92-94 when the month I bought PC. And the next month, temperature goes to 96-99. And the third month, temperature goes to 103-106. Now checking average temperature. It was 78-82 in first month. Next month, it goes 86-88. third month, it goes 93-97. Is anyone think this is OK? I think the empty space made my CPU's thermal paste to dry more earlier.

FiszPL
That's why I prefer to spread it manually for the best performance. If I'm in rush - I apply X shape, so it'll spread well (at least in comparison to a single pea drop in centre) under the heat sink.

I apply X shape when I reapply thermal paste. Thanks for good info for everyone!