HP pavilion motherboard issue

**austin26** · 14-10-2009

Hello,
I have HP pavilion at my home.Two days before I start my machine,PC would not boot up. CPU fan would spin as would the PSU fan.There are two beep tones, one higher pitched than the other and the system shuts down.Any ideas why this happened? Any suggestion?

**gygabite** · 14-10-2009

Beeps usually mean something vital to start the computer isn't working, say RAM, processor or Motherboard. Only hard drive problem wouldn't give you beep.Removed the battery from the motherboard.Because,CMOS battery which is there to save the changes in the BIOS.Removing the battery usually sets the BIOS back to factory default.The fan is working means there is no power issue.I think issue about your motherboard, may be motherboard is faulty.checkl your system with your system engineer.

**PeterAGASSI** · 14-10-2009

Check all connections and cables.Try resetting the bios.Try the new cmos battery & jumper pins.If you r battery is not working then system will not start up.Remove your ram and check with other system,is that working or not.Remove the graphic card, and every thing and,try to run your system. if that will not work then surely your mother board has serious issue. check With your engineer or else replace it.