Archived posting to the Leica Users Group, 2007/12/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dear Spencer, Brian, Nathan, R. Clayton etc, I think its a timing issue too...the USB has sat in the same socket for months (its a "direct" connection to the mother board not an external hub. It has been turned on and off - but not disconnected a few dozen times, but nothing like 1500. I broke out a fresh USB cable (from a sealed packet) but no good... Unless I can sort out the timing (any suggestions welcome)I think its SNAFU'd. Thanks for the help, I knew that all I hads tro do was ask the LUG! Peter Spencer Cheng wrote: > In your case, Clayton, I would suspect wear and tear on the USB > connector(s) in your computer and/or your USB cable. > > There is an issue with long term USB plug durability. USB connectors are > only rated for 1500 insertion/removal (according to my hardware friend) > before wearing out and requiring replacement. 1500 insertions doesn't > take long if you do it 10 times a day. > > [Note: I did go check this USB 2.0 specification just now and that > number is accurate. Table 6-7 of the USB 2.0 specification if anyone is > really keen.] > > This is why changing the USB cable as a first step is not a bad place to > start. > > Regards, > Spencer > > On Dec 19, 2007, at 15:12, R. Clayton McKee wrote: >> >> Seagate 250 quit working in box A, so I put it in boxes B, C, and D, >> and it didn't work in any of them. So I plugged it into the mobo as >> secondary slave, hooked it to the main power supply, and it worked >> fine. >> >> So I left it there, 18 months ago now. It's fine. >> >> I then put the Seagate 250 I took out of the main box into box A, and >> it's still humming along quietly. >> >> I have noted that the USB ports are ALL getting somewhat finicky >> lately; I'm not at all sure why. I'm fairly sure this is a hardware >> thing, just because of the intermittent flakiness. I think it's >> time for a round with the canned air and some scotchbrite pads on the >> cable connections (and maybe some new cables...). >> >> I like some of the new tech stuff, but I don't understand any of it. >> >> "wtf?" is as far as I go; "why?" is someone else's department. >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >