Keyboard/Interface failure ASUS P5Q-SE2 Motherboard on boot up

SOURCE: cmos checksum bad...usb current status detected system shut down 15 sec

Situation Remedies If you have encountered this error and would like to fix your computer, here are some remedies for each situation:
CMOS Battery Not Functioning Properly: If you suspect your CMOS battery is not functioning properly you can easily change it. Before changing your battery, reboot your computer to make sure that the error still exists. If it does, go into your CMOS and write down all of the settings. If all settings are lost, you can usually get them from your computer manufacturer. Now locate the battery and remove it, you might need to consult your computers manual or tech support to remove your battery. Take down the CMOS batteries information such as volt, size, etc. Once you have your new battery, you can replace it and reenter your CMOS settings. If your battery was the cause of the CMOS Checksum Bad Error, you should have remedied the problem.
Your BIOS has Been Updated (either by you or possibly a virus): If your BIOS has been updated recently, your CMOS settings may have become reset. Make sure that the values entered in the BIOS are correct or simply reset them to the default settings. If you believe that a virus updated your BIOS settings, run a virus scan and make sure that the BIOS settings are back to the default.
The Computer Was Shut Down Improperly: Sometimes when running MS Windows, if you shut down your laptop or desktop without first properly shutting down your operating system it will corrupt the CMOS settings causing the CMOS Checksum Bad Error. You can easily avoid this error by making sure that you completely shut down your computer before turning off the power. Usually this entails going into the Start Menu/ Turn Off Computer/ Shut Down. If you received the error, shut down the computer properly, if this is the cause of the error, the error message will not return.

Steve Si

• 395 Answers
• Posted on Aug 08, 2008

SOURCE: Asus P4B Motherboard

Press DEL to enter setup and set Reset to Defaults in Exit menu. If you have USB keyboard, make sure you enable Legacy USB and USB keyboard settings, save and exit and reboot.

SOURCE: bios setup error

Unplug ALL Usb devices, that includes printers, cameras, pen drives, i.e. anything that plugs into a USB connector. Then try rebooting your computer. I bet your problem will no longer exist, but if it does, then you need to suspect a faulty USB connector on the motherboard or USB chipset located on the motherboard. Once the computer is booting normally without USB devices hooked up, you can start installing ONE Usb device at a time, until you find your defective USB device. The USB device drivers will need to be installed and computer rebooted at least once between the various devices. Not doing so will lead to confusion as to which USB device is causing your high current problem. It is also possible athough a bit unlikely that this procedure will cure your situation for the time being but look out for it in the future because it could be an early sign that one of your USB devices is going bad.

SOURCE: system shutdown in 15 seconds

hi, pl check for viruses, scan the system, and go to cmd prompt and issue this commnd at c:\ shudown -a and press enter to disable reboot and scan the system and check any hardware issue.

SOURCE: System shutdown in 15 seconds

Shut the power down to the computer all the power and pull the power cord out, remove all usb devices except the mouse and keyboard, Turn the unit back on and see if this fixes the problem, if it doesn't then you will have to go into the computer and clear the c-mos this will allow you to get into the bios screen from there you can set up the computer again. Check you manual for the instructions on bios reset, most times it is just pins 2+3 that need to have a jumper installed to reset it. READ THE MANUAL PINS 2+3 APPEAR ON MANY THINGS ON THE CIRCUIT BOARD