So I sold off my X58 for an upgraded SB rig.. quiet, power efficient, Mmmm. Running Win7 64b, everything is really snappy, except sometimes my PC hangs for about 30 secs, then 'catches up' suddenly and unlocks again. SATA6: C300 SSD S3(1): 1Tb (documents) S3(2): 1Tb (media, various program cache) ACHI Power Plan: High Turn HDDs to Sleep/Off: Never Now I've paid very close attention to what, how and when, with a focus on if it involves accessing the spinners on SATA3: When Win boots up, everything opens correctly, but first access of Firefox causes hang, from there it's fine Waking up after sleep.. again, first access of FF Occassionally when opening My Computer I have my cache folder for FF set on one of my 1Tb's.. occassionally after idling for 20 mins, accessing a tab again (re-opening cache maybe?) causes the hang Not often, but sometimes opening My Computer shows NO drives, not even C on SATA6.. the Explorer bar has tht loader bar (that's Indexing, right?) tht never fills up Trying to be a careful SSD owner, I dumped as many locations & functions onto the mechanicals. That's what leads me to believe this may be the SATA3 issue cropping up already - despite the 3-year degrade span that's claimed.