I have a Dimension 3100 everytime I turn on tower an orange light comes on Please help???????

No bleeping sound? Then I would say that your RAM is no good.
If the coolers don't run I'm afraid that the processor is faulty.
Any more I cannot tell you right now, sorry.

No, the light WOULD come on if it was a Power Supply problem.

1) If ALL of the LED lights on your computer were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts.

3) A typical Processor uses from 51 to 125 Watts. Depends on what Processor it is.

Dell Dimension 3100 desktop computer?
An Intel Pentium 4.

Intel Pentium 4 model 640.
Can operate up to a frequency rate of 3.2GigaHertz. (3.2GHz)
Fits in a Socket 775 processor socket. (Also know as Socket T)

http://en.wikipedia.org/wiki/List_of_Intel_Pentium_4_microprocessors#Prescott_2M_.2890.C2.A0nm.29

Can use up to 84 Watts.


You have enough power to light that LED light, but not enough power to turn the Processor on.

Dell Support > Dell Dimension 3100 > Service Manual > Advanced Troubleshooting > System Lights,

http://support.dell.com/support/edocs/systems/dim3100/en/sm/adtshoot.htm#wp1124612

"Power Light - Blinking yellow - A power supply or system board {Motherboard} failure has occurred"

Dell Dimension 3100 desktop computer Service Manual, (Free from Dell Support),

http://support.dell.com/support/edocs/systems/dim3100/en/sm/index.htm

Click on Removing and Installing Parts > Power Supply

For additional questions please post in a Comment.
Regards,
joecoolvette

Blinking amber (orange) indicates a problem with the power supply inside the computer. If the system cannot boot and there is a solid amber light, this could indicate a problem with the power connections for the CPU on the system board (see "Power Problems" in your Owner's Manual).

Try a different keyboard. If that does not help, then you have a serious problem:
* power-supply not sending all the voltages (5V, 12V) that it should be sending;
* video-card loose in its socket;
* video-card malfunctioning;
* RAM loose in its socket(s);
* RAM that is malfunctioning;
* problem with the motherboard.

If you don't know how to trouble-shoot each of the above problems, it's time to take the computer to a qualified technician, for proper analysis & repair.

If the power LED on the Tower is blinking amber, then most likely the power supply in the tower is failing. Replace the power supply.

According to me your PC's windows xp or any ther version may have corrupted.
You need to install new windows for your computer.


THANK YOU for contacting fixya.com

If you are getting an orange light on the motherboard the power supply is not the point of failure. Its good to power off the computer when not in use. it will not only save power but also reduce depreciation to the hardware due to heat. Getting back to the issue. Check the status of the power light on the tower. if it is blinking try to reseat the memory power connectors on the motherboard and any PCI cards and video cards. If reseating all components does not help try powering on the computer with the parts discoonected, If still no go it is a possible motherboard failure.

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That flashing amber light is usually a sign the power supply is failed or is failing. I would suspect the power supply is the problem in yours. It is the better of the two problems connected with the flashing amber light..the other is motherboard is failing. Arrrr!
hope this helps (it takes a standard- oh say 350 watt 20-24 pin power supply unit.)
Hope an answer helps.
Please leave rating, thankyou

try to check the cable connection between the monitor and the tower. what is the color of the LED light on the monitor?

Did you checked whether the CPU / tower is turned on.. press some keys on your keyboard to make it active.

This might looks funny but it works all the time :)