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Identified by "Yoga 12" next to right hinge. Released in July 2015.

5 Questions View all

Laptop turn on but screen black and beeping tune

Before the problem I shutdown my laptop and went to turn it back on by holding the power button. The screen went black but the esc key light is on and I can hear the fans running. I try holding down the power button and escape key flashes off and then back on with the f1 key, f4 key and capslock key light flashing on at the same time then flashes off. At the same time it makes a beeping tune, the best way I can describe it is 4 beeps then 2 beeps. The beeps are different pitches too. It then go's back to the state it was just before. It's my school laptop and I'm only 15, I really need a solution for this and I can't get my school to fix it since I'm on school holidays, please help.

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1 Answer

I’m not familiar with UEFI sound-related codes, but with my (albeit limited) UEFI experience dead/faulty RAM or CPU. You’d have to take it apart to see if the RAM and CPU are Socketed/Removable

Here is how to remove them if they are removable: if its a AMD CPU, it should have a lever or something like it or just pull out (DON’T YANK IT OUT UNLESS YOU DON’T SEE A LEVER)if its a Intel CPU, a lever should exist but there is almost always no drop-in socket.

As for RAM, there are 2 tabs on either side, pull them away from the stick of RAM and the ram will pop up 45 degrees (ish) if done correctly. AT THIS POINT (lol y caps) the ram can be removed and replaced.

PRO TIP: while you are reinstalling the cooler after checking the CPU, Use Noctua NT-H1 Thermal Paste here -> https://noctua.at/en/nt-h1-3-5g (my favorite thermal paste), that will improve performance.

BEST OF LUCK MY GUY—Austin (i hate this quarantine bullshit)

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