beep code

Check the memory modules to make sure they are seated properly,then take off the cover and listen to determine where sound is coming from,this sound like you may hae a problemwith the power supply which gives off a high pitched sound

I have seen this symptom the most with ASUS motherboards.

ASUS uses this dual-tone to alert you to a CPU health issue.

Potential causes:
CPU fan not reporting RPM, or reporting a slower RPM than the threshold set in BIOS.

CPU 'Core' Voltage out of spec for CPU type.

CPU temp sensor shorted by heat-sink paste and reporting a high temperature.

Chassis fan connected with no or low RPM reading.

By default, the CPU health warning is set to be active.

If you are sure that everything is correct, and the PC is booting, enter BIOS settings, and adjust the CPU health settings as required.

Sometimes, simply entering BIOS settings, and allowing the BIOS to detect and set the CPU speed and voltage, then saving the settings, is all you need to do.

Chas

Hope this help, for the siren beep i think it is the problem of your ram. Try to change to another slot and clean the ram with cloth/eraser. plur it back and try to see what the different.

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