The power switch checks ok Also all the power supply voltages check ok. The 
diagnostic LEDs on the back panel are not lit.  Leads me to think it must be 
the CPU.  So I'll look for one.
----- Original Message ----- 
From: "Thomas Mayer" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, December 24, 2006 11:44 PM
Subject: Re: [PCBUILD] rebuilding a Dell


> It could be the CPU. However, there are a couple of other components to 
> check: the data cable to the HD and the case power switch. You likely have 
> an extra data cable. The motherboard/case wiring can be temporarily reset 
> for testing so that the reset button acts as the power button since they 
> are both momentary switches. Also, check that the CPU fan is working.
>
> After that comes the CPU, especially if you have to purchase a new one. If 
> you can, try the questionable CPU in a known good system.
>
> Merry Christmas!
>
> Tom Mayer
>
> Russ Cox wrote:
>> There are no expansion cards and the mouse and keybpard are my test 
>> units. Is it likely that replacing the CPU would be the final solution. 
>> I don't think there are any other active elements in the computer after 
>> replacing the power supply, motherboard, and memory. If i replace the CPU 
>> all the active elements would have been replaced.
>>
>>> Sorry to have forgotten. It also wiped out the keyboard.
>>>
>>> Tom Mayer
>>>
>>> Thomas Mayer wrote:
>>>> I ran into a power supply failure that also took out the motherboard 
>>>> and mouse.
>>>>
>>>> Tom Mayer
>>>>
>>>> Russ Cox wrote:
>>>>> I have a Dell Dimension 2400 that was damaged by a nearby lightning 
>>>>> hit. No apparent damage but nothing works.  I figured the likely 
>>>>> failures in order of probability is: 1. power supply; 2.motherboard; 
>>>>> 3. CPU. So I tried another power supply - no success. Then I replaced 
>>>>> the motherboard - power light and drive light come on but the HDD 
>>>>> doesn't run up. Also replaced the memory. Replaced the HDD, still no 
>>>>> success. So the only thing left that I can think of is the CPU.  Is 
>>>>> there something else I should check out? I realize this may be an 
>>>>> exercise in futility, but it's a learning experience.
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>>
>
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