I have been in contact with TNAS support for days now.
I am using the latest BIOS on the F4-424 Pro with the latest TOS 6.
I bought the unit and only after a about 1 month, I started to load my files to the TNAS.
Before I knew it, I had 2 occasions where I got a message on the web login that the power was shut off abnormally and files copied may be at risk.
I took serious precautions since this is not a joke and shutting down without pressing the button or a real power outage is terrifying for a NAS bay that is supposed to save my family memories.
There are only 2 HDD bays in use and 2 NMVE slots used. I wouldn't expect the power level to be high.
What I discovered was that if I place a small fan directly towards the power adapter only then it will not shut off randomly.
I have since move several TB's of data to my hard drives on the TNAS without interruptions.
Has anyone else had their brand new TNAS have an overheating power adapter?
TerraMaster F4-424 PRO – random hard power-off under disk load (TOS 6)
Re: TerraMaster F4-424 PRO – random hard power-off under disk load (TOS 6)
FYI I have previously experienced "abnormal shutdown" on F2-424 and had discussions with @TMsupport without any real resolution from that end. Only by changing the power supply arrangements (back to a basic TM power supply on a different outlet
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
Re: TerraMaster F4-424 PRO – random hard power-off under disk load (TOS 6)
We apologize for any inconvenience caused. We have reviewed the email communication records, and a sales colleague will contact you to arrange for a replacement power adapter. Please keep an eye on your inbox.
To contact our team, please send email to following addresses, remember to replace (at) with @
Technical team: support(at)terra-master.com(for technical support)
Service team: service(at)terra-master.com(for purchasing, return, replacement, RMA service)
Technical team: support(at)terra-master.com(for technical support)
Service team: service(at)terra-master.com(for purchasing, return, replacement, RMA service)


