[comp.sys.ibm.pc.hardware] noisy fan on an genuine IBM PC

campbell@dev8j.mdcbbs.com (Tim Campbell) (06/05/91)

In article <9106040148.AA08179@lux.sait.edu.au>, et891856@LUX.SAIT.EDU.AU (et891856) writes:

> Also because it is a genuine IBM, the power supply case has these horrible
> screws with heads shaped like an eight-pointed stars.  Does anyone know
> where you can get a tool to undo these ?

I don't think you have a genuine IBM power supply in that box.  I had an IBM
PC (not even an XT) and had to replace the 65w power supply so that I could
have enough to juice to run a hard disk.  It uses normal screws - 4 to be 
exact - which secure it to the cabinet.  I'm wondering if you're describing
the "torax" (sp?) screw heads -- a lot of hardware stores carry screwdrivers
with these now because they're common on a lot of cars.

As for the noise, you're right - they are noisey boxes.  I'd think somebody
makes a quieter fan -- I knew one guy who found a company (many years back)
which made a power supply with a 2-speed fan and a temperature probe.  It
would operate in the quiet, low-speed mode unless the temp. in the case got
too warm -- at which point it would kick up to high speed.

Another suggestion to quiet the noise is to move it away from you.  Buy a floor
stand and put the computer beneath your desk - this will make the noise a 
lot less obvious.

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