Some require 640 mA, whereas the standard is 500 mA, and some ports still provide only 350 mA... it is a technical error, but we have seen it on a number of laptops... not necessarily Thinkpads.
If you are using anything else in another port, the total available will often be less than 500 mA RB - - - - - I've got all the money I'll ever need, if I die by four o'clock. ... ... .... ..... ...... ~ Henny Youngman On Sat, Mar 20, 2010 at 10:46 PM, Andrew Webber <[email protected]>wrote: > I'm not sure these are related, so I'll start with the known problem. > > I have an external bus-powered drive that's always worked well. I > plugged it into the top USB port of the T41p and while the light went > on, I got a message about not recognizing the drive. I moved it to the > bottom USB port and it was recognized. > > Is it possible the top port is delivering less than the required > voltage? Would that seem like a reasonable thing for it to be doing (I > don't recall it happening in the past). Right now I have a > self-powered desktop external in the USB port and it's working okay. > > Also, with the bus-powered drive, I got an error at one point related > to E:\$MFt (not sure of the exact spelling). I googled and found a lot > of posts on error messages for this. Master File Table I think and it > sounded serious. No number of shutdowns and restarts (of the computer) > seemed to make a difference. > > I plugged the drive into another machine and it worked fine, no MFt > error. Put it back into the T41p (bottom port and through a powered > hub this time) and got the MFt error again. It seemed to be cycling > through it: MFt error, E: drops off My Computer, E: is recognized, MFt > error, etc. > > Is it possible the MFt message is stuck in a record somewhere and it's > producing this message without actually seeing anything's wrong? > > Thanks! > > > -- > Andrew mailto:[email protected] > > _______________________________________________ > Thinkpad mailing list > [email protected] > http://stderr.org/cgi-bin/mailman/listinfo/thinkpad > _______________________________________________ Thinkpad mailing list [email protected] http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
