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- Amiga 2000 Stealth Fan Instructions
-
-
- Tired of listening to that Jet Engine Turbine fan on your Amiga 2000?
- Well, heres a solution I came up with that cuts the fan noise down by
- at least half. Over the course of the last 6 months, the noise of my
- Amiga 2000 fan slowly increased as the bearings for the fan started to
- make more and more noise. Since my warranty was out, I decided to go
- ahead and pull the power supply and check out the fan. To my surprise,
- when the fan is seperated from the power supply and held by hand, it was
- almost whisper quiet, except for the noise the bad bearings generated.
- But when mounted in the power supply, the noise was terrible. Drawing
- on my experience in the Submarine Navy, I realized that it was a simple
- problem of sound isolation. The fan had been popriveted onto the
- aluminum case for the power supply. This direct metal to metal contact
- allowed the noise vibrations to transfer from the fan to the power
- supply, and from there to the rest of the Amiga case, amplifying the
- sound generated by the fan.
- The solution? Well, I went to the local hardware store and bought
- four 1/8" x 1" round headed bolts with nuts and lock washers and four
- round rubber grommets with a 1/16" slot for the power supply casing and
- a 1/8" hole for the screws. These parts should only cost a couple dollars.
- Now, installation. First turn the 2000 off and unplug the power
- cord from the rear. Next, remove the 5 phillips head screws holding the
- cover on, and remove the cover. There is one screw in the top middle
- of the back, and 2 screws on the bottom of the cover on each side.
- Next, remove the 2 screws on the back of the 2000 for the power supply,
- one is located at the top on the inside edge of the fan, the other is
- at the top, just above the power cord connection. Now remove the 2
- screws that mount the power supply to the metal mounting bracket for
- the power supply and drives. These screws are at the front of the
- power supply next to the protective cage. Now, unplug any power supply
- cords coming from the power supply to the motherboard and disk drives.
- You should be able to remove the power supply now. Ok, now to remove
- the fan, use a 1/8" or 5/32" drill bit and drill to drill out the rivets
- connecting the fan to the power supply. Next you need to drill out the
- fan mounting holes on the power supply to accomadate the rubber grommets.
- The grommets I used required a 5/16" hole. Now install the grommets,
- and mount the fan using the 4 bolts, lock washers, and screws. I
- found it was easiest to install the bolt at the bottom right corner
- of the fan first. (Looking from the rear of the power supply)
- Tighten the screws until snug, but don't overtighten.
- One last item, you should trim any of the rubber grommet sticking out
- on the side of the fan cover plate so that the power supply can fit
- snugly against the rear of the 2000. That's it! Now just re-install
- the power supply and the 2000's cover.
-
- Glenn Nielsen
- CIS 75115,444
- BIX gnielsen
-