Toshiba Satellite 5005-S504 3 USB Ports not functioning

My laptop 3 USB ports use to be working, then stopped for several months, then started working all of a sudden for about 5 months, and have stopped again. If there was a loose wire can you recommend where it might be internally? Thanks.

Guymmo Mar 25, 2008

The three USB ports appear dead.
The touchpad (internal USB device) continues to work.

Linux:
Booted from a Linux CD and the ports do not work under Linux either. According to what I understand about the BIOS of the Toshiba 5005 series all device settings (at least for the USB) are in the operating system and none in the BIOS.
So it appears that the (external) USB problem is not software.

Windows-XP:
After restarting in Windows-XP and disallowing and uninstalling the USB device driver (2442) and multiple rebooting: the USB ports came back!
But two reboots later I lost the ports again. (Touchpad still okay).

My conclusion so far is that this is an intermittent hardware problem. Hope that you have some suggestions, thanks.
bezay Jul 12, 2008

my usb ports do not function

my usb ports do not function

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Oton Alencar

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Sory, I know this topic is old but I have (almost) the sabe hardware (mine is a 5005-s507) with the same problem: usb ports are dead and in my case the LAN port is dead too.

So, at first i was convinced it was a problem in the southbridge chip but the touchpad (witch is PS2 and not usb as mentioned) still works so I give up from this theory...

Well... opening the laptop I saw there is two USB ports soldered to the sound card and one along with the video card. This two cards are not integrated to the main board (and can be replaced) but the LAN card is integrated and than I'm back to the mark zero.

Theory1: despited to de LAN card be onboard, the conector itself is not. It is conected through a short set of wires to the mainboard. So could it be a problem with the USB controler HUB (forgive me if I ame being nonsence) associatd with a defective LAN port? two problems?

Theory2: a malfunction in the motherboard, not on a chip but in a circuit ramification, due to some Resistor, Capacitor, Inductor causing current to be unistable or insuficient?

both cases demands the mainboard to be replaced.

Is important to mention that the sound works and as it is conected throug the PCI bus witch is conected to de southbridge, I discarded the possibility of complete fail of the Southbridge chip.

Posted on Jun 04, 2010

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I don't think a wire is the problem as they are soldered to mobo. It is more than likely a power problem. If you go to the hardware tab in device manager and go down to usb root hub>right click and properties then look at the power tab and you will see a 500MA allowance on usage. You can easily go above these if you are using them, so check that they are all active. Also go to control panel>admin tools>services and look down list for 'plug n play' and make sure it is set at automatic and 'universal plug and play' is set at manual

Posted on Jan 29, 2007

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