Question about Intel D850MV Motherboard

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Motherboard Problem? I have the D850MV mobo with four 64MB RDRAMs installed and an Inno3D video card, Maxtor 40GB HDD and DVD R/RW drive. When I plug it into the power outlet the HDD indicator lights up, the cooling fan of the switching power supply turns on but there is no activity and no display on the monitor. I opened up the case and checked the power supply voltages and all were correct. I noticed that the SMD LEDs on the board are also lit but the CPU fan is not rotating. I can hear a faint buzzing sound within the vicinity of the P4 processor. The power switch has no function as well as the reset switch. Could this be a motherboard problem?

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Re: Motherboard Problem?

It seems that the problem may not be in the fan or related to heat. Even with a "hot" old P4 it takes about 1-2 minutes before it reaches any higher temperatures, this since it's not having any load until you boot into windows. I think it might be faulty or leaking c apacitors - a common problem on older boards. If you look at the capacitors on the top - are they bulgy or flat ? if not perfectly flat they might be faulty and thus giving you the symptoms you describe.

Posted on Apr 30, 2007

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Re: Motherboard Problem?

Chances are that until you solve the problem with the CPU fan, the system will not boot. Is the fan plugged in? Most CPU fans plug into a special connector (known as a "fan header") on the motherboard (the connector is often labeled "CPU FAN"); CHECK CAREFULLY to be certain that the fan is still plugged in properly... If you can get the fan to work again, the system just might boot up and begin working again... if you can't get the fan working properly again, buy a suitable replacement; whatever else you do, do NOT try to run the computer without a working CPU fan. Good luck; hope this helps you sort out the problem...

Posted on Apr 01, 2007

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