Windows 7 supports TRIM even in IDE mode. However, to gain all benefits of Intel Solid-state drive (e.g. DIPM) i would recommend you to choose AHCI mode. Please keep in mind that you will need to reinstall windows (or do some driver tweaks) in order ...
This might have nothing to do with SSD drive. I've seen similar issues before on HDDs (e.g. http://www.bleepingcomputer.com/forums/topic130053.html )Is it possible to replace ssd with hdd just for testing? i think it's just an OS bug
