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Bun's Lab

This is the USB 3.0 header. There are adapters, that look incredibly jank, block you from using longer graphics cards and cost a mere $17. Shipping not included

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114 viewsedited 23:35

Bun's Lab

But now comes the real kicker. The fans were running incredibly loud. Fan speed management is something of the 2000s, I didn't expect that to be an issue. So I checked the BIOS and all is fine there. Yet, the fans were in jet engine mode

123 viewsedited 23:37

Bun's Lab

No problem, I'll just throw lm-sensors and pwmcontrol at the problem. How hard can it be? Done it before. Over a decade ago, lol.
sensors-detect told me there is an nct668x IC, with the required kernel module being nct6683. Alright, let's try pwmcontrol .. huh, permission denied?

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120 viewsedited 23:40

Bun's Lab

So, not only were those I/O devices set to read only, writes have no effect

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122 views23:41

Bun's Lab

Some of the register locations can be reverse engineered; others are too well hidden. Given this, writing any values from the operating system is considered too risky with this firmware and has been disabled. All limits must all be written from the BIOS.

https://docs.kernel.org/hwmon/nct6683.html

And of course, there is no parameter to override this. Let me burn my hardware down if I want to!

119 views23:41

Bun's Lab

So what gives?
Having a look at the actual sensor readings gave me a clue.

Of course the BIOS' own control algorithm gets angry when one of the sensors reports 120°C

119 views23:43

Bun's Lab

It's this little bugger I didn't transfer to the new case, connected to this header.

Works now.

Fucking Lenovo.
Lesson learned I guess. Lenovo OEM boxes are not meant to be upgraded or their parts re-used. You buy them, you use them, you throw them away

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163 views23:44

Bun's Lab

I scored so much stuff at the Finger Treffen hacker camp, it will take a while for me to digest it all.

Thanks Panda and Keyjn, for putting up with me

126 viewsedited 08:23

Bun's Lab

Photo

Let's start with these. I rescued all three logic analyzer and this pattern generator from certain destruction. One is already with a new, happy owner, and known working

136 views08:24

Bun's Lab

Forwarded from Fabi

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Bun's Lab

In the box of LA probes and parts were these. 64 pin IC clamp, damn. That will come in handy for classic 68k stuff

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137 views08:26

Bun's Lab

Some time ago I rescued those pods and accessories belonging to a Dolch Atlas 9600 / Colt300 logic analyzer system. The LA itself sadly was already gone the way of all mortal things. Dug it out to see if they are compatible with the Dolch I got not. Sadly they are not.

I'm actually not sure if those boards belong to the system, couldn't find much information about them. They were in the same box as the rest.

If anyone here has a compatible system, hmu. The stuff is yours then.

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215 views21:40

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