Dell Latitude 7230 Rugged Extreme Tablet Service Manual - Page 101
Real-Time Clock (RTC Reset), Recovering the operating system, RJ45 LEDs
View all Dell Latitude 7230 Rugged Extreme Tablet manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 101 highlights
Table 23. System-diagnostic lights (continued) Blinking pattern Amber Green 3 6 3 7 4 1 4 2 Problem description Suggested resolution Flash corruption detected by ● SBIOS. Press power button for over 25 seconds to do RTC reset. If problem persists, replace the system board. ● Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button 3~5 seconds to ensure all power are drained. ● Run "BIOS recovery from USB", and the instructions are in the website Dell support. ● If problem persists, replace the system board. Timeout waiting on ME to reply to HECI message. Replace the system board. Memory DIMM power rail failure CPU Power Cable Connection Issue NOTE: Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Nums-Lock), Power button LED (without Fingerprint reader), and Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System Performance Check diagnostics. RJ45 LEDs The Latitude 7230 Rugged Extreme Tablet RJ45 port has double-LEDs on the either side. ● 10 Mbps-Green ● 100 Mbps-Orange ● 1 Gbps-Green + Orange ● Ethernet activity indicator = Yellow flashing Real-Time Clock (RTC Reset) The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell systems from No POST/No Power/No Boot situations. The legacy jumper enabled RTC reset has been retired on these models. Start the RTC reset with the system powered off and connected to AC power. Press and hold the power button for thirty (30) seconds . The system RTC Reset occurs after you release the power button. Recovering the operating system When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell SupportAssist OS Recovery. Troubleshooting 101