Originally posted by: dwcal
Originally posted by: Ghouler
they say compressed air, no vacuum, no water, but some people stick to their old ways, I have always vaccumed...using water on mobo seems crazy to me though.
Check
this thread
I think they say no vacuum because of static electricity. At work we have a special 3M electronics vac with static dissipative nozzles. At home I blow the dust to the bottom of the case and vacuum it up with the dustbuster.
Yep. Electronics vacs are OK, but probably overkill unless you do this regularly. Regular vacuums can generate static electricity that can fry components (unlikely, but possible).
If you have crud on there that compressed air won't get off, try a soft toothbrush and 90+% isopropyl alcohol (available at any drugstore -- ask at the counter to see if they have 99%). Scrub gently and it should come right off. Just make sure you give it a few hours to dry. If isopropyl doesn't work, you can try using a VERY small amount of 100% acetone ('nail polish remover' -- but make sure it's 100% acetone), but don't go crazy, because it can soften plastic and may hurt some PCBs.
As noted in that thread, you can also wash it with water (after unplugging and removing all components and the CMOS battery!), but you have to let it dry for *days*, since the water gets into all the little crevices between solder joints, pins, etc. and takes forever to evaporate.