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I think I had this kind of issue before on my computer. I sorted it out. First I check the motherboard and wiring inside if there are any wires touching the fans because of the buzzing sound. Found nothing. I noticed that the buzzing sound came from my hard drive. It seems that it's not getting enough power that's why its struggling to spin. What I did was I changed my power supply to higher wattage and everything was fine after that. You can give it a try though. If it still the same issue, you might as well try a different hard drive.
several things could cause this problem your power cord may not be supplying enough voltage or amperage or both. the ram could have been compromised or the hard drive may not be initializing. i would look at the motherboard last. illiminate the easy stuff first. check voltage level on your ac power supply. try different ram open the hard drive bay and make sure it is comming up to speed.
certain thing happen in a given order during the boot process. the bios loads so the start up starts it loads to the ram and bring the hard drive up then video. your unit is stopping in the very beginning of these steps. follow these steps to isolate the cause.
your not activating the power switch, double check the user manual and be recheck the pwr pin on the header, some are horizontal some are vertical.
if that still doesnt help use a phillips head screw driver and short the two pins you think they are, if they are the pins you were using you have a bad power switch (try using the reset switch as a power switch) if those dont start it try a differant pair until you find the power pins.
You have an obvious electrical problem. It could be that the switch on the power module is faulty.
Remove the hinge cover and depress the power switch on the power module. If the system is starting without hinderance then the issue is the tab under the hinge cover is not making proper connection with the switch below. If the same problems persist when you go directly to the power module then the module has a faulty switch. Radio shack has those tact switches for $3.58. You can either replace the switch or replace the module.
First off all download the manual
> Make sure that motherboard is placed correctly
> Front panel connection plugs are there on the manual (4plugs POWERLED,HDD LED,reset switch,power switch) LED plug has positive negative...be careful
it could be your power switch, veriy that it isnt the power supply by
1.) un-plug it from the main board
2.) look at the main board connector(one coming of the power supply)
3.) you should see green wire and next to it a black one
4.) using a paper clip bridge the too wires
5.) if it works proceed to net step if not get a new power supply
to check case switch and board switch
1.) plug in power supply to main board
2.) look at the pins where the power button connects to
3.) using a metal object (blade screw driver) bridge the pins
if the board should start up>
then its your power button on the case that is bad, you can try to repair it, chage it or buy a new case,
if it doesnt work.
1.) ensure that jcms(jumper to flash the bios) is set correctly
2.) unjack each drive one at a time to see if any is causing stalling
3.) get a new main board