Moved SSD from one motherboard/pc to another -> Higher temperatures and fan speeds

othenone

New Member
May 12, 2026
1
0
1
Hello!

I have recently upgraded my homelab server. I moved from a Optiplex Micro 7090 with i5-10500T to a Optiplex Micro 7000 with i5-12500T. This upgrade was done by moving my SSD and RAM over to the new mini pc.

After the change, i am experiencing higher temperatures and fan speeds overall. After researching the topic, i have the following possible reasons the temperature and fan speed are higher in the new pc:
- The heat release of the new mini pc is not as good as the old one. This could then be the fan not being effective or the heat is not led well enough to the cooling block. I have plans to put new thermal paste onto the CPU of the pc, but havent found the time yet to do so.
- Changing pc leaves configurations in proxmox not customized for the new CPU, which might make them inefficient in some way.
- The new pc simply emits more heat than the old pc, therefore, there might not be anything that might substantionally get the heat and fan speed down.

What i would like to know from the community:
Could there be any configurations within proxmox that causes these CPU temperatures and fan speeds to go up? What could these be? I have considered backing up all vm servers and make a fresh installment of proxmox onto the new pc, but i dont know if it makes sense to do so.

Additional information:
- Previous pc: around 2200 RPM fan speed with 50°C cpu core
- Current pc: around 3200 RPM fan speed with 56°C cpu core
- All temperatures and fan speeds with a CPU usage of around 1.0% of 12 CPUs.
 
And what do you expected?
You got the CPU with more power and the new system so ask the manufacture.