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Re: Power Supply for L7VMM2
Well,if you are sure that the new power supply is new and ok,than more than sure,if you dont have any response from the mainboard,that it is damaged by the high tension who allready burned your initial power supply. I suggest you to visit a specialised service because for now its nothing you can do more.but first be sure you have a quite functional new power supply. bye
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I had an Emachines W3609 that did the same thing, I changed the 350-watt power supply with a 550-watt and it still shut off, even using the newer one. I thought just the first one was bad but I guess not. It had more than enough power to power it up but nothing. And it used to randomly restart at times and then just shut off. Try and get a new hard drive maybe that will help. Good luck!
Anytime. Just in case you there is any way you can get video to display. There is a setting in bios to change what controls the display adaptor. You might want to try to reset your bios and see if you can change this setting. Figure there is nothing you can hurt at this point.
Just remove the "watch battery" that is on the motherboard for a couple minutes and try to start the computer. Also you might want to look for some pins on the board that say something about bios reset jumpers. Normally you short the two pins then remove and boot. Sometimes you short-boot-shutdown-unshort-boot again. I'm thinking though if you can get in there you can set your display to pci or agp or whatever kind of video card you have.
There is no specific power suppl that you need. The only differce is the wattage 300, 350 , 500 etc. Your motherboard will work with all types not to worry. The only reason you get a higher wattage power supply is if you plug in a lot of stuff. say you have 3 HDD and 2 CDROMS then you would need the 500 Watt power supply.
Sounds like you have a bad power supply or motherboard. The power supplies in eMachines are not known for reliability, so try testing the system with another one. If you still have no video, you should replace the motherboard.
I think you have overheating problems Check all fans are working and vanes are clean including power supply one Check heat sink on CPU that the vanes etc are clean and clear of dust and fluff Give case a vacuum out including all vent holes also the ones on inside case of power supply see how you go this problem is usually the cause of persistent reboot
it does sound like a power supply. you can pick one up for around 80 bucks retail. they aren't that hard to install. 2 plugs on the mobo and one for each drive you have installed. all you do is unscrew the current power supply (4 screws on the back), then unplug all wires connecting the power supply to the components. then take out the old power supply and work in reverse with the new power supply. if the computer doesn't work after that, it is possible that you need a new mother board. in that case, personally i would return the power supply and start looking for another computer. but hopefully it is just the power supply.
it seams that the motherboard has some power problems. Check on the motherboard for burned or blackened components, or for capacitors that are looking like they are going to blow (inflated on the top), u can do the same to the power supply. If so change it ! Also maybe the power of the house has problems that the computers power supply cant handle (that can ruin the motherboard or other components ) U can also try to isolate the motherboard from the case (there might be a short between the motherboard and the power supply through the case metal ... )