Computer won't power on
Hello I have a laptop that I was on and all of the sudden it just powered off without warning. After it powered off, I can't get it to come back on. I tried different AC adapters so I know it's not that. Also, I had the battery tested and it shows good. I tried powering with just the battery, with just the AC adapter, and with both. It won't power at all. I did notice that the LED lights will flash for about 1/2 a second and then go out when I press the power button. I would send it in but Gateway told me it would be $300 for "out-of-warranty" repair. Thank you so much in advance for your help.