I can't get my pc to turn on so i change the power supply unity and i still can't get it to boot
Hi Dennis,
It could also be the Hard Disk Drive. One thing I found is , DUST can cause any PC to shut down or cause burning scents. Open the cover and if you see lots of dust build-up, use a vacuum or those compressed air-dusters (also known as canned air or compressed air,) is a product used for cleaning electronic equipment and other sensitive devices . The dust is usually the # 1 cause of any computer failing to boot up, as there is no ventilation on those fans inside.
Second could be the Hard Disk Drive. You may have to replace it if you hear any clicking or a message appears on the screen (Operating System Not found) or the computer doesn't boot up into windows. Hope this helps
SOURCE: eMachine T2824 does not turn on
There are just too many eMachine models to be familiar with every one, however, as a preliminary inspection, remove the side panel, and turn the computer on to see if you see a green "Health" light. This will give you an initial clue as to how to pursue the problem. eMachines have historically had power supply problems. If you do not see a green health light on the motherboard, then your power supply is defective. A power supply supplies various voltages + - 5V, + - 12V ,etc. A power supply can be easily tested by a local shop with the proper test equipment. You might start there if you are a DIY! Short of that, you can purchase a power supply for under $65.00.
SOURCE: Emachines problem... PSU works but comp doesnt turn on
Hi, I don't want to tell you a color because it could be different than the actual. Look at the front of the computer and trace the wire that goes to the switch and follow it to the mother board. If you have a volt meter you could measure the voltage on the mother board pins. The mother board should also have silk screening that says start or on. On the case there should be a drawing of the mother board you can look there as well. I have another critical question. Do you have a green light on the motherboard? If you do have a green light, you can try wiring the pins together that the switch is wired to. (I do not have a drawing of this mother board so I can't tell you that there are three or two pins) if you cannot start the computer when wiring the pins together than you can try reseting the cmos or replace the onboard battery, emachines have a bad reputation for dieing. If you do not have a green light it maybe gone. The case will accept another ATX motherboard if that is the situation. You can go and buy another motherboard. To save yourself heartache make sure you can reuse your memory and hard drive type IDE (ata) VS Sata. You can go on a real learning experience by not paying close attention to all of your connector types.
SOURCE: old emachine T2642 will not
It sounds like a dead motherboard. Try removing the CMOS(BIOS) battery and replacing it. Then try removing and replacing the CPU as well. If you get the same result then you might be looking at replacing the motherboard.
Regards
SOURCE: Emachine W2047 No BIOS Start Screen
You can test the power button. Remove the wires from the power on pins on the motherboard. Momentarily jump the two pins with a small screwdriver. If the computer starts the power button is bad. If it still doesn't start then something else is wrong. Did you test the memory? Also do all of the fans work, especially the CPU fan? It can't hurt to test with the other PSU. You know the HDD is good. Test one piece of hardware at a time and hopefully you will find the problem.
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