# Too much in-rush current when starting up my modular? **URL:** \ **Category:** DIY STUFF\ **Created:** [May 29, 2020, 8:55pm UTC](https://lookmumnocomputer.discourse.group/t/too-much-in-rush-current-when-starting-up-my-modular/1068 "2020-05-29T20:55:18Z")\ **Posts on this page:** 1\ **Showing post:** 6
**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:** [May 30, 2020, 12:52am UTC](https://lookmumnocomputer.discourse.group/t/too-much-in-rush-current-when-starting-up-my-modular/1068/6 "2020-05-30T00:52:02Z")
> [@WesleyV](#): > > I’d be surprised if the two power supplies I’ve got can’t collectively handle 22 modules Does that include the midimuso you mention in another topic? > [@Module requests](https://lookmumnocomputer.discourse.group/t/module-requests/39/165): > > I worry though, since the midimuso apparently take 500 milliamps or something crazy Indeed it says at [http://midimuso.co.uk/index.php/octex/](http://midimuso.co.uk/index.php/octex/) (for the Octex, don’t see this info for the ORAC): > Specifications: > > Power supply voltage: 12 volts DC. (max 18V), +ve centre pin (2.1mm) > Power supply current: 500 mA minimum (per board when chaining) 500 milliamps on the +12V bus likely would eat up most of a power supply right there. Yikes. --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/too-much-in-rush-current-when-starting-up-my-modular/1068)._