Dell XPS 8500 amber power light

delosrec,

Product not tested for Windows 10 upgrade

Dell is not testing or developing Windows 10 drivers for this product. If you choose to upgrade, some features, applications, and connected devices may not work as expected.

For an amber colored power light  below is information.

Steady Amber System is in standby.

or

This is a system fault error condition, including the power supply. Only the +5VSB rail on the power supply is working correctly. Press the power button to bring the system out of standby mode.
Ensure all power cables are securely connected to the system board.
Ensure the main power cable and front panel cable are securely connected to the system board.
A NOTE indicates important information that helps you make better use of your computer. NOTE:
If the system was turned off abruptly, you need to disconnect and plug in the AC power cord, then turn on the system. Otherwise, you may see an incorrect power LED state.

Thank you much Jesse. After securing all cables and pulling out CR 32 small round battery and put it back in I was able to start the PC,  no more Amber power light issue. However now I'm back to my original issue wish is 'no boot device available' during start up. Already changed bios by pressing F2 for utility setup.  Do you have any ideas, I really appreciate it?

delosrec,

Check the bios settings. Information below.

The XPS™ 8500 is offered with UEFI (Unified Extensible Firmware Interface). It is a specification detailing an interface that helps hand off control of the system for the pre-boot environment (i.e.: after the system is powered on, but before the operating system starts) to an operating system, such as Windows or Linux.

UEFI provides a clean interface between operating systems and platform firmware at boot time, and supports an architecture-independent mechanism for initializing add-in cards.

NOTE:

The default Boot Mode is set to UEFI and the operating system is installed in the UEFI Mode from the factory. The System will display the following error if the Operating System was installed in UEFI Mode and the Boot Mode has been changed to Legacy or Vice Versa.

 No Boot error message due to wrong Boot Mode.
To correct this error, The user needs to change the Boot Mode in the System Setup from Legacy to UEFI Mode.

How to fix a no boot caused due to wrong Boot Mode set in System Setup?
The System will display the following error if the operating system was installed in UEFI Mode and the Boot Mode has been changed to Legacy or Vice Versa.

Image: No Boot error message due to wrong Boot Mode. Changing the Boot Mode in System Setup to UEFI
Restart / Power on your computer.

At the first text on the screen or when the Dell™ logo appears, tap until the message Entering Setup appears.

Boot Mode will be listed under Boot.
Select UEFI using the arrow keys to navigate and press enter.

Save and Exit the System Setup.

How to install windows in UEFI Mode?
Installing Windows in UEFI Mode
Restart / Power on your computer.

At the first text on the screen or when the Dell™ logo appears, tap until the message Entering Setup appears.

Boot Mode will be listed under Boot -> Boot Priority.
Image: Boot Menu in System Setup.
Select UEFI using the arrow keys to navigate and press enter.

Image: Boot Menu in System Setup.
Set the Boot Priority to CD/DVD as the 1st Boot Device. Save and Exit the System Setup.

Reinstall Windows as normal.

Jesse, thank you once again for your feedback...

My Boot Mode in the System Setup has always been UEFI Mode.  

DELOSREC,

You can also contact Dell Support at 1-800-624-9897 for phone support if needed.