When I hit the power button the fans begin to start then immediiately shut down. When I hit the button again nothing happens. If I unplug it and then hit the power button it does the same thing? I have tried another power supply and it worked the first time then it started doing the same thing. I put the original back in and after several tries it started and ran till I shut it down. Whats up??
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Re: fails to start
The problem is your fan may not have got proper power supply....the wire connecting the fan and power chord should be perfect....if there is a loose connection your fan may not get proper power supply and then it will not run.....this is the main probem.....just check the wire connection between the fan and power chord has been properly connected and there are no loose connections....i am a software engineer....and have experience in it....try this ...it will 100% solve your problem.......
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Unplug from AC, open the case, clean if necessary, reseat the memory mods, use Electronic Contact Cleaner spray on contacts, plug in, push the on/off button. Does it begin to start, and in a few seconds completly shuts down? No LED's , no fans, nothing? Sounds like a PSU failure. Mine went out in 6 years.
Make sure all fans are running power supply one to hehe Maybe a bad power button? I had a gateway that did some thing very close to that because the cpu fan was not turning and a hp that did that because the power supply fan was not turning. Thats where I would start then make sure the mem is seated good and not bad you know the drill ;) if you replaced the power supply with a factory replacment it should be a voltage or wattage problem. Might also try a hard boot the power plug take the cmos bat out hold the power button down for 20 or 30 secs some people say to leave the cmos bat out and try to fire it up. I know that works on some laptops but I always had better luck putting it back in for desktops cant hurt to try it. If you have two ram sticks in it pull the # 2 one and try to fire it up if nothing changes swap the # 2 one with # 1 leaveing slot 2 open and try it that will tell ya if it is a bad ram stick I dunno just my two cents hope it helps
few things to try you can disconect the hdd the dvd rw drive and anything elce conected to it appart from the motherboard and moniter then try again (just becouse you tryed to check the psu it my well still be completly broken ) i would probly suspect the motherboard in this case thought i would try a new psu first as this cost less (10 pounds from ebay) hope this helps ps reset the bios and cmos too
Make sure you are plugging in your P.S. to Motherboard properly. This can happen if you are off by one pin on a 20 pin Supply on a 24 pin Motherboard. If you never opened the case and it just started happening, maybe one of your cards came out of its slot or your CPU Fan is not running.
This could be a number of issues. What you are referring to is known as failing to post. The culprit behind this error is most likely motherboard or memory. If you have 2 sticks of memory, try taking one out. If nothing swap memory again. Still nothing, have motherboard looked at.
Most likely, either the power jack inside the machine (jack itself or solder joints) or the plug on the power cord was damaged; obviously the plug is only a few dollars to replace, the jack also only a few dollars, but much more labor intensive. My experience tells me it's probably the power jack. If you have any way to externally charge your battery and, using it, find the machine operational, that pins it down pretty well. When the external supply is used, the internal battery is supposed to be switched out of the load circuit and into charging mode.
Remove the power cable and hold down the power button for about 30 to 60 seconds. plug the power back in and see what happens. If fail look at the back of your computer ans make sure that the fan for the power supply is on. Also make sure that the red switch is set to 115V and not 220V. This is also located in the power supply.
If al has failed your power supply is no longer working and will need to be replaced.
Whining usually comes from the hard drive and indicates that it's beginning to fail. Locate the hard drive in your machine, hit the power button, then listen to see if the sound is coming from the hard drive area, if so, then the hard drive is beginning to fail. As far as it failing, it may go the next time you turn it on or it my last for months, hard drives a funny that way.