USB Notification overcurrent condition at startup

My two week old MacBook pro has started giving an alert on boot saying that the USB ports will be disabled. Console gives me the following:
"USB Notification: the device "ECHI Root Hub Simulation" @ 0xfd000000 has caused a overcurrent condition. The hub it is attached to has been disabled"
USB ports do not work (but iSight does).

Do I need to send MacBook back?

MacBook Pro 15" 2.33GHz 2GB ram, Mac OS X (10.4.8)

Posted on Jan 8, 2007 2:26 AM

Reply
9 replies

Jan 9, 2007 12:14 AM in response to infinite vortex

Hi,

I've the same problem. Since nearly three weeks I've a new mainboard in my MBP 1.83. The noise is gone but the USB-Problem is new.
At first it happend with a printer connected via USB. Now I've nothing connected and the message is still there. Sometimes the message comes through startup and sometimes my MBP runs for hours and then the message appears.

I've noticed that this message appears in BootCamp WinXP, too. But there the message appears more often then in OS X.

If there is no workaround, I'll have to change the logicboard again. Or does anyone has an idea?

greets
Melanie

Jan 9, 2007 1:53 AM in response to infinite vortex

User uploaded fileDo you get this if you
disconnect all USB devices are physically
disconnected from your MBP?


There are no USB devices detected and the ports do not work anyway.
Funnily enough I seem to think that the problem started when I installed XP via Bootcamp, although I did also have an external drive hooked up via a powered USB hub.
Like the other posts, the warning comes up at boot but also arbitrarily from time to time.
So it does look like returning to Apple, unless anyone else has some ideas ??? (I tried resetting pram, PMU, etc.)

Apr 13, 2007 5:24 PM in response to bekway

I reported in a couple of other places related to this topic that there are issues with the USB ports in the MBP.

I have a MBP 15 2.33GHz/2GB RAM. I have been using a 7 year old G4 Titanium with a USB 4-Port Replicator in one of the USB ports and a keyboard and external HD plugged into the replicator, and a wireless mouse plugged into the keyboard without any problem for years. The MBP, however, will not recognize the Port Replicator on start up. (I have 3 different ones, 3 different mfgs, and same problem.) You have to LOGIN first, then the external keyboard and mouse will be recognized.

And it NEVER recognizes the external hard drive! You have to plug that into the only other USB port on the MBP!!

I took it to Apple and they just shrugged and said, "Well, it's an Intel Machine... must be something different... you should plug an external HD directly into the laptop then. (So, what if I have more than 1???)

The USB port I use mainly is the USB next to the MagSafe socket.

Reading through the carious topics, there seems to be a lot of reports related to this.

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USB Notification overcurrent condition at startup

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