Paula,
It sounds like the USB has gone back a step.
How much memory does the machine have?
>From your description, it sounds as if just the USB
devices are affected, none of the other systems,
right?
Use the System Profiler and check that the USB
subsystem chain
is checking out at USB 2 speeds for the bus and the
devices.
Also, to check if the OSX is the culprit it becomes
interesting.
1) Put your laptop in Firewire 'Target' mode
2) Attach the FW Target mode laptop to the iMac via
Firewire.
3) Use the Startup Disk section (control panel) of the
System
Preferences and choose the external version of OS
X on
the laptop as your startup disk. (this is the
version that
has not been updated) Boot the computer from that
external disk.
4) Test the USB device transfer speed by hooking a
device
up to the USB port on the iMac. If the USB
transfer rates
are back to normal, then you've narrowed it down.
The converse can be tested by flipping it. Put the
iMac in Target
mode and boot the laptop from the OS X volume on the
iMac.
If the laptop USB runs slower, then the files that
make up
OS X on the iMac are the culprit.
This is step one, to verify that it is the OS X on
your iMac
that is affecting the USB subsystem speed. If it is
not, then we
have to look at if there was a firmware update or the
USB itself.
Start with the Target mode FW boot test first and let
us
know what the results are.
Oh, and the FW Target mode can help speed up the
backup
for the iMac as well, unless you are using gigabit
ethernet.
Rocky
***********************************
Date: Tue, 24 Apr 2007 15:08:40 -0400
From: Paula Minor <[EMAIL PROTECTED]>
Subject: Macs don't break ...was (Re: [CGUYS]
Tinkerers in the
treehouse)
betty said:
> Macs last a long time. They don't break, generally.
Yeah, well,maybe. Unless Apple breaks it for you.
I updated my iMac G5 with the latest security updates
and now
EVERYTHING that needs to be transferred to or from it
via USB
connection (memory cards, podcasts from itunes to
iPod, backups to
ext. drives) takes HOURS to transfer and one backup
drive doesn't
even mount.
Visits to the discussion groups at Apple haven't
helped. Only one
person with suggestions....reinstall the 10.9 combo
updater.....has
offered help and it didn't work. He now suggests
clearing the
PRAM???? but I'm worried about doing it and finding
that it won't
boot at all. It will take me days at this rate to
back everything up
since just one MS of pics can take 6-8 hrs to
transfer. I've been
putting the pics on my MacBook Pro and transferring
over the network
and that works fine but it's extra steps......and
doens't solve the
problem of updating the iPod since all my music, tv
and podcasts are
on the iMac.
Needless to say, I won't be applying those security
updates to my
laptop.
Shades of Bill Gates!
Paula
IN/USA
Life should NOT be a journey to the grave with the
intention of
arriving safely in an attractive and well preserved
body, but rather
to skid in sideways, chocolate in one hand, wine in
the other, body
thoroughly used up, totally worn out and screaming
"WOO HOO what a
ride!" Have a wonderful day!
__________________________________________________
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