Category Archives: Blog

New Project: Control SimH via a web browser

Hi, This place has been very quiet for 3 years+, but I now have more time and headspace to concentrate on DEC related stuff. I just wanted to put up a brief post to describe my new DEC-related project. The … Continue reading

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VAXstation 4000 Power Switch – Issues and Cleaning

I recently was very happy to take delivery of 2 VAXstation 4000 Model 60 machines from a generous friend I met at DEC Legacy 2011. They’ve taken some time to get to me but are in very good condition and … Continue reading

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Final Thoughts for RetroChallange 2012

Wow, this has been quite a ride for my first RetroChallenge. With the VAXcluster SimH project, I took on a project that had a lot of unknowns and a lot of things I didn’t know the next thing about. I … Continue reading

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RaspberryPi VAX Cluster: We have a Cluster!

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Raspberry Pi VAXcluster: Software Mania

Everything pretty-much for the cluster project has moved over to the software side. I have made several significant progress steps: I cracked ipnat, which I am using on the Intel routing to route traffic between the internal 10.0.0.x network and … Continue reading

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Raspberry Pi VAXcluster: Node Bay covers

Raspberry Pi Node Board covers, a photo by pixel_mason on Flickr. Found a pair of very nice mesh 5.25″ blank panels from my gaming PC case that I have adapted to cover the 5.25″ bays on the cluster box. Looks … Continue reading

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RaspberryPi VAXcluster: Build Photos

SimH VAXcluster Build, a set on Flickr. Here’s the promised photos, a day late and a dollar short.

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RaspberryPi VAX cluster: I haven’t forgotten about you!

Hi, sorry for the lack of articles and updates. I haven’t abandoned the project, actually I’ve been too busy building up the hardware together and working and figuring out silly things like the TCP/IP routing (yes, I did end up … Continue reading

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AlphaServer 4100: Replacement Parts

As you know I had no luck reviving the AlphaServer 4100 after it blacked out on me when I initially powered it on. Having traced the issue to the PCI back-plane subsystem via a lot of LED chasing I hunted … Continue reading

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AlphaServer 4100: No dice

I replaced the PSUs in the AlphaServer 4100 yesterday and… they work but the machine still isn’t starting up. Nothing on the LCD panel, nothing on the terminal port. I’ve swapped CPUs around, run it with 1, run it with … Continue reading

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