Tuesday, January 11, 2022

Cascade Complete Gel may not be good enough

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Recently the dishwasher started washing later than it should. Instead of spraying sounds starting early while it was filling, the sounds oft...
Wednesday, November 25, 2020

I give up on running recent NetBSD on old hardware

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NetBSD is an amazingly cross platform operating system. It also supports some very old hardware, such as most of the first small VAX systems...
Sunday, October 25, 2020

ULTRIX 4.00 problems writing to devices hosted on a Linux NFS server

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When the VAX ULTRIX 4.00 Rev. 158 /usr/diskless/genvmunix kernel does a non-appending write to a device, like "echo foo > /dev/conso...
Monday, October 19, 2020

Installing MIT Project Athena 4.3BSD onto a VAX

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Athena 4.3BSD is an MIT modification of 4.3BSD for their Project Athena distributed computing environment. Although it is designed to work ...
2 comments:
Friday, October 16, 2020

AT motherboard serial connector pinouts can differ between motherboards

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Older AT format motherboards don't have a back panel with many connectors, like an ATX motherboard. The only direct external connection ...
Thursday, October 15, 2020

ATI Mach 64 GX character generator failure

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This is an PCI video card from ATI, based on the 210888GX00 Mach64 chip. I think it's a Graphics Pro Turbo. It is only designed to accel...

An ugly fix for on ODIN OEC12C887A RTC

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The Odin OEC12C887A chip contains a battery backed real time clock and a small amount of battery backed RAM. The battery and the crystal nee...
Monday, October 12, 2020

Fix for Tseng ET3000AX SVGA card displaying monochrome

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This is a Micro-Labs VGA Solution, an ISA super VGA card based on the Tseng Labs ET3000AX. It seems to be a reference design because other ...