On 10/22/2014 2:18 PM, jrmitchellj . wrote: > As an example of what I am talking about, a couple of years ago, I had a > film scanner, costing new several hundreds of thousand of dollars, fail. > The service tech came out and stated a box in the system had failed, and > would cost $6500 + labor to replace. I sent him home! > I pulled the box out of the system, opened it up to find a Pentium 5 SBC, > and several servo control boards (that I looked up on the internet). On > close inspection, I found that the fan on the Pentium heat sink had > failed. I pulled the chip out of the socket, and it showed that the magic > smoke had leaked out due to excessive heat. I found one on Ebay, ordered > it, got for less than $7, delivered. > Installed it, put everything back together, and tested. > SUCCESS!
If you want the fan to not fail again, use a drop of silicone oil on its bearings. Silicone brake fluid is ideal for the job. It's essentially silicone oil with a touch of purple dye and possibly some corrosion inhibitors. It has much better heat resistance and will not dry out due to evaporation of VOCs. --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
