HP EliteOne 800 Maintenance & Service Guide HP EliteOne 800 G1 All-in-One - Page 198
Disable TXT in the Computer Setup F10, Red Power LED flashes eleven
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Activity Red Power LED flashes nine times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Red Power LED flashes eleven times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Red Power LED flashes eleven times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. System does not power on and LEDs are not flashing. Beeps 9 11 12 None Possible Cause Recommended Action System powers on but is unable to boot. 1. Unplug the AC power cord from the computer, wait 30 seconds, then plug the power cord back in to the computer. 2. Replace the system board. 3. Replace the processor. The current processor does 1. Install a TXT capable processor. not support a feature previously enabled on this 2. Disable TXT in the Computer Setup (F10) system. utility. 3. Reinstall the original processor. MXM thermal shutdown. 1. Clean the MXM graphics card heat sink. 2. Replace the MXM graphics card heat sink. 3. Replace the MXM graphic card. System unable to power on. Press and hold the power button for less than 4 seconds. If the hard drive LED turns white, the power button is working correctly. Try the following: 1. Replace the system board. OR Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on white then: 1. Check that the unit is plugged into a working AC outlet. 2. Open rear cover and check that the power button cable is properly connected to the system board. 3. Check to see if the 5V_aux light on the system board is turned on. If it is turned on, then replace the power button board and cable. If the problem persists, replace the system board. 4. Replace the AC adapter. 188 Chapter 10 POST error messages