# Help troubleshooting AI Synthesis PSU

**URL:** <https://lookmumnocomputer.discourse.group/t/help-troubleshooting-ai-synthesis-psu/7546>\
**Category:** DIY STUFF\
**Created:** [September 20, 2024, 8:23am UTC](https://lookmumnocomputer.discourse.group/t/help-troubleshooting-ai-synthesis-psu/7546 "2024-09-20T08:23:09Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\
**Post date:** [September 20, 2024, 12:43pm UTC](https://lookmumnocomputer.discourse.group/t/help-troubleshooting-ai-synthesis-psu/7546/3 "2024-09-20T12:43:28Z")

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There’s a known fix, see this and subsequent posts:

> [@PSU startup problems](https://lookmumnocomputer.discourse.group/t/psu-startup-problems/4296/17):
>
> Hey, sorry to revive this old thread but I’m also looking for a solution to this… it’s my last issue to resolve with my recent modular project. Has anyone found any solutions? Did the NTCs help @Dave ? Edit - I’ve just seen [this](https://modwiggler.com/forum/viewtopic.php?t=247752) post over on another forum… do you think replacing d5 and d6 with Schottky diodes could help?

or this video

[![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/c/e/ce569c2d5881e8257f6c5aba551de585db4afdf1.jpeg "Power supply problem (and solution)") ](https://www.youtube.com/watch?v=GQKkBUF3zvo)

tl;dr: Replace the diode from the positive regulator output to ground with a Schottky like 1N5817.

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