Question about Dell Dimension 8400 power supply ** FREE ** (D8400SATA300W24PINB) Power Supply

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Dell Dim 8400 Issues

My 8400 Dell has been acting up for over a year now. After a fresh install it will run well, but after several days, it begins to run bad, and at times just either shuts down or re-boots on it's own. After several times of this, it begins to lock up and goes down hill from there. Then, if I do another fresh install, I go through the same thing again.

I have a feeling that there is either a overheating issue or the power supply is not regulating things properly.

Any ideas on what you may think is causing this. I have tried removing and replacing the ram and all other plugs, but it does not help.

Thanks, Steve
truthfinder@comcast.net

Posted by on

  • truthfinder Oct 13, 2008

    Nope, I tried it.......... Both hard drives are AOK. I beleive it's the power supply...... What do you think? Any other ideas......

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  • Dell Master
  • 1,183 Answers

Hi Steve,
The problem that you are facing is most likely because of bad harddrive. As you have already replaced the RAM. To confim the same , run a diagnostics on the Hardrive. You can run the same in two ways .

Check if have the utilitu partision still left on the hardrive
1. Tap on the F12 key 5 - 6 times when you see the Dell splash screen , before windows starts to load.
2. Select Hardrive diagnostics or IDE diagnostics

If the above is no there , look for the dell Rescouce cd
1. Boot the system using the dell Resource Cd.
2. Select 32 bit diagnostics from the menu
3. Run a custom test on the hdd.

If the hardrive fails , replace the same, otherwise try swaping it connector cable with the optical cable.

Thanks

Proton

Posted on Oct 11, 2008

  • Mandeep  Singh
    Mandeep Singh Oct 13, 2008

    If the hardrives, have passed the diagnostics , then you are correct in reaching the conclusion that the power supply is bad . Try reseating the 20 pin power connector on the mothereboard ie. jack is labeled as P1 also reseat the processor power input that is labeled as P2 .





    Thanks

    Proton

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Hi,
It not a common problem. The problem that you are facing is is beacuse of faulty motherboard. The blinking amber is caused , becasue the motherboard is not able to distribute the power signal to the devices . You can follow the link below to trouleshoot the problem if you are comfortable in opening the computer chassis

http://tinyurl.com/8mkpnm


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