At 4:42 PM -0600 11/30/2010, Stephen Conrad wrote:
Twice in one day my G4 Quicksilver shut down
Nov 30 16:21:45 steve-cs-power-mac-g4 kernel[0]: USBF: 721.937
AppleUSBOHCI[0x240b800]::Found a transaction which hasn't
moved in 5 seconds on bus 25, timing out!
I see the USB part but I stopped using the 2 bad USB ports on my one
Hub and prior to this I had run the machine for over a week with no
problems.
Disconnect that hub. Stop using it -- then see if the machine still
has the problem.
USB Hubs rarely have any sort of electrical protection *between*
ports. If one port has gone bad (probably shorted) then at the
minimum you now have a power leak, and if the power is leaking onto
the wrong lines... Not good. Hubs are unintelligent connectors -
like an electrical octopus. You wouldn't continue to use an octopus
with a burned socket, would you?
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.
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