Re: Modding Sparkle FSP300-60ATV

I think I also need to put a 7812 or 12V zener to present 12V to the 12V overvoltage sensor.

I want to do more than the usual mods to make this a bench power supply.

This is for a workshop for OlyMEGA, a maker group in Olympia, WA. We have a bunch of 300W ATX power supplies, the majority are Sparkle Power Int'l Ltd FSP300-60ATV.

What I'd like to do: Retune it to put out 5V from the 3.3V output, this will cause the 12V output to go up to about 18V. Swap the diodes on the erstwhile 5V and erstwhile 12V, because the shottky diodes on the 5V line are rated for more current.

In this way the power supply will still have a regulated 5V line, and...

Re: New Members - please post your introductions here

Hello, I'm Steve. I've been using computers for a while, got started on timeshare terminals, then got to play with Radio Shack TRaSh-80s while working there in High School. C64, Amigas, then PCs.

I've been an electronics tech for over 20 years, fixed a lot of consumer, prosumer, and professional electronics. I love fixing, modding, and building from scratch. I've only recently gotten the bits of paper that say I can do what I can already do: I got two CETs (consumer electronics and computers), just got my Extra...