From that information it's clear that you are installing this hard drive on
a motherboard that is 4 to 5 years old or older. Is that right?
The bios on the board can only read hard drives up to 32 gb. If you go the
the mb manufacturer's web site they may have a bios update for your
particular board that will allow it to read a larger hard drive size, though
it is doubtful that this will be the case.
You have three options.
The cheapest and easiest, but not the safest, is to go to the Maxtor web
site and download Maxiblast tools and run the install program. It will
install an overlay software program on the hard drive that will allow your
motherboard's bios ability to read the full size of the hard drive.
Sometimes the software can get corrupted. Should that happen you would not
be able to boot your disk and all the data on it could be lost.

The second route is the safest and that's to buy an additional hard drive
controller card that plugs into one of your PCI slots. This will allow full
use of the hard drive. You would plug your hard drive cable into the
controller card's connector after you install the software for the device
driver and that's it. One of the best known makers of these cards is Promise
though there are others.

The third route is to do nothing and just use the hard drive with 31 mb and
enjoy.

In all cases always back up your important data. Sooner or later we all
crash.

--
Jan Alter

or

wrote in message
oups.com...
there's a problem: the disk has 120 Gb but disk manag see only 31 Gb.
Is it a Bios problem?How Can I solve it?