• Troubleshooting toolsS4810-ON system informationTo view your system information; for example, the model, part number, serial number, and service tag, follow these steps.1 Reboot your system and enter U-Boot mode.2 Enter the sys_eeprom command.Example of the sys_eeprom Commanddell_s4810_on-> sys_eepromTlvInfo Header:Id String: TlvInfoVersion: 1Total Length: 73TLV Name Code Len Value-------------------- ---- --- -----MAC Addresses 0x2A 2 65Base MAC Address 0x24 6 00:E0:0C:02:01:FDVendor Name 0x2D 4 DellProduct Name 0x21 8 S4810-ONPart Number 0x22 10 7590009602Serial Number 0x23 13 HADL127B20077Manufacturer 0x2B 1 1Service Tag 0x2F 2 123A1B2Label Revision 0x27 3 A00CRC-32 0xFE 4 0x4AF6A929Checksum is valid.Boot processesAfter the BIOS or U-Boot hardware verifications, POST tests run to verify the CPU and memory prior to booting the system software.After POST testing, there are three additional types of diagnostic tools you can use for testing your system.• Manual diagnostic boot process — To run additional testing, manually download and run the EDA tool. The EDA tool reports and logspass/fail results.• ONIE with EDA — EDA is installed; you do not have to manually download the tool. Select the diagnostic option at boot-up. You canrun this tool without a management interface.• Autorun EDA — EDA is installed; you do not have to manually download the tool. Select the diagnostic option at boot-up. You can runthis tool without a management interface. The system always launches EDA in Quick Test mode to verify the hardware componentsbefore loading the software. If there is a failure at boot-up, based on the EDA configuration, the software may or may not continue theboot process.POSTPOST diagnostics verifies system memory before the software loads. Test configuration parameters are saved in CMOS for the next boot-up.EDA, Quick Test ModeQuick Test mode runs basic device access tests for the system hardware to verify that the device is active and responding.In Quick Test mode, the EDA tool quickly tests if the hardware components are accessible. It confirms that the components respond toread access and in some cases, simple write access. Tests are read-only and non-destructive (except the memtool command, which doesallow read/write operations).ONIE diagnostics 7