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Recently I was gifted a Dell XPS 710 tower running WinXP SP3. It was running fine until today when I restarted and received a blue screen and the error "unmountable boot volume". In order to fix this issue I've attempted to boot from the Windows XP CD and run chkdsk. However when I attempt to boot from the CD drive I get a "Boot Device not Available" error. Next I made a bootable USB flash drive, but receive the same error as the CD drive. The BIOS recognizes the CD and flash drives, and they appear in the boot device list, but neither will boot. I've attempted to resolve this by re-arranging the boot order in the BIOS and switching IDE channels/setting jumpers on the drives themselves, to no effect. I cannot move the hard drive to another machine because the XPS is the only one that supports SATA drives.

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Test your memory. –  Moab Dec 29 '10 at 1:34
    
How would you suggest I do this? The XPS won't boot any drive (HDD, Optical, USB, Floppy) and the memory is not compatible with my other machine. –  WilliamKF Dec 29 '10 at 2:08
    
You could start by removing all but one of the DIMMs and seeing that doesn't work. If it doesn't, try a different one just incase that was the one that was bad. Also disconnect anything that isn't needed. –  vcsjones Dec 29 '10 at 4:13
    
No luck with the memory, nor with disconnecting unneeded components. –  WilliamKF Dec 31 '10 at 1:40
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