I have no data, but it seems unlikely... Fans are mostly plastic, and presumably don't have much to keep magnetic fields contained inside the rotor. (Although your problem going away with only about a 1/2" (13mm) separation says there isn't much magnetic leakage problem on a fan anyways)
Most pumps will have more metal around the motor body which will tend to shield much of the fields. Plus you will have the pump guts on one end spacing the motor away from anything sensitive. Last the shape of most pumps would make it harder to mount a drive close enough to the pump to cause a problem.
At any rate, I can't think of seeing any threads reporting such problems (and even reports of fan induced problems like you mentioned are extremely rare...)
Gooserider
__________________
Designing system, will have Tyan S2468UGN Dual Athlon MOBO, SCSI HDDS, other goodies. Will run LINUX only. Want to have silent running, minimal fans, and water cooled. Probably not OC'c
|