Motherboard with peripheral component interconnect express slots
AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.
InventorsWU ZHOU, MENG-LIANG YANG
Life of this patent
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Abstract
A motherboard (100) includes an X16-lane PCIE slot (1), an X8-lane PCIE slot (2), a controller (3), and a multiplexer (7). A feedback pin of the X16-lane PCIE slot (1) outputs a feedback signal when an X16-lane PCIE card is inserted into the X16-lane PCIE slot (1). When the multiplexer (7) does not receive the feedback signal, two X8-lane PCIE cards can be inserted into the X16-lane PCIE slot (1) and the X8-lane PCIE slot (2), respectively, to communicate with the controller (3). When an X16-lane PCIE card is inserted into the X16-lane PCIE slot (1), the multiplexer (7) receives the feedback signal, and the X16-lane PCIE card can communicate with the controller (3) through the X16-lane PCIE slot (1).
Claims1
A motherboard (100), comprising:
- a controller (3);
- an X16-lane Peripheral Component Interconnect Express (PCIE) slot (1) coupled to the controller (3) by a first eight pairs of channels (101);
- a multiplexer (7) coupled to the controller (3) by second a eight pairs of channels (102) and coupled to the X16-lane PCIE slot (1) by a third eight pairs of channels (103);
- and
- a X8-lane PCIE slot (2) coupled to the multiplexer (7) by a fourth eight pairs of channels (104);
- wherein the multiplexer (7) is also coupled to a feedback pin of the X16-lane PCIE slot (1);
- wherein when the multiplexer (7) has not received a feedback signal from the feedback pin of the X16-lane PCIE slot (1), the multiplexer (7) connects the second eight pairs of channels (102) to the fourth eight pairs of channels (104);
- wherein when the multiplexer (7) receives a feedback signal from the feedback pin of the X16-lane PCIE slot (1), the multiplexer (7) connects the second eight pairs of channels (102) to the third eight pairs of channels (103);
- and
- wherein the feedback pin of the X16-lane PCIE slot (7) outputs the feedback signal when an X16-lane PCIE card is inserted in the X16-lane PCIE slot (1).
Dependencies are inferred from the claim text.