I've tried to use this guide to attempt to allow me to use the F6 floppy method to install XP Pro on a new system. Motherboard Asus P5b-vm se (has the ICH8 on board) 2 Gig OCZ DDR2 SDRAM (memtest passes OK) Seagate 320 Gig SATA HD When I attempt to install Win2k (just because I like it!), it detects the partitions I made using Partition Magic but fails to format the C: partition. When I attempt to install WinXP, it doesn't even detect the partitions and reports a 131,xxx Meg drive. The installation continues and I can run it. To use the rest of the 320 Gig, I resize and create other partitions. When I reboot, WinXP doesn't get started and reports a corrupt disk. If I try to re-install I get a 131,xxx Meg drive. I tried to use your guide to add the "Testmode" drivers. Booting into Ubuntu 8.0.4 and use "lspci" to determine what pci devices are present, I find that there's a 4-port SATA controller with vendor:device of 8086:2820 and a 2-port SATA controller of 8086:2825. I download the Intel documents for the ICH8 and again using "lspci" get some dumps of the configuration space for the 8086:2820 controller. This device SUPPORTS AHCI and in fact has detected the presence of a device on port 1 (where I connected it). I then modify "Fernandos fixed files" to find the 8086:2820 device and do the install of the textmode drivers.WinXP reacted the same way as without the changes. Digging deeper into the configuration registers, I see that the MAP register at offset 0x90 is set 0x00 indicating IDE mode. This is what the BIOS thinks is the best mode (and probably is "compatibility" mode). Another field in this register is 0x00 as well and indicates that AHCI or RAID (????) may be selected. I've had no success with this system but I do think that Asus needs to allow the selection of AHCI/IDE/??? for this register. Then I think I might even be able to use this system! Am I on track here or am I "off in the weeds"? Herb