Question about Dell Dimension 2400 PC Desktop

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My dell dimension has all green lights but the d is orange

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Dell Support > Dimension 2400 desktop computer > Service Manual >
Advanced Troubleshooting.

I'm going to change up my usual method of providing a solution for a Dell
product, and finding information on their support website.

Navigation around Dell's Support website leaves a lot to be desired.

Start with,

A) Type - Dell Support in your browser search bar, and left-click on the
search icon

B) This is where it will take you,

C) Now left-click on - Start Here, in the green button, under the heading -
Support for Home Users

D) Under the - Support Options heading on the left side, go down the list,
and left-click on - Manuals

E) Give it a couple of seconds, and the - Get Manuals for Dell Products,
window will come up.

F) Under the middle heading - Choose a Model, left-click on - Select Model
in the green button

G) Now click on - Desktops

H) Click on - Dimension

I) Scroll the list down, click on 2400, then go down, and click on - Confirm

J) Click on - English

K) Under the blue HTML Documents heading, left-click on View, to the right of
Service Manual

You are now here,

In the list left-click on Advanced Troubleshooting

Look at the chart under the heading - Diagnostic Lights

"Another failure has occurred"

Going down the chart you see the possible failures that can occur.
Indication is to "Ensure that the cables are properly connected to the
system board, (Motherboard), from the Harddrive, CD drive, and DVD drive."


Are you aware of how to do this?
How to open your computer case, alleviate Static electricity from your body
BEFORE, you reach inside your UNPLUGGED from power computer, and
also know what cables they are referring to?

Go back to the main menu.
Left-click on Removing and Reinstalling Parts
Left-click on - Drives

Adding or Replacing a CD or DVD drive, shows you where the drive/s are
Replacing a Harddrive, shows you where the Harddrive is located.

The Harddrive, and the optical drives, (CD/DVD) are IDE.
Also known as PATA.

They use this type of interface data cable,

Must be plugged in tightly, and in the correct orientation.

They use this type of power cable, (standard 4-pin Peripheral power cable)

This power cable must be plugged in tightly to those peripherals also.
(Harddrive's, and optical drives are Peripheral components)

Anti-Static Precautions:

Your body carries Static electricity.
Static can fry out (Short Circuit), the delicate hardware components inside
a computer.

Computer Unplugged from power, computer case open, working on a table,
TOUCH the metal frame of the open computer case, to relieve your body of

If you leave your computer in the middle of working on it, upon your return
Touch the metal frame again.

See if the cables above are connected tightly. If there is ANY doubt, it doesn't
hurt to unplug them, and reconnect them.
After you have done so, plug the computer back into power, WAIT 1 minute,
turn the computer on.

Suggestion is to leave the computer case open at this time, and Do Not reach
inside. You are testing. If there is a chance that children may access your
computer before you are done testing, then close the computer case.

My suggestion to leave the computer case open, is that you may have to go
back inside, if the above does not cure your problem.

Would like to know your findings. You can post back in a Comment.

Posted on Jul 21, 2010


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1 Answer

No beeps but lights A B are orange

....and lights C, D are green, and your computer fails to boot up ? (you do not say) (on Dell PCs, which I don't have, the LEDs are usually described as yellow and green. There are four of them on rear of the PC ?).
First go to this webpage:
Product Support
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Also read this manual - the only one available specifically for Dimension 4100 - especially the section on safety. If you have to open the case remember to properly earth yourself.
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