Server and server liquid cooling system

A server, comprising:

• a computer case provided with a first liquid cooling cavity, and a first liquid inlet hole and a first liquid outlet hole that are in communication with the first liquid cooling cavity;
• a high power consumption device and a low power consumption device that are provided in the first liquid cooling cavity;
• and
• a cooling plate assembly provided in the first liquid cooling cavity and corresponding to the high power consumption device, wherein the cooling plate assembly is provided with a second liquid cooling cavity, and a second liquid inlet hole and a second liquid outlet hole that are in communication with the second liquid cooling cavity, the second liquid inlet hole is in communication with the first liquid inlet hole, and the second liquid outlet hole is in communication with the first liquid cooling cavity;
• wherein the high power consumption device comprises a first high power consumption device and a second high power consumption device, and a power consumption of the first high power consumption device is greater than a power consumption of the second high power consumption device, the cooling plate assembly is thermally connected to the first high power consumption device, the second liquid outlet hole faces the second high power consumption device, such that coolant is capable of flowing into the second liquid cooling cavity through the first liquid inlet hole and the second liquid inlet hole to perform heat exchange with the first high power consumption device, the heat-exchanged coolant flows into the second high power consumption device through the second liquid outlet hole to perform heat exchange with the second high power consumption device, the heat-exchanged coolant flows into the first liquid cooling cavity through the second liquid outlet hole to perform heat exchange with the low power consumption device, and the heat-exchanged coolant flows out through the first liquid outlet hole.