Table of Contents
Advertisement
EVGA Z790 DARK K|NGP|N (121-RL-E799)
POST Beep codes
POST beeps are used in conjunction with the Multi-function Display to help determine
the root cause when your system fails to boot. However, modern motherboards also use
the speaker to convey helpful information, such as USB device detection. As a result,
users may become confused
about the number of beeps
emitted, making the POST
code beep - while still helpful -
not as useful as it once was.
Many motherboards will beep
1-2 times per USB device
plugged in at boot; some will
beep more based on functions
of the device. These detection beeps may occur at the same time as the system's POST
beeps, sometimes making it a challenge to separate the POST beeps from the USB
initialization. Since the Multi-function Display now fills most of the role previously held
by audible beeps, there are far fewer POST beeps to help debug problems, compared to
previous motherboard generations.
1 Beep: This relates to BIOS boot passwords. The BIOS will beep, indicating that a
password is required to boot. If you incorrectly enter your BIOS password when
prompted by the BIOS, you will receive one beep.
4 Beeps: This is an error relating to some small recovery errors, which can occur when
coming out of sleep/hibernate.
5 Beeps: This error is stating it cannot detect a keyboard. This can also indicate a video
card is not detected.
6 Beeps: This relates to either a failed BIOS update, or a failed Intel
update.
7 Beeps: This relates to a failed CPU INIT request. EFI/UEFI Reset protocol is used
when a processor INIT call is used and was not successful. This returns either an
"EFI_UNSUPPORTED" error if the INIT type is not supported or an
"EFI_Device_Error" if the error occurs while generating the INIT; either will result in
seven (7) POST beeps.
8 Beeps: Error given when an incompatible PCI Express device is installed and cannot
initialize properly.
Beep Codes
# of Beeps Description
1
Invalid Password
4
Some of the Architectural Protocols are not Available
5
No Console Output Device detected
5
No Console Input Device detected
6
Flash Update Failed
7
Reset Protocol is not available
8
Platform PCI resource requirements cannot be met
ME Firmware
®
- 115 -
Advertisement
Table of Contents
