Do these help in any way? (From https://itigic.com/beeps-on-asus-msi-asrock-and-gigabyte-motherboards-meanings/?expand_article=1 )
Short and constant beeps: error with RAM memory refresh.
Two short beeps: RAM parity error.
Three short beeps: RAM read / write test failed.
Four short beeps: system clock error.
Five short beeps: CPU error.
Six short beeps: keyboard controller error, or keyboard not detected.
Seven short beeps – General error, usually due to CPU or RAM.
Eight short beeps: graphics card error, check that it is installed correctly and that the power cables are connected.
Nine short beeps: ROM error. A Clear CMOS generally does not solve.
Ten short beeps: ROM read / write error. A Clear CMOS could fix it.
Eleven short beeps: CPU cache check failed.