Patent ID: 11934237
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A motherboard assembly comprising a hybrid cooling system, the motherboard assembly comprising:
a motherboard comprising a two-phase cooling zone and an air-cooled zone;
a coolant container comprising an upper portion and a lower portion, an upper cross-sectional area of the coolant container having a greater surface area than a lower cross-sectional area of the coolant container;
a lower surface on the lower portion of the coolant container, the lower surface being configured for attachment to the two-phase cooling zone of the motherboard to form a hermetically sealed enclosure that encompasses a first computing component in the two-phase cooling zone, the hermetically sealed enclosure being configured to retain enough dielectric working fluid to submerge the first computing component in the dielectric working fluid;
an air-cooled heat sink;
an upper surface on the upper portion of the coolant container, the upper surface being configured for attachment to the air-cooled heat sink such that the air-cooled heat sink is positioned to condense vapors formed from boiling of the dielectric working fluid and to cause condensed dielectric working fluid to return to a pool of the dielectric working fluid that comprises the first computing component; and
a shut-off valve coupled to the coolant container, the shut-off valve being in fluid communication with an interior portion of the coolant container.