Compaq Armada m700 Getting Started and Troubleshooting: Compaq Armada M700 Ser - Page 59
Solving USB Problems, hubs on the first tier
View all Compaq Armada m700 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 59 highlights
Solving USB Problems Problem Possible Cause Solution 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, Windows 98, or Windows 2000 Professional loads). During startup, only two Use the external device tiers are supported by the only after Windows 95, USB port. These tiers can Windows 98, or include no more than two Windows 2000 hubs on the first tier and Professional has loaded. 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 devices An unpowered hub is in lower tiers do connected to another not work. unpowered hub. Use only powered hubs. Make sure that all unpowered hubs are immediately preceded by powered hubs in the USB chain. 5-20 Troubleshooting COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: Karen Williams Saved by: Karen Williams Saved date: 05/23/00 11:51 AM Part Number: 168894-001 File name: cH05.doc