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Computers with Known USB
Problems |
[E-Machine] [Dell] [Hitachi] [IBM]
[NEC] [Quantex] [Toshiba]
E-Machine Model 336e
Unknown problems
with USB devices.
The issue was
resolved model 336i.
Contact the vendor.
Dell
Dell has
stated in
Dell
knowledge base document FA1021802, that a USB device such as a scanner or
printer may not be detected or function correctly when connected to the USB
port of a Dell Latitude or Inspiron PC (it may occur on other models as well).
Various
communication errors may occur, including device initialization and device
not found errors.
Some Dell computers
do not provide enough voltage from the USB ports to power some USB devices.
Dell recommends
purchasing a powered USB hub to provide the USB devices with enough power to
operate correctly. A USB keyboard with built in hub is not a solution and
can worsen this problem.
Dell Inspiron 2650 has a known issue with the
onboard O2Micro cardbus controller. Problems with cards attached to
the controller are resolved by a patch found here
O2Micro
Cardbus Controller Patch Information
Hitachi Visionbook Plus 4000 Series
USB is disabled on
these machines due to problems on the laptop with power. The laptop does not
properly support high-powered or bus-powered devices.
Work Around by using
a different interface to connect the device to the PC, i.e. parallel, PS2 or
Serial.
IBM 300GL or IBM 300PL
USB ports on
300GL/PL PCs may experience a communication problem known as jittering.
Contact IBM about
replacing the motherboard.
NEC NX series
NEC NX series
computers are equipped with a Legacy mode USB BIOS that allows the USB
keyboard to work in real-mode. After suspending and then resuming the
computer, or waking up the machine by using a USB keyboard/mouse, USB
devices will not work after the computer is resumed.
This phenomenon is known as Plug/Unplug.
Unplug the USB
device that is not responding, wait 30 seconds, and reattach the device.
Quantex Computer
The USB is not
enabled in the BIOS
Enter the CMOS Setup
(BIOS)
- Advanced Chipset
- Enable USB by
placing checkmark next to Passive Release.
Warning: Do not change any other settings in the BIOS, as doing so
could cause other computer hardware not to work. Contact the PC vendor
or manufacturer if you need assistance.
Toshiba laptops
Some older Toshiba
laptops shipped with USB ports that used the NEC USB Host Controller HW Rev 000
and 001. This USB Host Controller has known issues that can not be
corrected.
The following
Toshiba laptops have this known problem:
- Satellite 220,
300,310
- Satellite Pro
440, 460, 470, 480
- Portege 300
- Tecra 520, 530,
540, 550, 750 CDT
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