I have installed samsung 970pro and adata xpg8200 nvme drives on the motherboard slots and i purchased aluminium heatsinks to improve heat dissipation and when i put the cover back on the top part is flush but the bottom left side is not flush as it is not tall enough to fit the heatsink and i coud not find any heatsink made of aluminum that are less than 3mm thick and it makes upto 3.5mm 4mm along with the thermalpad that goes on, there are copper ones that are 1mm thich but they are flat and dont have grooves and there by heat dissipation wont be as good due to decreased surface area and copper due to being more dense does not let go off the heat as good as aluminum, has anyone found any heatsinks that work for them, thank you.

I guess the major determining factor in deciding to put a heatsink on your drive is whether or not it actually needs one in the first place.

The controller's maximum operating temperature for both a 970 PRO NVMe M.2 SSD and an XPG SX8200 Pro M.2 NVMe SSD is 70C (as is typical)..Anything over 70C and the things will begin to throttle in an attempt to reduce their temperature, same as like a CPU and a GPU will.

Experts in the SSD world say that for best longevity/reliability, they shouldn't run below 50C, but whatever.

You can use HWiNFO (Portable or Installer) to see the Cur/Min/Max/Avg temps of drives in the Sensors part..You can run an SSD/HDD benchmark such as CrystalDiskMark to stress things out while running HWiNFO to monitor.

There's all kinds of 'universal fit' M.2 heatsinks around if you need/want any, such as ones shown here.

2 important rules (often not followed)

1) Don't add a heatsink to a SSD unless you first prove that it needs it. I am on the fence about recommending a SSD benchmark to place a greater than normal load on the drive. I guess it is good for testing your thermal limits and safety margin, but it isn't accurate indication of normal use. Instead, I would recommend monitoring the SSD controler's temperature over hours and days of normal use and then decide if it needs a heatsink.

2) If you add a heatsink to a SSD, purposely avoid applying thermal pads to the SSD's NAND (memory) chips
If the SSD heatsink comes with one full thermal pad (probably does), cut it down to size so that the thermal pad only touches the SSD's controller chip and does not touch the NAND chips. NAND does not need extra cooling ever and will deteriorate faster and die sooner if you cool it. There is never a reason to cool NAND, and there is always a reason not to cool NAND, so don't do it!

This was gigabytes idea or something..i don't think it needs it yet..they run hott all the time and don't hurt nothing...It's ET'd damn a mill 2 million hoursss man....I'm only at 14tb total writes...it hasn't budged yet or slowed down lol.

Hi, I am try to build custom water cooling for my M.2 SSD on DARK x299.
 
1. Problem with mount SSD in to slot, state screw have too short thread and not even screwed in half a turn.

Here is what I have in summary.

It even looks scary and not reliable.
 
 
2. If in use PCI-E slots PE2, PE3 and PE4 we can not install any custom cooling SSD in PM2.

By the way with SR-3 too.