Showing results for 
Search instead for 
Do you mean 
What's DOS?
Posts: 1
Registered: ‎10-27-2011
Location: Maryland
Message 1 of 2 (618 Views)

T420 Dual Boot Trouble 7 & XP

I have a Think Pad T420 with dual boot option of Windows 7 Pro and Windows XP Pro both 32-bit. However for me to boot into Windows 7 I have to set the SATA configuration in the BIOS to AHCI Mode, but that will cause the XP to BSOD with the error of unable to detect hard drive. I change the SATA configuration to Compatibility and Windows XP can boot successfully but Windows 7 BSOD with the same error. I cannot seem to find the right driver for the AHCI chipset for Windows XP. If anyone could offer any assitance, that would be great.

Posts: 9,456
Registered: ‎12-26-2009
Location: CA
Message 2 of 2 (593 Views)

Re: T420 Dual Boot Trouble 7 & XP

It'll be the Intel Rapid Storage drivers for XP to work in AHCI mode.
W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
Top kudoed Authors