BIOS sees 3TB secondary hd as 801GB but work fine in Window 7, will that create any issues in the future?

moifa

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Feb 3, 2015
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I have a old HP xw8600 workstation, I recently installed a WD NAS 3TB harddisk as a secondary hard disk. I preformated the drive with GBT in NTFS format with another computer.

I have update to the latest BIOS, running at separate IDE SATA mode. BIOS only sees drive as 801GB, but in Win7 it shows up in 3TB. I heard that I need to run AHCI mode to get 3TB. I tried RAID with AHCI setting in BIOS but it won't even see my hard drives.

Although it can read and write to the disk fine in win7, but will this create any issues down the line when the BIOS doesn't see my drive to its full capacity?

Thanks.
 
Solution
BIOS appears to be affected by a 32-bit LBA limit. If the SATA driver in your HP's Windows installation is also affected by a 32-bit LBA limitation, then you have a data loss time bomb. When you write data beyond the 2TiB point, it will wrap to the beginning of the drive and trash your file system.
BIOS appears to be affected by a 32-bit LBA limit. If the SATA driver in your HP's Windows installation is also affected by a 32-bit LBA limitation, then you have a data loss time bomb. When you write data beyond the 2TiB point, it will wrap to the beginning of the drive and trash your file system.
 
Solution