eSOS This is a small embedded OS called eSOS stored inside the BIOS. In case of a main OS crash, the device will boot to this OS. eSOS will run pre-defined utilities and email the diagnostic results to the administrator. H/W Diagnostic Utility   Diagnoses the CPU temp, fan, voltage, HDD, CF. Email Utility   Saves the diagnostic result to a file and mails it to administrator. Telnet / FTP Server   Provides remote connection and file upload space. Configuration Utility   Network and e-mail address setting. (from SOM new brochure, please contact Smart or Mr. Hsieh for source file)