公开(公告)号：US20220390992A1

公开(公告)日：2022-12-08

申请号：US17342237

申请日：2021-06-08

Applicant: Quanta Computer Inc.

Inventor： Chia-Ming LIANG ,  Jen-Mao CHEN ,  Hsiao-Ching CHEN ,  Yu-Tang ZENG

IPC: G06F1/20 ,  H05K7/14 ,  H03K5/24 ,  H05K7/20

Abstract: A field-replaceable unit (FRU) identification circuit includes a reference voltage source, a reference resistor, a plurality of comparators, and a plurality of comparator input voltage sources. The reference voltage source provides a reference voltage. A first end of the reference resistor is electrically connected to the reference voltage source. Each comparator has two inputs and an output. A first input of each comparator is electrically connected to a second end of the reference resistor. The comparator input voltage sources each provide a comparator input voltage to the second input of one of the comparators. When an FRU is electrically connected to a circuit board where the FRU identification circuit is located, the outputs of the comparators are set to a distinct combination of logical values that uniquely identifies the FRU.

公开(公告)号：US20220408590A1

公开(公告)日：2022-12-22

申请号：US17349715

申请日：2021-06-16

Applicant: Quanta Computer Inc.

Inventor： Hsien-Yang CHENG ,  Ying-Che CHANG ,  Yi-An CHEN ,  Yu-Tang ZENG

IPC: H05K7/20 ,  G06F1/20

Abstract: A hardware-based fan controller for controlling fan modules in a computer system having multiple computer nodes is disclosed. Each of the computer nodes has a service processor. The fan controller includes a slave module that receives fan speed commands from each of the service processors. A fan speed generator is coupled to the slave module and a subset of the fan modules. The fan speed generator receives fan speed commands from the slave module and fan speed outputs from the subset of fan modules. The fan speed generator is configured to output a speed command to each of the fan modules in the subset.