never mind what i wroite above I started my system after work and now its back to 56 MB per / sec in win 2k3 sp2.I will have to look in to it later when I have some time off.

This is a long story I have a WINFAST 761GXK8MC-RS mobo that i have dual booted with win xp sp2 and server 2k3 sp2  in december 2007 using nlite v 1.2 and the current driverpacks then available

in  jan 2008 all of my sata drives would have a tranfer rate of 50 + MB per / sec in win xpl

in  jan 2008 all of my sata drives would have a tranfer rate of 25 + MB per / sec in win 2k3 sp2 .


Last dec 2009 I added a 500 gb seagate ST3500630AS H D to the onboard sata conecctor and now server 2k3 sp2  sees it as 4500 KBPS I am un certain as to the cause but I am starting here as the drivers look different from one os to another