Anyone here experienced in restoring old Thinkpads? I got a 380XD in alright condition, it boots and works fine but it's slow as fuck so I'd like to do a clean install. Apparently these have heatsinks and fans so judging by the last date timestamps on it it's been a good 2 decades without a cleaning.

Any tips or guides? For taking it apart and cleaning I mean. Also it has a I think 2.5 inch IDE drive, can I put a SATA adapter there?