Hard Drive not recognized after motherboard replaced on XPS

November 12, 2012 at 10:04:22
Specs: Windows Vista, Intel Core 2 Duo

I have a Dell Dimension XPS 420 purchased 12/2005. The motherboard failed and I replaced it. I also replaced the power supply. When I turn on the machine it won't boot to windows but I get a black screen with prompts for diagnostics and set up etc. Diagnostics show the only problem is that the hard drive is not recognized. I can get a C: prompt and have seen directories on the hard drive so I think it is not compromised but it doesn't boot. I also could not recover previous settings from the hard drive. I have a Windows Installation disc and a disc full of the drivers from the hard drive but I am concerned that will delete the data from my hard drive. Is there some easy fix for this?

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November 12, 2012 at 10:25:25

The hard drive is recognized by the system but windows can't boot because of hardware changes(motherboard). If u have the original disc u can perform a repair but i will not recommend that.
Get this Linux puppy and burn it to CD or DVD and boot from optical drive, move your important files from C drive to another partition or external drive. Now u can restore(if u have recovery partition) or wipe C drive and install windows without loosing the files.

You know the real meaning of peace only if you have been through the war.

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November 12, 2012 at 11:51:54

The hdd is setr to either AHCI or IDE in the bios. If the bios was previously set to either on previous motherboard then you need to set it at the same setting in the bios of this PC otherwise it won't work.

If the previous motherboard is not the same model or brand as current the also it will not boot. For example, if previous motherboard was Intel (Nvidia) and this motherboard is ATi (AMD) then there is a compatibility problem.

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November 12, 2012 at 13:30:17

The motherboard is the same model, so how do I change the Bios for either AHCI or IDE?

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November 12, 2012 at 18:06:45

If the problem is with the bios settings then check the manual for the proper way to set up the hard drive. If you don't have it you should be able to download it from the support page for that model.

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