Intermittent/flakey USB and PCMCIA connectivity on T40

T4x series specific matters only
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SteveDC
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Intermittent/flakey USB and PCMCIA connectivity on T40

#1 Post by SteveDC » Sun Oct 02, 2005 6:05 am

Intermittents are the worst. Here goes...

The USB connectors on my two-year-old T40. sometimes "disconnect" and I get a "high-low" beep. After a minute or two, they may reconnect with a "low-high" beep. Regardless of device, or USB port (T40 or docking station.

Also, some PCMCIA devices will not function properly (but they all do on my T20). For example, W-Fi cards work fine, but Verizon's EV-DO wireless card will not. Finally got high enough in Verizon to do an hour to troubleshooting with a good tech. They guess power supply problems on the T40. Voltage may be fine for some cards, not others. From what I know about electronics and PCs, that makes sense to me.

IBM/Lenovo support not too helpful with intermittents. I wish they would just take it and test the power supply, but they do not want to.

Like I say, intermittents are the worst.

Can I easily measure the power supply voltages myself? I am handy with a meter, just don't know where to go.

Tips are appreciated! Thanks!

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