Question about Gateway 4525GZ Notebook

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Operating system & harddrive not found

I have a Gateway 4525 GZ notebook that I've had for about three years now.The computer has always run & worked excellent.Recently I got the blue screen then I ran the XP disc & repaired the problem.About a week later I went to turn on the computer & got operating system not found message now i put the XP disc in again to repair the problem again & windows setup can't find the harddrive now.I took out the old harddrive & installed another one and when I went to install XP on it I got the same message harddrive not found.I've taken apart the laptop & cleaned everything I could & then the dvd drive wasn't powering up. I removed the hard drive again & reinstalled it then the dvd drive worked again. I really don't know what's going here and any help would be greatly appreciated. Thanks for any help in advance.

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  • Nicholas bor Oct 26, 2008

    Yes I did & i still get the same message.When I'm in the bios menu the hard drive isn't there. It says primary master none secondary master my dvd drive. when I click on primary master it says type:auto & at the bottom where it says hdd firmware version there is nothing but dots & lines.

  • Nicholas bor Oct 26, 2008

    I also get this message now realtek rtl8139 ethernet check controller cable.

  • Nicholas bor Oct 26, 2008

    I was afraid it would come down to replacing the mother board because
    i tried almost everything I could think of. Thanks for your help.



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Did you remember to enter the BIOS setup and change the boot drive so the system would look to the (optical) drive in which you have put your XP disk? In most cases, you must tell the system where to look for boot files and with a new hard drive, there are no files to find.

If you don't have any malware defense installed yet, and can again get it up and running enough to go on line, I would recommend all of the following:
- AVG Free Grisoft Home Page - Spybot S&D Spybot Home page - AdAware Lavasoft Home Page
Basic versions are either free or ask for donations.

Posted on Oct 26, 2008

  • Steve Allison
    Steve Allison Oct 26, 2008

    If the BIOS can't see your drive, there is a good chance the integrated drive controller has failed.
    Unfortunately, I doubt seriously that the controller is a replaceable IC but rather part of a chip set and that would mean a new or refurbished mother board and there is a chance that those two functions are under the control of the same chip or chipset.

    A good illustration of how different devices may be interrelated can be seen here:

    Northbridge/Southbridge definitions



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