Western Digital WD800B015 User Manual (pdf) - Page 29

Troubleshooting, Frequently Asked Questions - USB Information

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7 Troubleshooting WD DUAL-OPTION MEDIA CENTER AND COMBO EXTERNAL STORAGE PRODUCTS USER MANUAL To search the WD technical support knowledge base and to view a complete list of FAQs for your operating system, visit our support Web site at support.wdc.com. Frequently Asked Questions - USB Information Q: What is Hi-Speed USB? A: Hi-Speed USB is another name for USB 2.0, which provides transfer rates up to 40 times faster than USB 1.1. Upgrading to USB 2.0 is highly recommended because of the significant reduction in file transfer time versus USB 1.1. Q: How do I determine whether or not my system supports USB 2.0? A: Refer to your USB card documentation or contact your USB card manufacturer. Note: If your USB 2.0 controller is built-in to the system motherboard, be sure to install the appropriate chipset support for your motherboard. Refer to your motherboard or system manual for more information. Q: What happens when a USB 2.0 device is plugged into a USB 1.1 port or hub? A: USB 2.0 is backward-compatible with USB 1.1. When connected to a USB 1.1 port or hub, a USB 2.0 device operates at the USB 1.1 full speed of up to 12 Mbps. Q: Can USB 1.1 cables be used with USB 2.0 devices? A: Although USB 1.1 cables work with USB 2.0 devices, it is recommended that USB 2.0 certified cables be used with USB 2.0 peripherals and USB 2.0 PCI adapter cards. TROUBLESHOOTING - 25

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WD DUAL-OPTION MEDIA CENTER AND COMBO EXTERNAL STORAGE PRODUCTS
USER MANUAL
TROUBLESHOOTING – 25
Troubleshooting
To search the WD technical support knowledge base and to view a complete list of FAQs for
your operating system, visit our support Web site at
support.wdc.com.
Frequently Asked Questions — USB Information
Q:
What is Hi-Speed USB?
A:
Hi-Speed USB is another name for USB 2.0, which provides transfer rates up to 40 times
faster than USB 1.1. Upgrading to USB 2.0 is highly recommended because of the
significant reduction in file transfer time versus USB 1.1.
Q:
How do I determine whether or not my system supports USB 2.0?
A:
Refer to your USB card documentation or contact your USB card manufacturer.
Note:
If your USB 2.0 controller is built-in to the system motherboard, be sure to install
the appropriate chipset support for your motherboard. Refer to your motherboard or
system manual for more information.
Q:
What happens when a USB 2.0 device is plugged into a USB 1.1 port or hub?
A:
USB 2.0 is backward-compatible with USB 1.1. When connected to a USB 1.1 port or
hub, a USB 2.0 device operates at the USB 1.1 full speed of up to 12 Mbps.
Q:
Can USB 1.1 cables be used with USB 2.0 devices?
A:
Although USB 1.1 cables work with USB 2.0 devices, it is recommended that USB 2.0
certified cables be used with USB 2.0 peripherals and USB 2.0 PCI adapter cards.
7