Author: parsec
Subject: Can no longer access BIOS settings on boot
Posted: 18 Feb 2017 at 11:38am
Given your mouse and keyboard refuse to work, you will need to clear the BIOS/CMOS.
This is the procedure to do that:
The PC must be shutdown/ shut off. The PSU power switch in the Off position. AC power removed from the PSU, unplug the PSU.
Open up the PC case. The Clear CMOS jumper is on the lower right side of the board, not far above the screw in the lower right corner. CLRCMOS1 is written on the board by the jumper.
Remove the jumper from the center and pin on the left, and move it over one pin so it is on the center pin and pin on the right side. Leave it in that position for a minute. You can also remove the battery from the board temporarily for a complete BIOS clear, usually not needed.
After the minute, put the jumper back on the center and left pin, the normal position. Connect the battery again if it was removed.
The procedure is complete. Put the PC back together, connect power to the PSU, and try to start it.
If you've been using USB 3.0 ports for the mouse and keyboard, don't bother. Use the USB 2.0 ports, since all keyboards transmit data at less than USB 1.1 rates.
If this still does not work, the BIOS was corrupted for some reason, and we'll need to see how we can update the BIOS without a working keyboard.![Confused]( "Confused")
Subject: Can no longer access BIOS settings on boot
Posted: 18 Feb 2017 at 11:38am
 tragician wrote:Bump as I've received no response from Asrock tech support. |
Given your mouse and keyboard refuse to work, you will need to clear the BIOS/CMOS.
This is the procedure to do that:
The PC must be shutdown/ shut off. The PSU power switch in the Off position. AC power removed from the PSU, unplug the PSU.
Open up the PC case. The Clear CMOS jumper is on the lower right side of the board, not far above the screw in the lower right corner. CLRCMOS1 is written on the board by the jumper.
Remove the jumper from the center and pin on the left, and move it over one pin so it is on the center pin and pin on the right side. Leave it in that position for a minute. You can also remove the battery from the board temporarily for a complete BIOS clear, usually not needed.
After the minute, put the jumper back on the center and left pin, the normal position. Connect the battery again if it was removed.
The procedure is complete. Put the PC back together, connect power to the PSU, and try to start it.
If you've been using USB 3.0 ports for the mouse and keyboard, don't bother. Use the USB 2.0 ports, since all keyboards transmit data at less than USB 1.1 rates.
If this still does not work, the BIOS was corrupted for some reason, and we'll need to see how we can update the BIOS without a working keyboard.
