Case modding since 1998

The art of computers.

I'm Johan "Mashie" Grundstrom, a technologist that spent many years turning computers into art - scratch-built cases, one-off conversions and competition winners. More recently I have started to indulge myself in everything local AI.

Explore the worklogs About Mashie
11
worklogs
28+
years of modding
1
CPL C3 win

Latest worklog

2026 · Desktop AI factory

A 4-node DGX Spark AI cluster with dual MikroTik CRS504 switch fabrics.

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Welcome to Mashie Design

Computers, interesting both on the outside and the inside.

The idea to mod computers as a hobby was introduced to me back in 1998 when the cooling for a Celeron 300A had to be improved to sustain a 50% overclock.

As the years passed my case modding skills improved, and in 2002 the Anemone mod placed first in the 2002 CPL C3 Competition in Dallas, USA. With Intel as the main sponsor it opened up some nice opportunities, one of them resulting in Project 3, a custom case to celebrate the launch of the Intel Pentium 4 3GHz CPU.

Many more case mods spawned as a result and eventually I retired from the modding scene.

Nowadays I’m all in on AI so that is what the majority of my blog will be about going forward.

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