Perfect solution for USB devices not recognized-application tips

Asking for help some problems about the use of USB2.0
1. Do WIN2KSP4, WinXP, SP1, SP2 support USB2.0 separately?
2. is USB2.0 related to the computer hardware interface? The USB on the laptop you bought half a year ago should be 2.0?
3. If WinXP does not automatically support USB2.0, where should I download relevant drivers and software? My active hard drive will take more than 20 minutes to copy hundreds of megabytes.
4. "High-speed USB insert non-high-speed USB interface", this is the active hard disk connected to the machine on the common problems, how to solve?
5. is the USB2.0 only related to the hard drive box? Because the internal is actually an IDE hard disk.
6. Many machines (XP) do not recognize my USB active hard drive, how to solve? Is it an active hard drive problem?

Just a little something I know about:
1,XP is not supported by USB2.0, SP1 and SP2 support.
2, have a relationship, see your notebook is not USB2 Master controller, half a year ago to buy should be 2.0.
3, when you buy a mobile hard drive to give you a drive disk, there is, or can go to drive home to download.
4, "High speed USB insert non-high Speed USB interface", indicating that your machine is a USB1 controller or you have not upgraded to SP1. If the former, there are 2 solutions, one is to upgrade your master controller, one is to buy a PCMCIA to USB2 converter. The latter, Windows XP installs the SP1 patch to support the USB2.0 transfer.
5, that's correct.
6,
For a friend who has never used a USB add-in, it is possible that the system cannot detect a USB hard drive even if the driver is properly installed, mainly because the default CMOS port on the motherboard is turned off, and if it is not set to open, Then Windows naturally cannot detect the removable hard drive. To solve this problem, we can reboot, enter the CMOS Setup window, and in the "Pnp/pci CONFIGURATION" column, "Assign IRQ for USB" is set to "Enable", This allows the system to assign an available interrupt address to the USB port.

Second, the power supply is insufficient

Because the USB hard disk in the work also need to consume a certain amount of electricity, if directly through the USB interface to take electricity, it is likely to appear power supply. As a result, almost all mobile drives come with a separate external power supply or a PS2-turn interface that is powered by a keyboard. At this time as long as the prior connection to the external power supply or through the PS2 to connect with the keyboard, to ensure that the mobile hard disk to provide enough power after the test, then should be normal use of it. It is important to note that it is recommended that you make sure that you have enough power before using a removable hard drive, or you may be damaged by a lack of power.

Third, USB extension cord failure

In addition to the above two reasons, it is possible that the USB interface type does not match the removable hard drive. For example, the computer configured USB interface is 1.1 standard, and the purchase of the mobile hard disk is the USB 2.0 standard interface, which requires connecting the computer and mobile hard drive connector must support the USB 2.0 standard. Because a high-speed mobile device is plugged into a low-speed hub, the device may not be installed properly, and some friends use a USB drive while using a mobile hard disk, which makes it easy to use the 1.1 standard connector that comes with the USB 2.0 standard, which results in the correct identification of the mobile hard drive. This failure can be resolved simply by replacing the connector with the USB 2.0 standard.