On January 3, 2005 05:35 am, Bob Goddard wrote: > What matters is the volts, amps and the voltage drop when the rails > are put under load. You have to ask yourself how many amps does the > mb require on each rail and can the psu supply it? The total power > supplied by the psu means nothing if it supplies all that power over > the 12v line but leave nothing for 5v.
As I said, I measured the variation on the relevant lines with a 100MHz DSO when running under load. There isn't any kind of significant droop or swell in the lines -- not when asterisk is ringing a line, not when executing a kernel compile and a find / -name 'somethingthatdoesn'texist', not when doing both. Again, if the TDM400P is drawing more than a couple hundred milliamps over nominal when ringing all four lines, something is wrong in the design, and if your PSU can't source a couple hundred milliamps more than it is under normal load, you've specc'd it too close to your average draw. -A. _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
