Possibly your modem is drawing at close to (or above) the 500ma limit, and only the lower port (which I think is closer to the motherboard) can supply enough juice.

--------------------------------------------------
From: "Jeffrey Race" <[email protected]>
Sent: Sunday, August 21, 2011 4:02 AM
To: <[email protected]>
Subject: Re: [Thinkpad] USB cellular modem on T43 issue

Works normally when I insert a thumb drive, or a
printer, which is all I previously used it for.
This is my first experience with its use for a
modem
Jeffrey Race

--Original Message Text---
From: [email protected]
Date: Sun, 21 Aug 2011 08:19:53 -0400 (EDT)

It is not normal.

How does the upper port behave when you insert a different USB device? cheers, George


-----Original Message-----
From: Jeffrey Race <[email protected]>
To: Thinkpad Users Group <[email protected]>
Sent: Sun, Aug 21, 2011 7:58 am
Subject: [Thinkpad] USB cellular modem on T43 issue




My Huawei E160 modem is recognized only

when inserted into the lower USB

socket on my T43 running WXP SP3, not

the upper socket. Is this normal? If

so why? If not, what should I do?



Jeffrey Race



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