Question about Dell Dimension 2400 PC Desktop

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Dell dimension 2400(5 yrs old) power button

My power button hardly works after I unplug it from the wall before a storm (yes it's off when I do that) I have to mess w/ it a bunch and push the button in slowly until it engages the green lights and you can hear the unit power up. Is there an easy fix or can I jumper around the button and wire it direct to by pass the problem and use the surge power strip as an on?

I would be greatfull for an advise re: this



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  • rimshotrfj Mar 01, 2009

    techigs64 Thanks so much for the response , I will try what you suggested





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You can trace back the wires from the power switch back to the motherboard circuit board. the leads which attach to the wires from the power switch can be disconnected from the power switch and manually shorted briefly with a screwdriver or such, and this will turn the computer on or off..

you should never use the switch to turn the computer off, you should shut windows down to turn the pc off.

Posted on Mar 07, 2009

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Sounds like a power supply issue to me. I have worked with Dell Dimension 2400's before and I have had to change the power supplies on them. This is the typical problem when you have the problem you are having. There is no way to jumper around this unless you go into the BIOS which on Dell is hitting F2 on boot up and going into the BIOS and then go to the power section, then find the setting for restore on power loss to last state or something like that depending on the BIOS type. That might work but I would still suggest checking the power supply. If you call Dell and tell them your problem normally they will send you a power supply tester to test the power supply to make sure that is the problem. Then you can replace it or you can pay them to replace it if you don't know how. Hope this helps.

Posted on Feb 28, 2009


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My dimension 2400 wont turn on it has a green light on the motherboard but wont boot up please help

What you can do is to try to open the casing and remove all the connections specifically the cables/connections from the power supply. Reconnect the cables and try it again. if still not, reconnect the memory modules and disconnect the connection/cable of the hard drive and give it a try. If that works, just do the same process and reconnect the cable back.

Note :
Ensure to unplug the computer first from the power before doing this. Once you have unplugged the computer from the power, press and hold the power button for 3-5 seconds. this will discharge all the remaining power that is stored on the capacitor.

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For this problem it only means that the Hard Disk of the computer is not being detected

Try doing the ff:
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Hope this will help

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Switch would not power

Most likely the power supply has gone bad.
Try unplugging it from the wall and then plugging it in again.
Next, open the box and disconnect all drives (hard drives and CDs).
Now try it. Does it start? If so, you most likely have a bad CD.
You can also remove the video card and try it. I usually do this thing in stages, eliminating each piece of hardware one at a time.
When you are down to just the CPU and memory and it still doesn't start, it's most likely the motherboard.

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