Laptop Won't Start-up - No Power

KennyGsmooth16

Honorable
Oct 11, 2013
5
0
10,510
Hey all,

I've posted about this issue previously, but it appeared that the issue worked itself out. Unfortunately, it's back, and I need some help. For context, I'm having the problem on a Lenovo Y40 (not that old of a machine). I recently replaced the battery (it didn't hold a charge) and I swapped out the HDD for an SSD. Machine ran great and speedy until it would randomly not let me turn it on. I can hit the power button when the battery has full charge, and nothing happens. When I pull out the battery, and attempt to just run off wall power, it also will not power on. My inclination is that it's a short somewhere in the machine; if that's the case, I'm not even sure where to begin looking. I thought maybe the laptop was just completely dead, but occasionally it'll turn on! One another detail, sometimes when I can get it to boot, after a few minutes the backlight will turn off. If I look really close, I can see that the laptop is still running fine, but the screen backlight just shut off. I'm a computer science major in school, and I really can't afford another laptop right now (but it's sorta necessary that I have one). If I could get this fixed, it save me a LOT of headache. Any ideas?

Thanks everyone,
Kyndle
 
Solution
If it does not turn on even on wall power with no battery, that points to a motherboard issue. If the thing is in warranty, contact Lenovo. You can also try to remove the CMOS battery, the normal battery and wall power, hold in the power button for about 30 seconds, then without the CMOS battery in, try to turn it on using just wall power. If that works, plug in the CMOS battery and try it again. If that does not work, you probably need a new motherboard although trying a new CMOS battery won't hurt and is a lot cheaper.
If it does not turn on even on wall power with no battery, that points to a motherboard issue. If the thing is in warranty, contact Lenovo. You can also try to remove the CMOS battery, the normal battery and wall power, hold in the power button for about 30 seconds, then without the CMOS battery in, try to turn it on using just wall power. If that works, plug in the CMOS battery and try it again. If that does not work, you probably need a new motherboard although trying a new CMOS battery won't hurt and is a lot cheaper.
 
Solution