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The CMOS Checksum thing was because you removed the old CMOS battery (and inserted a new one). Also, after i chakra.dll hit f2 to load defaults, and when i booted to windows XP, the system time was changed to April 2000. Hello, to continue, DEL to enter SETUP" messages appeared on the screen. While booting "CMOS checksum error – Defaults loaded" and "Press F1 set ups, BUT forgot to save the changes.

How To Reset Pc Bios/cmos

I reboot and enter the BIOS, Uguru now says that the current FSB is "MHz", i can change the value and it seems to save when I press F10 but nothing actually happens. If that’s not enough, the problem is certainly caused by CMOS battery, which allows you to feed it when it is turned off, storing the information. The CMOS battery is a button cell located on the motherboard.

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  • You might also consider booting with a live Linux disc or flash drive to see if you can access the contents of the drive.
  • Clean first with isopropyl alcohol and a lint free cloth then, in most cases you should, apply a very small amount of thermal compound to the CPU.
  • PCWorld helps you navigate the PC ecosystem to find the products you want and the advice you need to get the job done.

The ErP setting is a super low power state that is supposed reduce power draw when the system is off, to less than a watt. Couple of people have reported strange issues booting with it enabled. Yesterday, I decided that I would see what my Q6600 is capable of and enter the BIOS to change the FSB modestly. PC reboots and I am load Vista fine, however CPU-Z still says 266FSB as does SANDRA.

This may be due to the fact that the battery powering the CMOS (when the computer is shut down allowing the CMOS to store information) is depleted if the problem continues. Any help running down a good error cause and a service manual will be appreciated.

If you have CMOS checksum error, after change of power supply then we strongly recommend that youDownload (CMOS checksum error, after change of power supply) Repair Tool. Will the system boot normally with the BIOS at default settings (other than say UEFI mode).