On Jan 15, 2014, at 7:55 PM, Herbert Goodfriend <bon...@mailforce.net> wrote:

> I have a Mac Mini G4 1.5GHz running MacOS 10.4.11.
> 
> A few days ago, two problems started:
> 
> 1. The machine would not go to sleep. Neither pressing power button, nor 
> selecting Sleep in Apple menu, nor using keyboard power button (dialogue box 
> appears, but selecting Sleep does nothing. The machine can be shut down or 
> restarted.
> 
> 2. The machine did not recognize its external drive, which is connected via 
> FireWire.
> 
> Tried booting into single user mode, while booting up shows message:
> 
> FWOHCI Error trying to clear PHY ports.
> 
> then
> 
> FireWire(OHCI) AppleID 31 built-in now active, GUID 001124ff fed33758; max 
> speeds 100.
> 
> Apple System Profiler shows FireWire Bus, but connected device does not show.
> 
> Ran TechToolPro and the FireWire test could not be run. It was greyed out, 
> and the information panel that appears when pressing the "i" button says 
> "FireWire Not Available."
> 
> Any suggestions appreciated. Also is there a connection between the sleep 
> issue and the FireWire issue?

I had a G4 powerbook that had burned out FW chip (as in small melted hole in 
the circuit board!). It wouldn’t sleep, and had similar entries in the console.

What I did to allow it to sleep was to remove the FW driver from the 
/System/Library/Extensions folder. Firewire didn’t work, but everything else 
did.

-- 
Bruce Johnson

"Wherever you go, there you are" B. Banzai,  PhD

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