I have Windows XP Pro service pack 1a, and a Seagate
SATA 160GB hard drive running on a current bios and a
Pentium 4 3GHz chip. Windows only recognizes 128 GB
which I think is odd considering the above components. I
went to the knowledge base (303013) and it told me to
check that my atapi.sys file was a certain version (it
was not, so I downloaded and installed the "hot fix"
wizard, restarted the computer, and.....nada...127GB
capacity is it). If I do a serach for this aapi.sys file
it shows it has been updated to the new version. I went
to Device manager and checked the hard drive driver
version...I am not sure if it is related to the atapi.sys
file, but it is the earlier version that atapi.sys used
to be prior to updating it with the hot fix. Further, my
bios shows a 160GB capacity for the drive under Standard
CMOS settings. I tried to run Disk Managers rescan
feature under Windows XP, which had no effect. I think
this is the so called 48 bit LBA problem, bu with sevice
pack 1a and a bios that sees the full capacity of the
drive, plus the microsoft "hot fix" I do not understand
why windows still only sees 128 GB.

I started with Seagate's tech support, but they are
saying it is a problem under Windows XP...so....

Any help would be much appreciated!

James

Hello

Give this a try

How to Enable 48-bit Logical Block Addressing Support for
ATAPI Disk
Drives in Windows XP

http://support.microsoft.com/default...b;en-us;303013



Alvin


James wrote:

> I have Windows XP Pro service pack 1a, and a Seagate
> SATA 160GB hard drive running on a current bios and a
> Pentium 4 3GHz chip. Windows only recognizes 128 GB
> which I think is odd considering the above components. I
> went to the knowledge base (303013) and it told me to
> check that my atapi.sys file was a certain version (it
> was not, so I downloaded and installed the "hot fix"
> wizard, restarted the computer, and.....nada...127GB
> capacity is it). If I do a serach for this aapi.sys file
> it shows it has been updated to the new version. I went
> to Device manager and checked the hard drive driver
> version...I am not sure if it is related to the atapi.sys
> file, but it is the earlier version that atapi.sys used
> to be prior to updating it with the hot fix. Further, my
> bios shows a 160GB capacity for the drive under Standard
> CMOS settings. I tried to run Disk Managers rescan
> feature under Windows XP, which had no effect. I think
> this is the so called 48 bit LBA problem, bu with sevice
> pack 1a and a bios that sees the full capacity of the
> drive, plus the microsoft "hot fix" I do not understand
> why windows still only sees 128 GB.
>
> I started with Seagate's tech support, but they are
> saying it is a problem under Windows XP...so....
>
> Any help would be much appreciated!
>
> James

after doing that, you will have to reformat, though.

48bit lba (over 128GB) didnt come out until sp1. if you
do not have an sp1 cd, you can't use the full capacity
unless you do 2 partitions. if you don't have the sp1 on
cd, you can slipstream (do a search) to make an sp1
install cd.