Re: G4 desktop overheating

Subject: Re: G4 desktop overheating
From: Tim Seufert <email@hidden>
Date: Tue, 17 Jun 2008 02:03:23 -0700
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On Jun 16, 2008, at 11:00 AM, Daniel R Killoran PhD wrote:

Incredibly, there does not seem to be an Apple list for hardware problems. I figure you guys are the most likely bunch to ask about this

This list is entirely the wrong place. It is a mailing list for developers to discuss issues related to writing Darwin device drivers, not an end user support list, so I must inform you that you are being quite rude by posting this question here. Also, you have inexplicably compounded your rudeness by copying the entire body of your email into the subject line.

If you haven't already done so, get a can of compressed air and clean all the dust out of your computer.

If that doesn't work, look at:

http://bitsandpieces.info/MDDFanExtensionMod.htm

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References:
>G4 desktop overheating My computer: Dual 870 mHz G4 "Mirror Doors" with 4 disk drives and 768 MB RAM Lately this machine has been overheating (I am given to understand that the max advisable temp is about 153 degF, and it reached 170 once before I lost my nerve and shut it down!) Everything I can find on the web talks about making it quieter by SLOWING the fan - I don't care how noisy it is, I just don't want it to melt! The fan in question (the one that blows air over the CPU's heat sink) is turning very slowly. I replaced it with no change in speed. CHUD has been suggested, but as far as I can see it just allows a "nap" state when the CPU is not busy. My CPU is always busy. What I want is to speed the fan up to its original speed - it used to blow harder, and under stress would speed up for a few minutes until it sounded like a vacuum cleaner! It doesn't do this any more at all! I suspect a recent Apple firmware upgrade, but don't know how to undo it. Any su ggestions? Thanx Dan Killoran (From: Daniel R Killoran PhD <email@hidden>)

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G4 desktop overheating My computer: Dual 870 mHz G4 "Mirror Doors" with 4 disk drives and 768 MB RAM Lately this machine has been overheating (I am given to understand that the max advisable temp is about 153 degF, and it reached 170 once before I lost my nerve and shut it down!) Everything I can find on the web talks about making it quieter by SLOWING the fan - I don't care how noisy it is, I just don't want it to melt! The fan in question (the one that blows air over the CPU's heat sink) is turning very slowly. I replaced it with no change in speed. CHUD has been suggested, but as far as I can see it just allows a "nap" state when the CPU is not busy. My CPU is always busy. What I want is to speed the fan up to its original speed - it used to blow harder, and under stress would speed up for a few minutes until it sounded like a vacuum cleaner! It doesn't do this any more at all! I suspect a recent Apple firmware upgrade, but don't know how to undo it. Any su ggestions? Thanx Dan Killoran

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G4 desktop overheating My computer: Dual 870 mHz G4 "Mirror Doors" with 4 disk drives and 768 MB RAM Lately this machine has been overheating (I am given to understand that the max advisable temp is about 153 degF, and it reached 170 once before I lost my nerve and shut it down!) Everything I can find on the web talks about making it quieter by SLOWING the fan - I don't care how noisy it is, I just don't want it to melt! The fan in question (the one that blows air over the CPU's heat sink) is turning very slowly. I replaced it with no change in speed. CHUD has been suggested, but as far as I can see it just allows a "nap" state when the CPU is not busy. My CPU is always busy. What I want is to speed the fan up to its original speed - it used to blow harder, and under stress would speed up for a few minutes until it sounded like a vacuum cleaner! It doesn't do this any more at all! I suspect a recent Apple firmware upgrade, but don't know how to undo it. Any su ggestions? Thanx Dan Killoran

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Re: G4 desktop overheating My computer

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