My Acer Laptop make 3 long beeps and than 2 short beeps. I can listen that the fan is still working but the screen is black. I removed the Ram, i can still listen the beeps. I oslo removed the HDD ( so no Ram, no HDD) amd still i can listen the beeps and the screen is black.
Do you have the laptop’s manual? There you may find information about the post codes. The meaning of those beeps may be different, depending on the motherboard manufacturer. Could you tell me the motherboard’s model? In general three long beeps and two shorts may indicate a motherboard issue. In that case, I would recommend you to contact the manufacturer’s technical support. Let me know if there is any progress.