I have recently updated to… Dragonfish-24.04.2.5 I keep getting this error… “Sensor: ‘Sensor #0’ had an ‘Assertion Event’ (Software NMI ; OEM Event Data2 code = 00h ; OEM Event Data3 code = 28h)” Looks like I am running a very old BIOs - L1.11C bios-release-date 09/18/2019 Motherboard ASRock C…

[image] Captain_Morgan: If you have any references to this being the fix, please post. It not a BIOS update that we have been recommending. This is what Gemini suggested and did some googling to confirm, but seemed to work so…

[image] MrBinary: I keep getting this error… “Sensor: ‘Sensor #0’ had an ‘Assertion Event’ (Software NMI ; OEM Event Data2 code = 00h ; OEM Event Data3 code = 28h)” Apart from the error does the system run? It maybe BIOS, but nothing has changed. It might be a sensor defect on an old board. …

When I searched the topic it came back that the BIOs update would solve the problem. I did disable CPU C-States Support, which now the error has stopped showing, but I feel like all this did was allow me to ignore it.

[image] MrBinary: I did disable CPU C-States Support Good to hear this works… we have had a few cases where Intel C-states have been problematic. (I think they have a buggy design). If you have any references to this being the fix, please post. It not a BIOS update that we have been rec…

[image] MrBinary: When I searched the topic it came back that the BIOs update would solve the problem. I did disable CPU C-States Support, which now the error has stopped showing, but I feel like all this did was allow me to ignore it. Funnily enough… my own mini started doing it as well. I …

Let’s pretend you did it on purpose to provide first-hand help with the issue. Outstanding customer support!

[image] Constantin: Neither Asrock Rack nor SuperMicro typically post BIOS’ out in the open. Supermicro does: E.g. Firmware Resources | Support Firmware Resources | Support Download Supermicro resource. Firmware Resources | Support Firm…

So does AsRock Rack… https://www.asrockrack.com/general/productdetail.asp?Model=C3758D4I-4L#Download

[image] etorix: So does AsRock Rack… Public Safety Announcement Its good that its available, but TrueNAS doesn’t take responsibility for BIOS issues we don’t recommend.

Hello! Thanks for posting this. I have a TRUENAS-MINI-3.0-XL+ from a 2021. At one point I had opened a case with IXSystems asking for the exact motherboard the system used as I wanted to look at the NIC chipset to see if it could support 2.5/5 along with the 10G-BaseT. After much back and forth the…

For TrueNAS CORE (as root): /bin/kenv smbios.planar.product /bin/kenv smbios.planar.maker /bin/kenv smbios.planar.serial If that does not give you a model number try replacing planar with system. For TrueNAS CE (as root): /bin/cat /sys/devices/virtual/dmi/id/product_name /bin/cat /sys/devices/vi…

iX Systems Mini-3.0-E Bios Update

TrueNAS General

etorix January 14, 2026, 6:40pm 22

Instructions here… for the opposite issue of “wiping” a board pulled out of a genuine system.

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iX Systems Mini-3.0-E Bios Update

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