Hello how are you........fonts led bilnk in orange color

i suggest you take it to a computer specialist

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

Hi, just pull out your memory card and clean it with an eraser. And insert it tightly again and don't forget to clean also the memory bank.

Hope it will help you.

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 athttp://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!

you have either one of 2 problems... your power supply is bad.. blinking orange light ??? or main board
try replacing power supply
is still blinking orange light then it is the main board

Try to clean the RAM and place it again in the motherboard.

You first need to make sure your memory is secure.

Reference the Power LED States
Dell OptiPlex and Dimension computers and Dell Precision workstations have incorporated the use of the multi-state power button LED as a hardware status indicator. The power button LED illuminates in two different colors and can also blink, which allows for indication of five different system operation states. (Table 1)
LED State
System State
Steady Yellow The power supply is functioning, but the system is not processing data. This may indicate an issue with the system board or CPU. Blinking Yellow The power supply is receiving power from the source but is unable to properly distribute it to the components. This may indicate a power supply problem. Steady Green This generally indicates that the system is functioning normally. However, if problems are detected with installed components, the system may initiate a beep code. Blinking Green The system is in a Standby ACPI state. Off The system power is off.

Your C5707 transistors in the monitor have failed. Suggest replacing all four with the Sanyo C5707 transistor. A common problem.

hi, does the three lights blink only after u connect it to a display card??if yes then check if any of the connecter pins are damaged, or check out the display card..bye let me know