Question about HP Compaq Presario SR1820NX (ER919AA) PC Desktop

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Trying to install windows and at the boot screen have my keyboard and mouse plugged in windows doesnt see it.. I tried the USB keyboard and nothing I just recently replaced the MOBO using anti-static wrist bands and working on table not carpet ALL USB ports work fine tested with my USB stick and every port lights up adn does the optic mouse the keyboard lights up but the keys dont work...

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  • Raph Quintos
    Raph Quintos May 11, 2010

    have you tried using a PS/2 keyboard and mouse? Most USB keyboards and mouse usually takes time to install before you use it. btw, what kind of USB input devices do you use?

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I have seen this before, and the best answer I can offer you is some Motherboards are better than others when working with usb devices while no OS is in place. I actually tried using usb / to / ps/2 adapters and it still would not recognize the usb keyboard in a couple of instances. I had to get a ps2 keyboard for the installation of windows. After windows was installed I hooked up the usb keyboard and it worked fine. (just speaking from my own personal experience here)

Sorry I do not have a more technical answer for you but I'm almost 99.9 % sure this should work, providing there is no problem with the ps2 keyboard port on the Motherboard. I have never failed to install windows unless there was another hardware based issue of some kind, but never a problem with a known good ps2 keyboard.

Just double check everything is seated properly and try to get into the bios setup, if you cannot use the usb keyboard for this, you can try the usb / ps2 adapter, but if that doesn't work either then use a regular ps2 keyboard. That should work fine, then after setup is complete, windows is installed, then your usb keyboard should work fine.

Posted on Mar 03, 2009

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