Lenovo ThinkPad 380ED TP 380Z Hardware Maintenance Manual (August 1998) for us - Page 24
Port Replicator Power Overload, problem to a device by removing each device
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Port Replicator Power Overload If a power shutdown occurs intermittently when PC Card devices are used with a port replicator, suspect an over-current problem. Some PC Card devices use much power, and if at some point the required power exceeds the allowed power, a power shutdown occurs. Isolate this problem to a device by removing each device simulatneously and then using the computer under the same condition as when the power shutdown occurred. This will determine which device is causing the overload. 22
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Port Replicator Power Overload
If a power shutdown occurs intermittently when PC Card
devices are used with a port replicator, suspect an
over-current problem.
Some PC Card devices use much
power, and if at some point the required power exceeds
the allowed power, a power shutdown occurs.
Isolate this
problem to a device by removing each device
simulatneously and then using the computer under the
same condition as when the power shutdown occurred.
This will determine which device is causing the overload.
22