Yanhua motherboard began to ring four times.

The reason is that the CPU is overheated. According to relevant public information, the main board of Yanhua rang four times when it was turned on. This situation is the system alarm sound of CPU overheating, mostly for dust removal inside the host, cleaning the CPU radiator or replacing a new CPU fan. Advantech is a global leader in the intelligent system industry. Since the establishment of 1983, Advantech has focused on automation, embedded computers and intelligent services, and strived to become the most influential leading enterprise in the field of smart cities and Internet of Things.