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I upgraded the CPU on my Abit KR7A Socket A 266MHz motherboard from a AMD Athlon XP 1700 to a 2600 which was the highest Athlon XP chip to support 266MHz, but it doesn't work. Any suggestions?

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  • kaufam7 Nov 19, 2008

    The computer will not post. The fans run and that's it. Do you think the motherboard might be fried? The computer kept shutting off and back on occasionally so I thought I had a virus or a bad hard drive at first, but these checked out okay. That's when I decided to check the CPU core temperature in the BIOS and found it was nearly 180 deg.F! It was still working, however, when I shut it down to blow the dust out of it and noticed that the CPU had become brittle and was disintegrating before my eyes. I upgraded the CPU, but it still won't post. What do you think?

  • kaufam7 Nov 19, 2008

    Okay...I did some of the suggested tests. The CPU looks okay under a magnifying glass, and was guaranteed to have tested good before it was shipped. I reseated it and it plugs easily into the socket. The original PSU (250Watt) was replaced with a more powerful one (350Watt) a couple of years ago, so I'm pretty sure it should be able to handle the new CPU (which is really still an old and obsolete CPU). I removed the memory, took out all the cards, unplugged the hard drives and made sure the PC speaker was plugged in, then turned it on. There were no beeps at all. A red light on the motherboard came on momentarily then flashed once if that means anything. I also noticed a slight burnt smell I hadn't noticed before. I think the motherboard fried along with the CPU. What do you think?

  • Simon Downey
    Simon Downey May 11, 2010

    David Kay pretty much already provided most of the info you need.

    To clarify though, do you mean it won't power on at all? As in no Post?
    Or do you mean the OS won't boot?


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I bought a fujitsu siemens scenic e600 with windows os apparently.i connected it all up to find that the monitor goes instantly into sleep mode (so no monitor) also on start up the keyboard doesnt flash, the mouse lights up tho,inside under the hard drive on mboard there is a red light on constant cant do a thing with it ,any ideas

Posted on Dec 29, 2008

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Under no circumstances should any CPU get that hot with proper cooling and functioning hardware.


DO NOT ATTEMPT TO PLUG THE BOARD BACK IN. IT IS A FIRE HAZARD.

Unfortunately, the board is done. Sounds like there was a failure somewhere on the board that probably caused the old CPU to be messed up. The bad news is that the new CPU may be jacked up if the board was bad and there's a burning smell. Even though the chip may look okay visibly, doesn't mean that it is.

Scrap the board and try to sell the CPU as-is and start from scratch. Socket A isn't all that common anymore and newer boards with a higher frequency bandwidth are pretty cheap and getting cheaper by the day.

I suggest newegg.com... You could easily get a new mobo and cpu for well under $100.

Sorry,
Simon.

Posted on Nov 19, 2008

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Hi Kaufam,

I'm sure you already know this, but it might be worth plugging in your pc speaker (if not already) unplugging your memory chips, hard-drive cables and all pci/agp cards and trying to see if the computer beeps at you during start up. You can then use these beeps on a lookup table on the motherboards manual to determine the error.

I hope this helps, otherwise try reseating it (again I'm sure you'll have tried this), try the chip in another board if you have one, ensure the PSU is powerful enough to power it (stupid I know!), and lastly you could have been provided with a dud chip, return to sended and hope for a working one. :(

Sorry I couldn't help much more than the obvious.

David

Posted on Nov 18, 2008

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What does concern me, is if the motherboard chipset used is the same. This was the stated information.

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http://en.wikipedia.org/wiki/Integrated_circuit

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