se@comp.lancs.ac.uk (Steve Elliott) (10/08/90)
We have recently installed 5 SparcStation SLCs, each with a 104MB desktop disk drive. The fans in the disk drives emit a nasty high pitched whine. When all 5 are running at the same time the noise in the lab is intolerable. Has anyone else come across this problem? Do Sun know about it, or better still, do they have a solution? We had an engineer up here yesterday on another job and he had a look. He had heard that reversing the polarity of the cables to the fan would cut down the noise a lot. It did. The fan didn't work!!! We concluded that the noise is caused by air moving over the grille on the chassis, rather than the grille in the casing. I would be interested to hear from anyone else who has come across this problem. Steve se@uk.ac.lancs.comp