Whining is typically one of the inductors. Most likely the hosing has come loose.
You can request an RMA to get it replaced. Gerald On Mon, Jan 12, 2015 at 7:28 AM, Lawrence Menten <[email protected]> wrote: > This might be a duplicate of : > > Possible TPS65217C/Beaglebone Black Issue > > On Monday, January 12, 2015 at 7:44:01 AM UTC-5, Lawrence Menten wrote: > >> >> My BBB Rev 3 was put into service 3 weeks ago. Noticed that board would >> periodically hang and need reboot. The board then ceased to start up at >> all. Board emits a high-pitched whine with no LEDs (including power LED) >> lit or flashing. No signs of life except the whine. Disconnected all but >> the wall-wart (5V 2A switching). Still LEDs flashing or lit, Pressing >> reset and power produced no result. Checked power voltage on connector and >> voltage was perfect. Un-jacked power (at BBB connector) and re-jacked. >> Still no LEDs lit or flashing. Still generating the high-pitched whine. >> >> This morning, after submitting an email to RMA, I decided to try powering >> from USB to bypass the regulator. As a baseline, I connected the 5v >> wall-wart. This time, the BBB booted perfectly. No whine and LEDs now >> happily flashing. Connected over ssh/ethernet and logged in successfully. >> >> Has anyone else seen this intermittent failure? >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Gerald [email protected] http://beagleboard.org/ http://circuitco.com/support/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
