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| Author | Getting 9500/200 silent (Read 23151 times) | ||||||||||||||||||||||||||||||||||||||
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z5t
8 MB  Posts: 10 
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on: December 01, 2009, 10:19
Hello everybody, recently I bought an old Powermac 9500/200. It's alot of fun to play with it and it's worth every Euro I paid for it. This Mac has a nice feature - its video card comes in PCI flavor and has a VGA connector, so it's possible to change the original monitor which could be used as a killing weapon if dropped from a window, to a nice flat screen LCD. This Powermac has unfortunately one limitation. It's loud like a vacuum cleaner. Is there a possibility to make it less loud? Is it possible to clean/oil it's fans, so they remain silent? If yes - which elements must get cleaned? Or maybe some parts should be exchanged? Thanks in advance for your advice. z. |
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ovalking
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128 MB Posts: 199
Reply #1 on: December 01, 2009, 13:53
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In my experience it's a past-it's-best hard disk that can cause most noise. Disconnect the power supply to the hard disk(s) and start up to see if it makes much difference. Sometimes extra fans are added - I had one attached to the side of an HD in an 8500, which I disconnected without issue. My 9500 is not the quietest machine ever, but it should be acceptable sitting next to it. G.
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z5t
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8 MB Posts: 10
Reply #2 on: December 01, 2009, 14:20
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Hi, the sound/noise of the HDD can be distinguished, it is very unique and I don't mind it. The nuisance must be a kind of fan which turns consistently. I suspect the power unit with old fan... z.
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dpaanlka
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1024 MB Posts: 1646
Reply #3 on: December 01, 2009, 18:17
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My 8600 and 8200 are both pretty quiet. Not iMac or even Mac Pro quiet, but they're not really loud either. Most PCs seem to be louder than either of them.
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beachycove
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16 MB Posts: 31
Reply #4 on: December 02, 2009, 21:48
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I find the 800-840av-8100-8500-9500 form factor machines to be blissfully quiet as a rule, so there must be a fan or a drive needing replaced or minimally oiled. There are actually two fans in a 9500: the PS fan and an additional fan in the area of the CPU daughter/ PCI cards.
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jonpurdy
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Reply #5 on: August 22, 2012, 03:51
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I just picked up a 9500/132 and it's fairly loud. I'm thinking of replacing the PSU fan and second fan with modern, quiet versions. Has anyone done this? If not, I'll go ahead and do it and report back.
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jonpurdy
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Reply #6 on: August 25, 2012, 19:31
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Update: I replaced the case fan with a silent (18 dB) fan. It's socket compatible but wouldn't spin up. Seems that it's got three wires whereas the OEM one has two. Used an adaptor to plug it directly into one of the power supply connectors and it works great. PSU fan is another story. I'll have to get the PSU apart and solder a 120mm fan to it.
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jonpurdy
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Reply #7 on: August 27, 2012, 16:38
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Update: I replaced the 80 mm case fan with a modern, quiet one. The case fan has two wires but the modern one has three; plugging it into the fan plug on the logic board didn't work so I just used an adaptor and plugged it directly into one of the power supply wires. The 120 mm PSU fan is a bit more difficult and I'm looking into soldering a new one directly in. Though the fan would be controlled by the PSU and might end up not being much quieter than the stock one.
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jonpurdy
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Reply #8 on: August 29, 2012, 23:49
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Sorry for the double; I didn't realize there was a second page and assumed the first post didn't get posted.
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Oelmuvun
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1 MB Posts: 1
Reply #9 on: December 03, 2012, 07:28
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What two wires were plugged into the Mac's fan header? Did you try the other two? The yellow wire of a three wire fan is the tach, it is grounded twice per revolution or something. The red one tends to be 12v on most common fans. If that fails you may have to extract the red and black wires from your fan's connector and swap them if Apple's are reversed. I mean, Apple is totally liable to go and do something retarded like that...However I do not remember reading about them doing that. *shrug*
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