Dell optilex gx270 won't boot

An Amber blinking power button indicates a low voltage problem. This can be caused by a defective power supply or a defective motherboard.
Remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged.

check capacitors,if the power light is orange then there is a motherboard problem,also check ram

I am not sure this will help you or not, since you didn't mention the Operating System installed on your Pc, it's not possible to give you the specific/direct link. Anyway here the link for xp drivers..
click here to open the page
Open the page and click on the "external mirror 1"
If this ins't the one you are looking for, please let me know.
Good luck.
Thanks for using FixYa.

it is the problem of resolution use higher graphic end monitor lower down to the resolution like 1024x786 pixels and then connect it to your Dell OptiPlex GX270 PC Desktop

Does anything show up on the screen when you access your BIOS?
Have you tried a fresh install?
Are there two video adapters installed (one integrated and the other in the AGP slot?

I think you should just reload the operateing system. I had the same problem and couldn't fix it

,luke

Check motherboard for bad capacitors. I had the same problem and when i had bad capacitors replaced everything is ok.

It turns itself off when there is something wrong with it. You can check the system events from the bios menu why it does that. When it doesn't boot at all check the abcd lights at the back.

Try to check connections between the monitor and the System Unit or what they called CPU. Turn on the computer you must hear 1 beep means the computer start normally. if you haven't, try taking out any new installed hardware but not the video card if you don't have onboard video device and turn on your computer again.. if problem still exist keep in touch.. TY

HOPE I CAN HELP

MY OPTILEX GX270 AUDIO DRIVER NOT INSTALL WINDOWS XP.
I FORGET MY SOUND DRIVER NAME.

KINDLY SOLVE THIS PROBLEM.