Dell Optiplex GX270 Desktop Computer

There are two common causes for the OptiPlex GX270 to not boot up. The problems are well documented and may or may not be covered by Dell's warranty program.

The first, and probably the most common reason a OptiPlex GX270 will not start or boot up is a power supply failure. The failure is indicated by a flashing amber light on the on/off button.

Fix: Replace the power supply. The power supply is not covered under warranty beyond the initial warranty or extended warranty. You will need a Dell power supply.

Another common cause of the OptiPlex GX270 not booting is bad capacitors on the motherboard. The capacitors have a manufacturing defect and the problem is easy to detect.

Open the case and inspect the capacitors for leakage and discoloration. This defect is covered by Dell and they will replace the motherboard. Just call Dell's warranty department.

Click the image below to see a close up of defective capacitors on a OptiPlex GX270 motherboard.

Current Version: A07
Release Date: 7/21/2006

Fixes and Enhancements:
1. Add support for newer processors
2. Added keypad number key checking for flash password
3. Improve 16-bit flash code
4. Improve USB keyboard detection
5. Improve USB enumeration for multiple USB devices
6. Correct problems seen when CD-ROM boot is the first bootable device in boot sequence.
7. Add support for Force PXE on Next Boot Token

Download BIOS version A07 at Dell Support Site

DC power supply wattage:

*Small form-factor computer: 160 W
*Small desktop computer: 210 W
*Small mini-tower computer: 250 W

Note: The power supply for the Dell OptiPlex GX270 is known to have issues. If your GX270 will not boot up and the power light is amber, check the power supply and the capacitors on the motherboard/system board.

Problem: You are trying to use a USB keyboard and or mouse on your Dell OptiPlex GX270 and the computer will not recognize them.

Solution: Check to make sure that you have the most current BIOS version. If BIOS version A07 is not installed, your GX270 may not recognize the USB devices.

Make sure that the USB Controller is turned on in the BIOS. The USB controller is located under the Onboard Devices. To access the BIOS, keep pressing F2 while the computer is booting up.