I can’t give you an answer from direct experience however….

Tech Report produced a review of ssd’s (including the X25-M) that used Windows XP Service Pack 2 with a 5.1.0.1022 AHCI driver and ICH7R south bridge chip. http://techreport.com/articles.x/16848/2

The review got criticised for using old hardware. Tech Report defended the use of ICH7R on the basis that whilst the die size has changed in later versions nothing much else has. I don’t know if that is correct, but no doubt someone will chip in if not.

Bottom line however is that on that particular set up the X25-M worked OK on the ICH7R.