emmo@moncam.co.uk (Dave Emmerson) (05/27/90)
In article <00937068.3DAFAF60@rigel.efd.lth.se>, f89ba@rigel.efd.lth.se writes: > [deleted] > Is grounding of the drives necessary or can I leave them as > they are? > It depends on how the drives are mounted, if they're bolted in, they're already grounded. The chassis is already connected to mains earth, and... > I suppose that the motherboard has a connection to ground > through the the power supply cords, but should it also be > grounded, for example at one of the screws that holds the > board in place? > .. the motherboard will make a connection between ground and mains earth via one or more of the board mounting screws, as you suspected. There is normally a bypass circuit on the drive to connect 0V ground to the drive's chassis, some drives have a link to allow direct connection. If you want to be sure, you can add a lead yourself, you need a m4 eyelet and a 4.8mm 'faston'. The objective is to screen the drive's circuitry from outside interference (and vice versa). > If I bought a new case for my components, would I get such > hardware as grounding wires? > If its well made, but don't count on it, especially if the drive is supposed to be bolted in, as opposed to mounted on plastic runners. Dave E.