HOST temperature 90.7 above maximum temperature of 90.0

Sovol SV08
1

Greetings,

Encountering the following error when printing. Any ideas?

I have replaced the fun on the bottom of the SV08 but still encountering this message when printing. Is there a way to test and confirm that the bottom fan works should that be the case.

Klipper reports: SHUTDOWN

HOST temperature 90.7 above maximum temperature of 90.0.
Once the underlying issue is corrected, use the
"FIRMWARE_RESTART" command to reset the firmware, reload the
config, and restart the host software.
Printer is shutdown
2

If you replaced the fan, the only thing to do is remove the bottom & start the printer.
Double check your wiring, plug & the heat sink for issues.

3

Have you added any software to your machine?

I’ve not seen anyone else with overheating hosts on any of Sovol’s H616 boards.

You could stick a heat sink on your H616 but I still wonder WHY yours runs hot.

4

I haven’t added any software recently. It was working fine at least for a month or so since the last software update.

5

At what point should this fan start running?

6

The motherboard fan should run all the time…so as soon as you turn on the printer.

7

Is it possible that this pin is bad? I tried a 4010 fan that I have in stock but that isn’t running neither. I ordered the one @cardoc shared. Arrives tomorrow.

8

Yes it is possible the pin is bad.

The heatsink is in addition to the main fan not a replacement for.

Is the stock motherboard fan 5V or 24V? The fan you tested was the same?

5V won’t spin a 24V fan

2 Likes
9

They are both 24V. Replacing the Noctua.

20260220_112823
20260220_1128231920×3410 847 KB

20260220_112841
20260220_1128411920×3410 696 KB

10

Also I didn’t consider the included fan is probably 5V. You may have to sacrifice a USB cable and get 5V from there.

11

I found this if it helps.

First mod on my SV08: Noctua fan for the controller bay