Check all cables that connect the keyboard, storage drive, video card, RAM, graphics card, CMOS battery, SSD, and other components. However, if you hear no beep on startup, it means that POST is not working at all.Īt this point, ensure that all the cables, including the power cable and other connections, are intact.

The beep code suggests that the video card is missing. During this operation, if you hear one or two long beeps, it is a sign that POST is working. To do this, pull out the video card and again try to boot your system. The first step is to check if the POST is working accurately or not. Let's learn how to fix no POST beep codes issues on a computer. Part 2: How To Fix No beep Codes, POST, or Input to Monitor Issue? For that case, consider using the POST test card to see the error in digital form and resolving it. And if there is no beep sound when the system starts even when you have made unsuccessful attempts to start the computer, it means there is still hope. The beep codes can be very helpful in determining the root cause of the problem. It is an audible sound of the error message. However, if the BIOS encounters a problem but hasn't booted far enough to give the error message on the monitor screen, beep codes are used for notification. The moment POST detects a problem, it displays an error message on the screen. When a computer starts up, it runs a POST, i.e., Power-On Self Test, to check if there is a problem with the system. To understand the no beep on startup or multiple beeps problems, we first need to know about the POST and beep codes. Part 3: How to Recover Data What If There Is a Problem with the Hard Drive?.Part 2: How To Fix No Beep Codes, POST, or Input to Monitor Issue?.

Macbook pro 3 beeps no startup