I get a blinking orange light om optilpex gx150, no power up

Blinking amber usually means power supply or memory if you changed the power supply I would change the memory

See


http://h50146.www5.hp.com/lib/doc/manual/workstation/xw6400/364898-001.pdf



Page 110 - M/B or Processor fail.

OPERATING SYSTEM. That would be Windows.

You are in BIOS Setup, and shouldn't be in there.

Computer OFF. (Press the Power On button, and hold it for 10 seconds until the computer turns off; if it is on)

Press the Power On button, and hold it in. Hold for a count of 10 seconds. let go. Do this same procedure 2 more times.

If the Power On LED light blinks, when you press the Power On button for the third time; hold for ten seconds, let go; do it again.
Keep pressing until the Power On LED light doesn't blink on.

This resets CMOS Error Codes, and resets BIOS Setup back to the factory default settings.

Operating system error is solved by installing the Restoration Disk/s, and when asked choose Repair. (Non-Destructive Installation)
If this doesn't solve the problem, you have a bad harddrive data cable, or a bad harddrive.

Regards,
joecoolvette

It sounds like a power failure.
If it is plugged into a surge protector, try resetting it. In the Dell manual, it says, "if the power light is blinking amber - The computer is receiving electrical power, but an internal power problem might exist. Ensure that the voltage selection switch is set to match the AC power at your location (if applicable). Ensure that the processor power cable is securely connected to the system board (see page 73)."
There is another thread on FixYa that might be of some use: http://www.fixya.com/support/t274632-dell_gx150_power_light_flashing_orange.
Finally, I checked a Dell forum and found this discussion: http://en.community.dell.com/support-forums/desktop/f/3514/t/17794576.aspx.
If you do need to replace the power unit, I found a replacement part at http://www.discountelectronics.com/index.php?l=product_detail&p=2168.
If you are not comfortable replacing the part yourself, you can use a PC repair service, such as the Geek Squad. It might be worth getting a second opinion.
Thank you for using FixYa!

It is your board problem try replacing it.

my dell GX 620 pc show orange light and refuse to boot up

You first need to make sure your memory is secure.

Volto is wrong.

http://support.dell.com/support/edocs/systems/inspd530/EN/OM/solving.htm#wp999606

Hello! Try this:
1. Unplug the power cord

2. While pressing the ON button, plug the power cord back in.
The power light should flash an orange/yellow color.
Continue pressing the ON button, and press the RESUME button 4 times. The light changes every time you press it.

3. Release both buttons, and restart the printer.

The printer should now stop blinking and operate as usual.
I hope this works for you. OMS

depends on how many times the orange light blinks also when you replaced the lamp did you do a timer reset? you can find alot of information on how to trouble shoot this www.infocus.com/support