Lost HD on reboot

Asked by christine

I am just learning Ubuntu, and Linux, so I do not know how to fix this problem. I left my machine on all day and when I came back, it was frozen. I pressed the restart key and now my system, even the BIOS, is not recognizing my Hard Drive. I am using a Live CD right now and my Device manager does not list it either.
My system is a Asus, CUSI-FX MB, an Intel 933MHz CPU, with 128Mb of RAM. The HD is a Maxtor Diamondmax Plus 40Gb drive.
I know this is an old system, but I have been trying to teach myself Linux for work, and have been storing some lessons on it.
Is there any way to get my data back or am I toast.

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Óscar Rodríguez Ríos (ingorr01) said :

Sounds like HD defeat. Probably, I've had very bad experiences with maxtor HD's, at leat 4 HD had defeat ( 1x40GB 1x80GB 2x200GB). Other option is the Maindboard's IDE controller.

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christine (christinel4t) said :

Apparently my power supply was going, and for some reason after using the Live CD my HD was detected in the BIOS again.

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Matthew Lange (matthewlange) said :

This has happened to me with various computers and various operating systems, I think the hard drive overheats, which causes the OS to freeze, and when you restart, you can't see it in BIOS.

Steps to take: Turn off computer, let it sit for half an hour, try again.

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