TechSpot

CMOS Failure 5 Beeps no POST

By DalTech79
Jul 9, 2014
Post New Reply
  1. I have a Dell Insprion Desktop 537 that I got from work and it will not boot up. At first it would just power on and do nothing else. The power LED lights up, the CPU fan spins at a very high RPM. Then I unplugged everything from the motherboard (memory sticks, cd rom drive, hard drive, usb ports, video card) and only had power connected to the board. That's when the 5 beeps began. I found Dell's support page with the owner's manual pdf links to download Here but they don't work. I did find the manual on this website and states that 5 beeps is a Real Time Clock Failure and to replace the battery. I swapped out the CMOS battery with another known good battery from a second tower that runs just fine. Still the motherboard beeps 5 times. I have turned the battery to make sure the contacts are cleanly touching. There is no corrosion anywhere and no blown out capacitors. I have even removed and reseated the CPU. What else is there to do?

    Motherboard: G41T-DM Rev. A00
    Service Tag: 9N906J1
    Regulatory model DCME and DCMF
     
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    The motherboard has gone bad
     
  3. DalTech79

    DalTech79 TS Rookie Topic Starter

    Bummer! Maybe it's a cold joint. I've baked a few motherboards before due to these kinds of beeps and every time it turned back on like nothing happened. Thanks for your reply Tmagic650!
     
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    No problem, thanks for coming by...
     

Similar Topics

Add New Comment

You need to be a member to leave a comment. Join thousands of tech enthusiasts and participate.
TechSpot Account You may also...