Question about Sony VAIO PCV-RZ40C1B PC Desktop

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I updated the bios on a Sony PCV-RZ40C1B to the newest (2005). The USB ports would only run at 1.1. The advice was to enter bios and set the defaults. The result was one USB controller now runs at 2.0 the rest are still at 1.1, however the DVD drive and CD drive are now not recognized on the IDE secondary. What is the magic to getting all USB controllers to run at 2.0 and get the DVD (D:) and CD (E:) back as well? Thanks for clues.

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Are you sure you got the right BIOS update? Try doing a reset BIOS to default settings and see what you got from there.

Posted on Sep 06, 2010

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A. Update your Chipset and Video Graphics Drivers to the latest versions.

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Remove bios battery and erase new bios (usually a pair of pins to short). If USBs now work - don't upgrade bios! If bios settings have no setting for diabling USB, motherboard failrure seems likely. Try a PCI USB card to provide sockets.

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Can't enter BIOS


Hi there.
  • Boot the system. Press F2 to enter the BIOS setup.
  • Press ALT-F
  • Press ALT-B
  • Computer will restart and display a message indicating it is re-detecting IDE drives. After a minute or so, Windows will start. Test the device that wasn't working before.
  • If you want to restore other BIOS settings you have set, such as the boot sequence, you will have to restart the computer and enter BIOS setup again.
If this does not work try another usb keyboard in the same port.

Good luck and thanks for using FixYa!!

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Thats a USB driver error. You might have to reload it.

Before you do that though, try putting your computer into safe mode.

Turn the power off.

Wait 30 seconds. Turn the power on.

At the beginning of the booting process press and hold the f8 button. When the safe mode menu appears, move the up and down arrows to select safe mode and press enter.

Once windows is out of safe mode, restart the computer in the normal mode.

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I would fold the inbuilt keyboard back and use an external keyboard.

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You might also consider a power supply. Sometimes they don't die completely, you'll still get a little power from them, but they still need replaced. The motherboard would be the next option, then finally the CPU. CPU's rarely go out before the power supply and motherboard.

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You may need to turn on USB emulation in the system BIOS. To do that you'll need to power the system down. When it first turns on you'll see the Compaq logo with instructions to enter setup somewhere on the screen (I can't remember if that model asks you to hit F1 or F2, try both). Once in the "setup" you'll want to look for USB support. More than likely it's going to be in the peripherals screen.

Also, I recommend downloading and updating the BIOS to the newest version. You can get all the downloads for your system on the HP/Compaq website.

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the only thing i can think of is your usb support in the bios settings which can be accessed by pressing del button while the comp is starting that option should be enabled if that doesnt work i think your keyboard and mouse might need replacing i can't see all usb ports being faulty it's very unlikely jim regards

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