Chosen Solution
Hi everybody! I have an ASUS X540LJ laptop for 2 years and some days ago I tried to apply some Thermal paste (HT GY260) and after I tried to turn it on it didn’t! (I’m not a newbie in computer and I’m absolutely sure I haven’t touched or broke anything on motherboard) Here are some other information about it: both HDD and Battery LED’s work and batteries are full charge nowAfter pressing power button, the fan moves a very very bit (Like there’s not enough power to spin it) I know you’re trying to help me but I’ve already tried many possibilities like: Removing batteries , using external display (VGA and HDMI) , testing the motherboard without any batteries, discharging capacitors, USB sockets have power (I charged my phone with USB) , the fan and LED are just fine and work properly (I’ve tested them both) One told me that maybe the BIOS is the problem, but I’m sure if it’s all about BIOS, the fan should worked and something has to show on the screen when the laptop is on. I really need your help! Thanks
Normally when you see computer start for second then stop, it’s a CPU or RAM issue. Try re-seating the CPU and re-applying thermal paste. When finished dump the CMOS. Also try testing with different ram sticks if you have some.
Have you checked the fan? Are the blades clean. Does it spin freely when power is off?
Have you tried unplugging and reconnecting the power cables to the battery? have u tried using a diff battery? is the battery or it’s cables damaged? is connectors on the mobo for the battery damaged? if nothing still with these then I’m lost. Because normally as the first answer said that blip of power and then off means it’s a component being seeded improperly. But if not that then it’s either the battery or the PSU which in this case is irrelevant. So im lost. U could check the front and back of the mobo for blown components or damage to the board. Perhaps it got corroded somehow. Either way that’s a toughy best of luck mate.
