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HP 500-314 BIOS clear procedure

HP Pavillion 500-314
Microsoft Windows 10 (64-bit)

I just went through the process of clearing BIOS settings on my HP 500-314 with motherboard MSI Orchid-S MS-7906. I wanted to document the procedure in case any Internet searches land here.  There are two ways to clear the BIOS settings that I've found.  For both of these, you'll need to unplug the computer and remove the cover.  I found it handy to just leave everything else connected, as clearing the CMOS requires you to restart the computer.  The two options listed below are independent of each other; use one or the other, not both.

 

  1. Remove the CMOS battery.  Unplug the computer first, and wait until the green LED on the back of the computer goes out.  If you're impatient, once you unplug, push in the power button, and that will discharge the reserve power.  Then remove the CMOS battery.  Wait about a minute, then put the battery back in, plug the power back in, and restart.
  2. Use the motherboard jumper to reset the BIOS.  I found this procedure on the Internet for other MSI motherboards and decided to give it a try.  Fortunately it works; I prefer this approach to method (1) since I'm concerned about wearing out that battery retention mechanism.

    Again, unplug the computer and wait for the green LED on the back of the computer go out (or use the impatient method described above.)  Next, locate the jumper for the CMOS.  It is labelled CMOS, and is towards the bottom of the motherboard, between the chipset heatsink and the blue connector on the bottom.  The default position is with the jumper on pins 1-2.  Move that to pins 2-3.  Now, plug the computer back in, and press the power switch to restart.  Watch the monitor.  You should see an HP logo, then a message stating that the BIOS has been reset to default settings.  Turn the computer off by pushing the power button in and holding for 5 seconds.  Now, move the jumper back to pins 1-2.  Plug in and restart.

With either method, you'll need to go into the BIOS and set it back up.  The second method at least retains the date and time, saving the hassle of resetting that each time.  The computer may fly past the point where you'd normally press escape to get into the BIOS.  If this happens, reboot, and *before* you see anything, start tapping the Escape key (but do not simply hold it down.) That allowed me to see the startup options and go into the BIOS.

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