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Re: acer laptop will not turn on
Try removing the extra RAM, if this fails, check the chaeger with a voltmeter and an oscilloscope if you have one, if this fails, check the jack on the laptop, and if that's in good shape, then it is likely the board was subject to static when the new RAM was installed or it failed of its own accord, either way, the system will probably need a new motherboard, or it may need a CPU, but even if the CPU was toast, the charging LEDs would light so it is very likely to be the mobo
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It looks as if the LED code would indicate a memory issue. Three blinks in a row.
Turn the laptop over, remove the panel over the RAM, remove the DIMMs (it will likely have 2 in it), place one in at a time and try powering the system on.
One of the two is likely bad although it is possible (although very unlikely) that both are bad. It should boot up when the good DIMM is in place. Once you have identified the bad one, buy a replacement or possible choose to upgrade the total amount of RAM.
Remove the main battery and power supply charger adapter from the laptop, wait a few minute to get rid of any residual charge, now install the battery, power up! if no change remove battery, next plug the power supply back in, power on, if yes! the main battery is bad and needs replacement. If no change reply to this message so I can help you further. If you having low memory issues, the ram needs to be upgraded.
Hi, First of all you have to determine whether it's the battery, charger or the laptop itself. Remove the battery and boot the laptop on AC power only, if the laptop boots up you can rule out the charger and the laptop, you may need a new battery if that is the case.
Try running you laptop with the battery and the AC adapter. If by plugging in your adapter there is no light indicator likewise or no powering up, then presumably there is a problem with the power supply circuitry in the motherboard. Normally the laptop should work with just the adapter, just the battery or both the battery and the adapter. If it will not perhaps your best bet is to seek professional repair service since this would require opening the motherboard. In most instances, this involves an smc fusible link, regulator transistors or even just cold solder or loose connections.
Hope this be of some help/idea. post back how things turned up or should you need further information.
Good luck and kind regards.