|If there is a BIOS update that will allow 48 BIT LBA compliance you need to get it from Dell. |
Go to the Dell support site and enter your service tag number off the case. Look for any BIOS updates and read what they were for.
I doubt you will be able to update the BIOS to use that drive but it is worth investigating. I might add that there is some risk involved with flashing the BIOS. If something goes wrong your motherboard will quit working.
If no BIOS update is available then you can buy a controller card that installs into an empty PCI slot that will allow you to use the 160GB drive. The controller card will allow you to use any drive size.
Look at the link below for a controller card.