-
For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.Subscribe Now
820-2850 always beep 3 times
- Thread starter protocold
- Start date
If you tried correct RAM module, then bad slots.
You can check them with DDR3 test card.
You can check them with DDR3 test card.