http://www.seagate.com/support/disc/utils.html

Reg48bitLBA for Windows XP SP1 and Windows 2000 SP3
Windows XP Service Pack 1 and Windows 2000 Service Pack 3 operating systems, or higher, are required to support ATA disc drives larger than 137GB. The registry setting EnableBigLBA needs to be set after the proper level service pack is installed.

If you use the traditional Microsoft Disk Administrator or Disk Management tools to prepare your drive or you need to check the status of the EnableBigLBA registry setting, you can use the Ontrack Reg48bitLBA utility to set or confirm if the setting is enabled.

以上節錄自SEAGATE官網，大意如下：
在XP SP1或WIN2K SP3或更新的作業系統中，必須安裝Reg48bitLBA以隻元130G以上的ATA磁碟機，這個登錄檔將設定EnableBigLBA，且必須在service pack 安裝之後進行設定。

如果你使用WINDOWS的磁碟管理來啟動你的硬碟或想確定EnableBigLBA的啟動狀態，也可以使用Ontrack Reg48bitLBA utility 來設定或確認EnableBigLBA是否已經啟動

簡單的說，就是抓這個：http://www.seagate.com/support/disc/download/reg_48bit_lba.exe
安裝之後會修改登錄檔以啟動48bit的LBA模式.....

其實我沒有這樣大的硬碟可以試，所以.........還請您當個白老鼠了~~~嘿嘿嘿
如果沒有用的話，再想別的辦法....