Re: [OT] how to clean grime off old computer MB?

On Sun, Mar 09, 2008 at 01:44:33PM -0400, Douglas A. Tutty wrote:
On Sat, Mar 08, 2008 at 11:05:34PM -0600, Russell L. Harris wrote:
I have a couple of new-to-me old computers. They've been well used
in what looks like a normal office environment and they're a bit
grimey inside; not just dust that blows away. I figure that I
should clean that off so the dust doesn't act like a thermal
insulator but I'm unsure what to use, since air alone isn't doing
it. I don't want to remove e.g. the CPU from its socket. (P-133,
socket 7).

You need to remove all socketed devices, and especially the CPU.

Cleaning presents a danger to the aluminum electrolytic capacitors.
Some chemicals quickly penetrate the seals and ruin the capacitors.

Yeah, that's my concern. Boards are usually cleaned of flux after the
soldering with circuit-board cleaner, which presumably is safe for the
newly-soldered caps.

Newly manufactured boards are cleaned with Hydrogen Hydroxide. This has
been the standard board cleaning agent for quite a while. As it isn't
very effective on grease, it doesn't help you much, though it wouldn't
hurt to try.
--
Rob

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