Making Noctua fans work (quietly) with a Supermicro motherboard

I've been building a Mini ITX 'quiet-ish' server using a Supermicro motherboard and some Noctua fans.

I noticed sometimes the system would start 'revving' the fans up to max power. Then after a few seconds they would get quiet again. The CPU temps and other temps on the system were stable and not worrying, but popping off the server's cover, I noticed LED8 on the motherboard would blink red every time the fans would ramp up:

Supermicro LED8 Fan failure blinking LED

That LED indicates a 'fan failure


Resetting IPMI and upgrading BIOS on a Supermicro motherboard under FreeBSD (or not)

That title is awfully specific.

ASPEED SoC on Supermicro Motherboard powering IPMI

But I was building a new FreeBSD server with a used SuperMicro motherboard with IPMI. The default password was changed from ADMIN (or maybe it's a new enough board that it's a random password), and when I was booted into FreeBSD, I wanted to reset the IPMI settings so I could be sure I was starting fresh.

ipmitool that came with my FreeBSD install doesn't seem to be able to reset IPMI to factory defaults, so I tried running ipmicfg from


PTP and IEEE-1588 hardware timestamping on the Raspberry Pi CM4

2024 Update : This works out of the box on the Compute Module 5. See comment .

I've been following the issue CM4 is missing IEEE1588-2008 support through BCM54210PE since I heard about IEEE1588-2008 support on the Compute Module 4 last year.

Broadcom NIC on Raspberry Pi Compute Module 4

Apparently the little NIC included on every Compute Module 4—the BCM54210PE , which is different than


The Raspberry Pi Pico W brings WiFi for $6

Today, Raspberry Pi announced the Pico W , a new $6 version of the Pico that includes WiFi.

Raspberry Pi Pico W on breadboard

No word yet on Bluetooth. The WiFi chip in the Pico W ( Infineon CYW43439 ) supports it, but right now the RP2040 firmware lacks Bluetooth support.

The Pico W being available for just $6 is huge, because one of the chief complaints about the original Pico (powered by Raspberry Pi's own RP2040) was its lack of


Answering Questions about the PetaPi

A few weeks ago, I posted a video about the Petabyte Pi Project —an experiment to see if a single Raspberry Pi Compute Module 4 could directly address sixty 20TB hard drives, totaling 1.2 Petabytes.

Petabyte of Seagate Exos Hard Drives

And in that video, it did , but with a caveat: RAID was unstable. For some reason, after writing 2 or 3 GB of data at a time, one of the HBAs I was using would flake out and reset itself, due to PCI Express bus errors.


ESPHome on the Raspberry Pi Pico!

Raspberry Pi Pico with RP2040 Maker Pi from Cytron and Seeed Studio WIORP2040-A Dev Board

A couple weeks ago, I glanced through my ever-growing collection of Raspberry Pi RP2040-based boards—pictured above are three of the boards I've tested: a Cytron Maker Pi RP2040 , a Raspberry Pi Pico , and a Seeed Studio Wio RP2040 .

I'm not an expert in embedded programming by any means, but I've played with Arduinos, the ESP8266, and Raspberry Pi's RP2


Industrial Raspberry Pi computers (one is explosion-proof)

In today's video, I highlighted industrial Raspberry Pi computers. Specifically, the Lincoln-Binns CM4-Box Pro , the Onlogic Factor 201 , and fieldcloud's Milü-X Industrial IoT Gateway.

Onlogic Factor 201 Industrial Raspberry Pi computer

And I asked Lincoln-Binns, Onlogic, and fieldcloud what makes an 'Industrial' Pi any different than a Pi and an enclosure like you could buy from a normal Pi retailer.

After all, even accounting for custom Compute Module 4 carrier boards , there are dozens of similar options


Raspberry Pi CM3E joins CM4S in the old SO-DIMM form factor

Last week this Tweet crossed my timeline:

If you look closely, that's a "Raspberry Pi Compute Module 3E"—which is so far not listed on Raspberry


Benchmarking DNS on my Mac with Pi-Hole

After watching Level1Techs' THE FORBIDDEN ROUTER II - DIAL-UP BY DAWN video, I wanted to do some DNS benchmarking on my local network.

Since I run Pi-hole locally, and rely on it for local DNS resolution, I wanted to have a baseline so I could compare performance over time.

In the video, Wendell mentioned the use of Gibson's Windows-only DNS Benchmark tool. But that's Windows-only. Or maybe Linux under WINE, but definitely not a native /


The TV that's not: NEC's Pi-powered 55" Display

This is not a TV - Jeff Geerling with NEC monitor powered by Raspberry Pi

The NEC UHD Professional Display M551 pictured here is not a TV—it's a display . And it's powered by a Raspberry Pi.

Specifically, it's powered by a Raspberry Pi Compute Module 4, and that is done using Sharp NEC's new MPI4E carrier board :