Recent content by wastedyears

Thank you very much for assistance. I've checked your guess. I unplugged display cable from motherboard to exclude any chance of a power drain or electric short of display system or inverter board. But laptop still shuts off after 1 sec since power on. And starts with external monitor. Looks...

I've discovered a new situation - laptop only starts with external monitor but internal lcd remains black. OS loads. If I switch in BIOS to internal LCD laptop shuts off after 1 sec since power on.

Yes, i tried with no CMOS battery. I replugged power connector. Either way, no changes. Ultimately I can't realize why laptop being started with no ram stays powered after it makes several beeps - fan rattles led lights - if there is a power problem. If there is not a power problem - why i can't...

No upgrades were done. While testing I removed all the hardware parts - ram, hdd, dvd, wifi. I tried another cpu, held power button for 30 secs. Every try displays nothing on the screen. Google said it might be electric short or capacitors overcharge but it's beyond my skills.

Hello guys. I've got issue with my old Thinkpad T40 laptop with no battery. It turns off after 1-2 secs after I press power button. At start some actions occur - led lights, fan rattles, display stays blank and suddenly it's game over. After that, I can't start it again with power button unless...