Compaq ProSignia 500 Spécifications télécharger pdf (Page 127)

External device

connected to a USB

connector does not

work.

The operating system

limits external devices

connected by USB to two

tiers which can include no

more than two hubs on

the first tier and no more

than one keyboard and

one pointing device on

the first or second tier.

Reduce the number of

connected external USB

devices to no more than two

hubs on the first tier, and no

more than one keyboard and

one pointing device on the

first or second tier.

External device

connected to USB

connector does not

work during startup

(before Windows 95

loads).

During startup, only two

tiers are supported by the

USB port. These tiers can

include no more than two

hubs on the first tier and

no more than one

keyboard and one

pointing device on the

first or second tier.

Use the external device only

after Windows 95 or

Windows 98 has loaded.

Reduce the number of

connected external USB

devices to no more than two

hubs on the first tier, and no

more than one keyboard and

one pointing device on the

first or second tier.

External devices in

lower tiers do not work.

An unpowered hub is

connected to another

unpowered hub.

Use only powered hubs.

Make sure that all

unpowered hubs are

immediately preceded by

powered hubs in the USB

chain.

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Compaq ProSignia 500 Spécifications Page 127

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