How do you reset pram with an external keyboard

Hi, this is related to the keyboard and trackpad not working anymore on my 21month old MBP. I tried reinstalling osx 10.5 and no luck. Tried holding down the power button for 10seconds, got the beep but no trackpad and keyboard afterwards. The preference pane does not show up in the system pref panel anymore for the trackpad. I even downgraded to 10.4. and no luck. So question is there anyway to reset the pram with an external usb keyboard hooked up to the MBP. That is the only way that I can type right now. Or should is this a logic board issue. My video had been having issues about a week ago. The screen would stay blank and also zoom would work properly with pdfs or in CAD (it would be very pixelated at times). Any thoughts. Did the new firmware update fry my computer. Help Apple!

Hi Bob.
You can reset pram via a external usb keyboard the same way you would normally reset pram. Apple + Option + P + R. However pram will do nothing to your situation. Sounds as like you are having much bigger issues. When you reinstalled the OS, what type of install did you do? If you did an erase and install without bringing back you data, you probably have a hardware issue.
Boomer

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