Question about Intel Desktop Board D845PEBT2 Motherboard

2 Answers

Computer does not boot

Intel Motherboard D845PEBT2 with 250 GB segate harddrive.

I started a few days ago, when I got a thermal event warning and the computer shutdown. This happened sometime over night so the computer was off for a good two to five hours. After this the computer would go into the boot phase and the fans would churn a few seconds and then shut down.

I noticed that by removing the motherboard power, the fan and hard drive would run but as soon as the mother board power was connected the same thing of a few seconds of churn and then everything stopped.
If I kept the power button pressed on this would go on for little longer time but would not boot.

After multiple attempts over a period of 6 hours, it stated all by itself and ran for a few days and quite a few reboots.

Today, while processing a large/complex photoshop job, the computer shutdown by itself and then at each reboot, when WinXP Pro would start, it would shut down.

I started it in safemode and uninstalled a software (photoshop plugin installed by installer) to make sure that it was not causing any issues.

Now it would not boot at all. No fans, no hard drive, although the motherboard light and the LAN light comes on. But when I try to boot it, no results. Even removing the motherboard power cable does not help. Still no activity.

On strange thing I notice is that my room light dips (flickers) a bit when I turn the computer on. This could be a power supply issue. Or could the CPU have been damaged due to over heating? or a capacitor issue on the mother board. Are there any fuse in the power supply or motherboard that could have blown?

Any one here aware of this. CPU light on, LAN light on, but no boot activity, no harddrive activity, no fan come on and the room lights dip when the computer is turned on.

If it is a motherboard issue, can the motherboard be repaired? Replacing would be another uphill task with Win XP Pro.

Thanks

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  • 2 more comments 
  • Anonymous Apr 21, 2009

    Thanks **** and Gunnifo.

    Last time it failed to reboot, it tried ****'s approach and disbled video card, memory, DVD drive etc and still it would not reboot. So the area that were left were the power supply and the motherboad.

    This time nothing seem to be working. I can try replacing the motherboard and the power supply. First the power supply and then the motherboard.

    Can you suggest which new motherboard would be a better replacement for Intel D845PEBT2. I do a bit of graphics and video work.

    Thanks

  • dkparsai Apr 22, 2009

    Thanks guninfo. Power Supply was the issue. Replaced it and things are back to normal. PC is up and running.
    Thanks again to both you and ****

  • dkparsai Apr 22, 2009

    Thanks guninfo. Power supply was the problem. Replaced it and the PC is up and running.

    Thanks again to both you and ****.

  • Dick
    Dick May 11, 2010

    Your computer needs to be thoroughly tested to figure out exactly what the problem is. Have you figured out what caused the thermal event warning? You KNOW something happened there, find the source of that problem and fix it before you start on any other problem.

    Be methodical in your troubleshooting. Write down everything you try and the results. Change one thing at a time.

    The problem you describe could be anything - power supply, video card, memory, motherboard. Coupled with the thermal failure I would guess a fan failed and caused something to overheat and fry itself. Perhaps you got lucky and the system shut down before any damage was done. Only testing will determine that. You have a long road ahead and it may be more cost effective to replace the computer. How much is your time worth?


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Have you tried to boot into safe mode during the PC's post? Quicly tap the F8 key while booting. Choose LAST KNOWN GOOD CONFIGURATION and press enter.

It sounds like a bad day for the motherboard. You actually unplugged and plugged in the motherboard while it was in operation. Hopefully you didnt fry it, but chances are rather high. Go to Newegg.com, or a local PC reapir store in town and buy at least a new, not used, 350w PSU(power supply unit).

Before you do anything else, buy a few cans of commpressed air and clean the inside out. Dust is a PC's worst nightmare.

Try these things and see what happens. But never ever unplug the board power while it is running, or in your case, trying to.

Posted on Jun 10, 2009

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If you computer over heated, this could have caused the board or power supply to short. I would first start by trying a new power supply unit (since this is cheapest of the options). If that does not work then try replacing the motherboard and/or processor. Since you not getting any power, my guess is motherboard or power supply unit.

Posted on Apr 20, 2009

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