thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

IT Support & Hardware · Foundational

POST Beep Codes

Audible patterns from the motherboard that indicate which hardware failed during POST.

Definition

Beep code meaning depends on the firmware vendor (AMI, Award/Phoenix, Dell, HP), so always check the manufacturer documentation. A single short beep often means POST passed. Continuous or repeated beeps commonly indicate memory or video issues.

Example

On many AMI BIOS systems, three short beeps indicate a memory failure.

Exam tip

Beep codes are vendor-specific; look them up rather than memorizing a single table.

Related terms