Question about Intel Motherboard
The only common denominator is the computer power supply.
It is also possible that a power regulator on the motherboard is bad. I suspect its is the 5 volt power rail. The two common supplies on your motherboard are 12 volts and 5 volts. USB uses the 5v supply.
The simplest solution is to borrow another similar power rated computer power supply and put it in yours to see if the problem is fixed. If your power supply is rated at (for example) 250 watts or even as large as 400w, make sure the replacement is the same rating or even larger ie replace 250 w with a 250 w or a 400 w, but do not use a lower rated power supply. ie dont try a 250w to replace a 400w supply.
If the problem is still there another motherboard is the likely next step.
Before spending bucks, you could try disconnecting anything not really required to see if the power supply is indeed failing (often a burning smell from the rear fan is a good indicator). Disconnect things like dvd drive, cd burner, anything on the USB ports eg printer, external hard drives, modem, extra cards inserted into the motherboard on PCI slots etc etc, but leave the mouse and keyboard if they are USB devices. This will ease the load on the power supply and/or the motherboard power regulators. Basically you want a motherboard with only RAM memory, a processor and a video card with only a keyboard, mouse and monitor and the main bootable hard drive connected, and nothing else. See if you can get it working without the extra bits attached. you could then try shutting down and re-attaching devices one by one until the problem occurs. This could either prove the last connected device is drawing too much current, or more likely the power supply is failing as the load increases.
My bet is the power supply and they are cheap to buy. Make sure you buy the right supply. It might be an ATX supply with a 20 pin main connector which attaches to the motherboard (big chunky white connector). There are 24 pin models which don't generally work on the older motherboards that use the Celeron chips.
Posted on May 03, 2010
Testimonial: "Tried it Steve. Found out it was a defect on the motherboard. Biotech has a warranty on it. Thanks for your cool tips. Blessings."
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Posted on Jan 02, 2017
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