Sep 20, 2006 - 03:40 PM
Does your printer, which works well, have it's own power source? And what about the other devices?
Since the USB ports in many cases also provides power for the connected devices, this problem is likely to occur, if they are not powerful enough.
The quality / length of the cables also matter here. A long or low quality cable will consume more power, thus leaving less for the connected device. I have an extension USB cable to make it easier for me to reach and plug things in - BUT it is also much more unreliable, in about the same way, you describe.
I don't think I can make your USB ports work, but perhaps you just have to change your power supply?
Sep 20, 2006 - 07:05 PM
If I think about the devices I can say:
Digital camera - own power supply - has problems
card reader - no power supply - has problems
Pockect PC -In cradle - I guess is using power from cradle - has problems
wireless USB plug in - no power supply - has problems
web cam - no power supply - has problems
printer - own power supply - no problems at all!
What I also tried is to unplug all USB devices and then try only one device. No change!
With power supply you mean the main power supply for the PC?
Oct 04, 2006 - 05:57 AM
What hardware do you actually have in your computer? number of HDD's, CD/DVD drives, fans, flashing lights etc etc
Although it may seem like some items have their own power, they may still draw power from the USB port.
One thing to try is to disconnect as much as you can manage without from the power inside your computer (so if you have extra fans (Dont unplug your CPU fan), extra CD/DVD drives etc disconnect them) Also disconnect any of the USB ports that you can), basically try to reduce the amount of power your computer is using and see if that solves the problem.
Is this a brand name computer, or is it custom built by someone (or even you)?
Oct 08, 2006 - 08:27 PM
> With power supply you mean the main power supply for the PC?
Yes, that one. I am no expert in hardware, so I don't wanna mislead you though. But I remember a while back it suddenly became important to look at the WATTS for the main power supply when you buy a new computer - which I had never considered before. It used to be the GHz and GB that mattered :-)
Jan 19, 2007 - 12:28 PM
Jan 20, 2007 - 02:41 AM
Jun 26, 2007 - 12:39 PM