9 Dec
2006
9 Dec
'06
6:03 p.m.
In the late 90's the cheep cpu fans they were
putting in clones would last between 15k -> 20k hours. Changing
fans kept some small service shops in business for several years around the turn of the
century.
Same here back then from early 90's to 2000 or so, we replace fans on
anything from 40mm all the way to 80mm bec of bearings dying. Now
no longer since we just replace the heatsink or a power supply.
My friend David had a stiction problem last year on a
3344 disk pack running on an IBM System 3. The head
retracted to park and stuck to a very old and very soft rubber home stop. It did not
release and come ready untill
pushed from behind with a stick, via the inspection hole, to get it moveing again.
Stiction comes in many forms from numerious reasons .....
Bob Bradlee
I had several micropolis 13xx series get rubber stop stiction that
glued the arm to that rubber stop and not letting arm go. Had to
open it and push arm off rubber for data recovery.
Cheers, Wizard