TerraMaster F4-424 PRO – random hard power-off under disk load (TOS 6)

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jabediny
Posts: 7
Joined: 05 Jan 2026, 08:02
Canada

TerraMaster F4-424 PRO – random hard power-off under disk load (TOS 6)

Post by jabediny »

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?
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Gremlin
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Joined: 02 Dec 2022, 22:31
Great Britain

Re: TerraMaster F4-424 PRO – random hard power-off under disk load (TOS 6)

Post by Gremlin »

jabediny wrote: 05 Jan 2026, 08:24
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 :roll: ) was I able to (mostly) minimise the issue. However, I have to point out that none of the shutdown events impacted on o/s or data and machine would restart without intervention.
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
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CursaYang
TM Support
Posts: 740
Joined: 06 Jan 2025, 16:34
China

Re: TerraMaster F4-424 PRO – random hard power-off under disk load (TOS 6)

Post by CursaYang »

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)
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