Thanks I was, of course, looking and very curious what their tool chain story will be.

Yes the lack of transparency on ARM architecture and the obfuscation of the RAM capacity with just the slot information is annoying. Not sure if it is deliberate to sell this at a premium to "mainframe" customers or whether its just their marketing folk not being on the ball. Fascinated by the fact Japan has a 2nm process node but I suspect that too is marketing. Perhaps the 2nm portion of the chip is done at TSMC and the rest of the package done in Japan or something like that. It's not like there's a plethora of 2nm Fabs around the planet to choose from.

If they didn't mention SVE2, I wouldn't have known either... that would make it arm9 at the earliest...

And if they'll sell it, seeing as they market it as 'sovereign AI'.

FUJITSU-MONAKA utilizes a 3D-stacked architecture with a state-of-the-art 2nm process for the core and a 5nm process for the cache and I/O sections.

https://en.wikipedia.org/wiki/Japan_Advanced_Semiconductor_M...

The Phase 2 factory was under construction as of January 2025, next to the Phase 1 facility, and is expected to be completed by 2027.[3] Initially planned for manufacturing semiconductors using a 6 nm process, 3 nm was incorporated into production plans for 2028 in 2026

Yep. I'd say the CPU is manufactured outside, and the rest of the server in Japan.

Combining info from https://news.ycombinator.com/item?id=49740907 and https://news.ycombinator.com/item?id=49740901, it seems that they're relying on TSMC for the first batch, but plan on moving production to JASM once that's ready?

Pretty sure it's worded in a way that it applies only to the server, so it should be read as two distinct things:

- Japan-developed 2nm 3D-stacked CPU

- server integrated, developed, and manufactured in Japan

put on AI inference when they don't build the GPU?

GPU in AI world is essentially a set of specific matrix calculations that this CPU supports on hardware-level. Thought memory speed seems low.

According to a Feb press release, they're fabbed by TSMC:

For FUJITSU-MONAKA, the 2nm semiconductors will tape out next year. Due to this, Rapidus would be unable to meet the deadline, so TSMC is handling the manufacturing.

Source: https://global.fujitsu/en-global/pr/news/2026/02/12-01?utm_s...

According to Rapidus webpage, they are explicitly starting mass production of their 2nm in 2027.

Source: https://www.rapidus.inc/en/iim/?utm_source=chatgpt.com

Would be cool to get ahold of one of these in the US.

I do find it odd that the 2U model has less storage capacity than the 1U on their chart. That doesn't make much sense to me.

The Fujitsu Lifebooks were legendary for their robustness back in the day, I'm genuinely sad you had that experience.

The only fujitsu laptops I used was back in 2011- it was a budget version for on-call and it was fine..

Sounds like the fans running 100% probably contributed significantly to the issue here. If I had to guess it was likely that the C-States were disabled in BIOS somehow so the CPU clock was running at full tilt the whole time, maybe combined with a bad thermal paste job.

I'm not here to defend Fujitsu but I've had really bad experiences with basically every major laptop brand (Dell: majorly bad coil whine and especially faulty soldered RAM, HP: keys vanishing from the keyboard and very weak hinges that break all the time, Apple: The GPU unsoldering itself and the butterfly keyboard shenanigans).

I don't really know any brand with a flawless track record sadly.

Before anyone brings up Thinkpads, they're trading on a reputation that hasn't been true for over a decade. If you have fond memories of a thinkpad it's most likely that you had it from before 2016, or it's "fine", but certainly not great.

I wouldn't trust that this CPU can do maths properly.

Never buy products of this dodgy company.

https://en.wikipedia.org/wiki/British_Post_Office_scandal