I’m using three 800G Micron 7450 Max M.2, in a mirror, for the system dataset and app storage. They are rated for 7w when in use and 3w when idle. They are always sitting between 55c and 60c, that seems way to hot for me. They are by far the hotest components in my build, the CPU rarely goes over 40…

Do you have good cooling airflow over them?

They each have a thin 1mm copper heatsink. The case is small but it’s full of well positioned fans. The three drives are in different locations around the case, two on a riser card and one attached to the mobo. I might believe one of them has an airflow issue but not all three.

[image] cgfrost: 800G Micron 7450 Max M.2 from Micron website Operating Temp 0C to +70C Micron 7450 NVMe SSD The Micron 7450 NVMe SSD is the world's most advanced 176-layer NAND data center SSD, delivering excellent latency and a range of storage-deployment options. …

I know I’m within the operating temp but it’s getting a little close for my liking. This is the permanent idle temp aswell, I’m not working those drives very hard yet.

With the migration from Core to Scale, one thing i have realised Is that my 2 NVME stick in this state PS-4 0.0050W (from the previous PS-0 8.4800W), despite they are costantly in use for apps/docker. I get This info from Joe s multi alert script (don’t know how get from cli). This Is reflected nor…

You have a cooling problem, it is that simple. 7 watts is nothing, there are some out there that suck 15 watts (the maximum per spec). If you have the time, I highly recommend that you post some photos of the inside of the case focusing on the case fans and the M.2 NVMe drives. More cooling issue…

[image] cgfrost: They each have a thin 1mm copper heatsink. Attach a bigger heatsink to this copper sheet.

Thanks for all the comments. I will look at the cooling and put bigger heatsinks on two of the drives. The third is a little space restricted, will have to make something I think. This is quite a “customised” build. Full spec is; Case - Jonsbo N3 PSU - HDPlex 500w GaN ATX Board - ASRockRac…

I can see why they are hot. The locations are terrible for airflow, and the pieces of copper are called “heat spreaders” and are terrible heatsinks, very little surface area. Let’s talk a little bit here, I will list the problems I can see with this one photograph: The M.2 drive to the right of …

i have had those kind of “heat spreaders” on the NVME sitted in my itx workstation. He do literally nothing, throwed away after 1 week. Replaced with this: [Screenshot 2024-11-27 151129] from 50° to 40° (can’t add fan or else, no space…) On the nas (with good airflow and space) i use those reall…

Enterprise M.2 SSD temprature

TrueNAS General

Stux November 27, 2024, 10:25pm 17

Yes, the little stream of writes makes a difference

Topic		Replies	Views
Problem with NVME driver/ boot-pool TrueNAS General SCALE , Hardware , ZFS	39	618	October 23, 2024
Heatsinks for M.2 NVME drives TrueNAS General SCALE , Hardware	13	1046	May 15, 2024
My 1st build, 21 SSDs and a Deep Mini ITX board in a Jonsbo N3 TrueNAS General SCALE , Hardware	42	9587	September 17, 2026
High temperatures on two SSDs TrueNAS General SCALE	20	629	November 11, 2024
Weird issue with HGST drives TrueNAS General	32	606	April 21, 2025

Enterprise M.2 SSD temprature

Related topics