My computer starts, fans continue to run and no display and keyboard, help? What is the price of a new motherboard?. Any suggestions, please? If the motherboard is not economical to repalce, how do I transfer the hard drive information to a new computer? All suggestions are appreciated. Thanks

Always start with power. Is the computer getting the correct amount of power?

Power supply should be checked to see if the three main voltages are okay. 3.3 Volt, 5 Volts, and 12 Volts, (DC), power rails.

http://www.playtool.com/pages/psuconnectors/connectors.html

1) If ALL of the LED lights were on at once they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts.

3) A typical Processor can use from 51 to 125 Watts. Just depends on what Processor it is.


Power Supply's three main voltages check out? Check the Electrolytic Capacitors on the motherboard,

http://www.capacitorlab.com/visible-failures/index.htm

http://www.youtube.com/watch?v=KN6_-8fYHo0

(Starts at 0:04)

http://www.youtube.com/watch?v=YCSNWi3UHf4

http://www.hardwaresecrets.com/article/How-to-Identify-Japanese-Electrolytic-Capacitors/595

The capacitors used on the motherboard are Radial Aluminum Electrolytic Capacitors,

http://www.mouser.com/Passive-Components/Capacitors/Aluminum-Electrolytic-Capacitors/Aluminum-Electrolytic-Capacitors-Leaded/_/N-75hqw/

For additional questions please post in a Comment.
Regards,
joecoolvette

Please try a new keyboard! I had mine go out and did the same thing! I hope this helps!

Check your RAM that it is installed correctly

HI friend,

one long beeb and two short beebs Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information,some couse of that issue is New hardware conflicting with old hardware or New hardware conflicting with old hardware or Connections not connected or connected properly or other hardware issue.Best solution is
If any new hardware has been recently added to the computer, remove that hardware to make sure it is not the cause of your issue. If after removing the new hardware your computer works it's likely the computer is either not compatible with the new hardware or a system setting needs to be changed to work with the new hardware device.Remove any disks, CD's, DVD's that are in the computer and if any USB devices (ipods, drives, phones, etc)
before all that please
Make sure all fans are running in the computer. If a fan has failed (especially the fan for the CPU) your computer could be overheating and/or detecting the fan failure causing the computer not to boot.
If you continue to to receive the same problem with all the above hardware removed attempt to disconnect the RAM from the Motherboard and turn on the computer. If the computer has a different beep code or if your computer was not beeping and is now beeping turn off your computer and try the below suggestions. Making sure to turn off the computer each time you're adding and removing the memory and then turning the computer back on to see if the suggestion resolves the issue.

1. Re-insert the memory into the same slot.
2. If you have more than one stick of memory remove all but one stick of memory, try rotating through each stick.
3. Try one stick of memory in each slot.

Thanks,

Please rate me.......

Great to hear! Please take a moment and rate this solution with a fixya rating; I'd appreciate it. Thanks!

hmmmm maybe you have a motherboard defect.... or try to change your mouse or keyboard with a new or borrow it from your friend then try it... if it has the same problem your motherboard is damaged.. ^^

One long steady beep means that either your power supply, system board (motherboard) or keyboard are no good. Since you said you unplugged the keyboard and got the same result aswell as the comment about the fan starting I can only assume that your motherboard is damaged, in which case I suggest you buy a new computer because the price you pay for a motherboard and service fees you could buy a new computer (or close to it). Before you do that though, you should replace the power supply first than if that doesn't work, exercise your options of replacing the motherboard vs. buy a new computer.
Let me know how you made out. Good luck.

continuous beeping is Power supply, motherboard, cpu, or keyboard problem. somecases it can also be the memory.

start with the memory then cpu and powersupply and finally motherboard.


let me know if the beep code changes as you change components, count the short and long beeps.

Try another PS2 keyboard.
Try a USB keyboard with a PS2 adapter.
Try resetting the bios using the jumper on the motherboard.
Try removing all of the dust you can from inside the case, reseating all the components and going through the process again. If you can't get it to recognize that a keyboard is installed and can't get the bios to continue despite the no keyboard error you'll have to replace the motherboard.

I have the same problem, the CPU fan spins, keyboard lights blink, no start up screen, or bios.
But, when I push a few times on the pc reset button, then the CPU fan is becoming still, the keyboard light are out and I can start the computer again in a normal way.
Can this one be a temporally solution for you too? Do you have any suggestion about?
I guess it can be an electricity dysfunction of a wrong fixed cable.