# PSU startup problems

**URL:** <https://lookmumnocomputer.discourse.group/t/psu-startup-problems/4296>\
**Category:** Uncategorized\
**Created:** [November 29, 2021, 2:20pm UTC](https://lookmumnocomputer.discourse.group/t/psu-startup-problems/4296 "2021-11-29T14:20:22Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Dave](https://avatars.discourse-cdn.com/v4/letter/d/ee7513/32.png) [@Dave](https://lookmumnocomputer.discourse.group/u/Dave)\
**Post date:** [November 29, 2021, 2:45pm UTC](https://lookmumnocomputer.discourse.group/t/psu-startup-problems/4296/2 "2021-11-29T14:45:18Z")

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My post from the build progress thread, to keep the information collated.

> [@My build progress](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/4225):
>
> I do use diodes in series and not 10R resistors, could that make the difference?

That is a similarity between us, well on my own modules I do, 10-ohm resistors when specified by others.

The difference is my -12v rails are fine, will always be the +12v rail that requires a repower. I get the same on all 5 of my PSU’s, but not normally at the same time, and only once or twice a week.

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