Just in case it matters: ASRock A520M-HDV motherboard AMD Ryzen5 5500GT CPU Xilence XN054 700 W PSU
IMHO theoretical power is more than enough. Is there a way to check for actual performance other than multimeter and check the voltage? And then I would think that removing 50pin cables from 6i24 board should help as 7i33 and 7i44 do not draw extra power. Hmm could it be that the pci-e slot is the bottleneck? Is there any other means to provide the power to 6i24 board? Viesturs pirmd., 2026. g. 10. aug., plkst. 21:36 — lietotājs Chris Morley (<[email protected]>) rakstīja: > > Power supply on PC marginal? > > > > Sent from my Galaxy > > > > -------- Original message -------- > From: Peter Wallace <[email protected]> > Date: 2026-08-10 10:10 a.m. (GMT-08:00) > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: Re: [Emc-users] PC restarts when pwmgen value is non-zero > > On Mon, 10 Aug 2026, Viesturs L?cis wrote: > > > Hello! > > > > So I am now at customer's premises, I have mounted PC inside control > > cabinet, wired basic safety loops and connected servodrives to 7i33 > > board - analog outputs and encoder inputs. Encoder inputs seem to work > > - rawcounts value is changing nicely if I push the machine around. > > So I wanted to try to move some motors from LinuxCNC. There are total > > of 4 servodrives and one of them is toolchanger carousel - I wanted to > > start with that because it will cause no damage with its motion. > > I usually start with setting pwmgen value with vcp slider so that I > > can check if there is any analog voltage on output and if the drive is > > actually moving the motor. > > The end result just does not make sense to me. Long story short - with > > machine power still disabled, LinuxCNC enabled and giving any pwmgen > > (I tested with 2 out of 4) nonzero value, PC restarts in seconds. > > I thought that my wiring is bad, but it happens even if I unplug all > > cables from 6i24 board: > > https://photos.app.goo.gl/882aHXWcDAYcLsf29 > > > > Another of previous attempts that was filmed: nonzero value for pwmgen > > is fine, if it is disabled. PC restarts in 3 seconds, when pwmgens are > > enabled and value goes from zero to nonzero: > > https://photos.app.goo.gl/bFTSQout66WjaUXh7 > > > > First attempt that I filmed - long video, starts with powering the > > machine on. PC restarts almost immediately as I change pwmgen value > > > > As I am preparing and writing this email, PC is turned on, LInuxCNC > > enabled, all pwmgen values are zero, for 26 minutes now. > > > > This is what happened when I changed the slider value: > > https://photos.app.goo.gl/hYYmEBvZNdHPvpRg6 > > > > Does anyone have any idea what is going on? This is the first time I > > am seeing something like this. > > > > Viesturs > > > > Very strange > > What LinuxCNC verion? > > > > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > Peter Wallace > Mesa Electronics > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
