I have 4 USB ports. My problem is if I connect one USB device (printer, joypad,etc), the device running ok.
If I connect two USB devices, the devices start to operate below average.
If I connect three, more problem occurs such as:
-when transfer data to pen drive - cannot copy, path too deep
-device not found
I can't imagine if I connect 4. So, anybody kindly please answer my question..
2007-02-07 18:39:48 · 4 answers · asked by Phuzz Lee 1 in Computers & Internet ➔ Hardware ➔ Other - Hardware
Yes, some of the answer got it right.
It the power thing.
The device connected to your USB need some power to communicate.
That is why you see your optical mouse(if you have one) has light at the bottom.
The more devices added it draw more electrical source from it.
The current standard power supply needs to be 450watts inorder to substain the power requirement for all these USB devices.
You can check what is the rating of your powver supply by openning up your computer jacket, it has a label that say what is the wattage.
Or get a active USB hub that has it own power source.
It won't cost much you can get lesser then $30.
2007-02-07 21:22:08 · answer #1 · answered by electricgold2002 5 · 15⤊ 0⤋
"path too deep" is not a USB problem, per se, but could really be a problem with the fact that you are trying to copy a pathway that is too long. That is, the full path name of the file might have too many characters in it for the operating system. Try copying to another folder with a shorter name.
As for the USB problem, I don't have a clue on that. I've never heard of USB slowing down like that. The power supply question might be right -- are these USB ports directly on the computer (which would allow them to get good power) or are they on another device, such as a keyboard or hub?
2007-02-07 18:45:46 · answer #2 · answered by drshorty 7 · 1⤊ 0⤋
That sounds unusual and all I can think of is your power supply is too small to power all these devices. If you have modified your PC with any hardware since you bought it such as video cards, sound cards, external devices, you are probably due for a bigger wattage supply.
2007-02-07 18:42:18 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It might help if you used an external DC supply to power the 4 USB ports.
The symptoms you describe are pretty much what I'd expect from simply relying on the USB-port's "built-in" DC supply
2007-02-07 18:43:55 · answer #4 · answered by atheistforthebirthofjesus 6 · 1⤊ 0⤋