TerraMaster Forum

Posted: **20 Oct 2022, 12:13**

Hello,

I've purchased a F4-421 three days ago, and sometimes the NAS stops responding, TOS becomes unavailable and I can't enter ssh. Router says it isn't connected to the local network anymore.

I attached a monitor to discover why this happens, and after a freezes, this was what the monitor show:

https://imgur.com/a/WFYTZF7

It says:

Code: Select all

[drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A FIFO underrun

It seems that is something related to the CPU. It happened twice today, one time when using TOS, and other on idle.

I'm running TOS 4.2.39. For HDD I'm using a single WD Red Plus new, tested for errors with Smart tools.

Please help me find a way I can avoid my system freezing randomly.

Posted: **20 Oct 2022, 13:59**

Did you install an extra RAM stick?

Posted: **20 Oct 2022, 21:49**

TMroy wrote: ↑20 Oct 2022, 13:59 Did you install an extra RAM stick?

No, I'm using the NAS without modifications.

Posted: **21 Oct 2022, 10:40**

{L_BUTTON_AT}checor

Please contact our service team and ask for a new replacement. you need to attach this post link to them.
By the way, may I have the product S/N? where you purchased this device?

Posted: **21 Oct 2022, 11:18**

@TMroy
I will contact service then.
S/N is A2TS210503225. It was purchased on mercadolibre.com.mx, seller TerraMaster Storage.

Posted: **21 Oct 2022, 11:24**

{L_BUTTON_AT}TMroy

The information you asked is above. Thanks.

TerraMaster Forum

F4-421 Freezes randomly

F4-421 Freezes randomly

Re: F4-421 Freezes randomly

Re: F4-421 Freezes randomly

Re: F4-421 Freezes randomly

Re: F4-421 Freezes randomly

Re: F4-421 Freezes randomly