I just installed a new ECS motherboard into an older 98 machine. I am pretty sure I have everything plugged in but when I connect the power to my computer there is a high-pitched whistle sound, not very loud but not hard to hear, and the noise continues when the computer is turned on and the POST will no appear. The Screen stays black. Help!
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Re: Mother board problem
The noise must be coming from the power supply. The only thing running before you press the power on button is the PSU.
Unplug the power cord on the PSU. Check the back of the PSU for a red slide switch. Make sure it is set for 115v. Than disconnect the main power from the motherboard. Plud in the power cord, (still hear the high pitch noise?). Swap out your power supply.
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you may have misplaced the power switch connections which come from front pane to the mother board
there are many of them like pwr switch, reset switch
hdd led etc
check *********** board it will be indicated where to connect the pwr switch pwr led etc
think it has somethign to to with the compability, example windows xp cant have directx 10 only 9 and lower even tho the graphics card is direct x10 compatible. i dont know much about windows 98 but i am pretty sure thats the problem