Question about ASUS P4P800 SE (890552603657) Motherboard

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Upgrade from P4 2.4GHz to P4 3.0GHz Prescott on P4P800

Doesn't boot, doesn't heat-up, no sounds, black screen, new 500W PSU. Putting old chip back always restores it to running condition.

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  • kris866 Dec 09, 2008

    I RMA-ed it and second chip behaved the same way. That's when I upgraded PSU from 300W to 500W but still no change.

    I'll try to play with CMOS, but that's a pain since I have revert to old chip every time I want to change CMOS settings.

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Playing with CMOS settings didn't do anything. I downloaded BIOS upgrade, although it was a Beta version, from the ASUS site and that seemed to resolve the problem, however only temporarily. Initially I overckloced it by 30% and it seemed to be happy. But, since my USB-TV stick didn't produce the right results (lots of clicking noises, picture jumpy, etc) I decided to bring it back to standard speed and that's when things started going bad and in a minute or two the screen went black.... motherboard was gone!
At this point my solution was to get new MOBO, new CPU (AMD), memory and SATA HD-in other words a new computer. It set me back by $325 but I have a Tripple core (if I remember the proper name for it) CPU, audio and video on board (I am not a gamer!?!!??), my TV stick works great and I'm happy. Here you have the full story.

Posted on Jan 06, 2009

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Sounds like the new CPU is bad. The only other thing that it could be is if there are some settings changed in CMOS. I would clear the CMOS and if that does not fix it then the new CPU would be bad.

Posted on Dec 09, 2008

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Thanks for asking FixYa for help. My name is Jeff and I will be assisting you today. The bad news is it sounds like the motherboard is fried. The good news is it looks like you can buy one for $10.

You can fiddle with the memory to make sure it's tight, but if the har drive is working the motherboard is on its last legs.

If you are in need of additional help, please let us know.

Thank you for allowing us to help you today.

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