Opened my laptop to clean up -> bios won’t boot

[joro.gecata]

My first time opening my Lenovo y510p. Watched a YouTube tutorial. All done, but when I tested it, the bios wouldn’t load at all, how come windows.
First I had one of the rams placed badly and that caused me the laptop to restart all the time, now wouldn’t even load jack.

To fix it I tried everything all over again and tried to replace the rams. Seems like I have no Hdd anymore . It even makes some creepy noises like scratching

 

[anbu13]

Hi, Probably you have messed up the RAM or HDD. If you have 2 RAM modules, add one at a time at each slot and boot the laptop. Try booting without the HDD. Somehow you should see the BIOS screen anyway. Then the RAM is fine and check the HDD.

 

[joro.gecata]

It doesn’t work. I tried every ram in each slot and without the hdd. Same thing as followed: leds on, fan spins once, no consecutive actions, black screen. No sounds of booting anything

 

[anbu13]

It even makes some creepy noises like scratching

Find where noise is coming from. It could be HDD or Exhaust fan. Check all the connections again if you missed any.