Wireless USB Adapter Not Recognized

Hello guys, Now I want to share a little bit about my experience of installing wireless USB adapter, I hope it is useful for you.

The story began when I my old computer had a problem with its motherboard, you know, its capacitors was leakage, so that my computer could not boot normally. I have tried to replace them with the same type, but nothing changed. So finally I decided to buy a new computer.

A new computer had higher spesification than before one, Although this computer was far from satisfaction. I did not have more budget for it. Here are the spesifications:

1. Processor: Intel Pentium D 940 @ 3200 MHz
2. Physical Memory: 2048 MB
3. Mainboard : Gigabyte 8I945GMF
4. Video Card : NVIDIA GeForce 6600
5. Physical Memory: 2048 MB
6. Hard Disk : ST3160023AS (160 GB)
7. DVD-Rom Drive : BENQ DVD DD DW1625
8. Chipset : Intel i945G/GZ

I installed Windows XP with service Pack 3. After installing Win XP and Installing all driver for motherboard I tried to connect my wireless USB adapter. I used usb adapter everytime I connected to internet, but now my USB adapter was not being recognized by system. Why did wireless USB adapter not recognized by system?, I used usb cable extension about 5 metre, but my friend also used usb cable extension about 12 metre, but their system could detect usb adapter.

To solve this problem I tried to cut usb cable (utp cable) by 1 metre, but my usb adapter still could not be detected, I tried to cut again by 1 metre for the 2nd time, also still got the same result.

I just had 3 metre USB cable now, but I needed to have at least 5 metre to get good signal from acces point (I placed USB adapter on the roof of my house).

I did not know why this happened? Then I asked my friend about this problem, and he told me how to solve this problem. I found that nothing is wrong with both usb adapter and cable, something is wrong with BIOS setting.

In the picture above we can see there are USB 2.0 controller option under Integrated Periperal. You can set Enabled or Disabled. When I faced this problem (wireless USB adapter not recognized) the option was set to Enabled. So I changed the option to Disabled then tried to reconnect the device, Yes my system could detect my wireless USB adapter now with 5 metre extension cable even when I changed to 12 metre.

You know that when we set option of USB 2.0 controller to Enabled, transfer data via USB port become faster than we set option to Disabled. When the option set to Disabled, USB ports have max power for device, so power lost by extension cable can be minimized.

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