[quote name='Joshuacat' date='Jun 13 2005, 01:55 PM']yanowhiz:
Please see the following support page from WD.Western Digital Support
How can I determine if my system has 48-bit LBA-compatible Basic Input/Output System (BIOS)
The full capacity of EIDE drives larger than 137GB (128GB binary) is not recognized in Windows 2000/XP.
The Windows Operating System, Motherboard BIOS, or PCI IDE controller BIOS does not currently support 48-bit LBA (Logical Block Addressing).
48-bit LBA support is necessary for drives larger than 137GB (128GB binary). The following conditions are necessary for the correct functioning of 48-bit LBA support in Windows 2000/XP:
* Windows XP Service Pack 1 (SP1) or Windows 2000 Service Pack 3 (SP3) must be installed for Windows or a registry key must be manually added to Windows' Registry. For information about Windows XP Service Pack 1, see Microsoft Article 322389 or for Windows 2000 Service Pack 3, see Microsoft Article 320853.
* The system must have a 48-bit LBA-compatible Basic Input/Output System (BIOS) installed. This includes EIDE controller card BIOSs. Please determine with the computer, motherboard, or PCI IDE conntroller manufacturer if this hardware supports 48-bit LBA.[/quote]
Edited by yanowhiz, 13 June 2005 - 01:17 PM.