In working with Mike P and HP we found that the HP Devices are able to provide us with better logging of issues even after reboots through a Stack Dump.
To access those files you would need to browse to the HP devices webpage at http://Device_IP/hp/device/svcErr.log.
Mike suggest that issues where you receive 49.xxxx error to gather the file that is produced and name it as the model of the device and serial number of the device if possible before transitioning to him.