System board with staggered power connectors and power adapters facilitating compatability with different chassis

1 . A system board for an information processing device, comprising:

a printed circuit board (PCB) having a stepped rear edge comprising at least first step and a second step, the first step being farther rearward than the second step;

electronic components, including a processor socket, formed in and/or mounted to the PCB;

a first power connector mounted to the PCB at the first step; and

a second power connector mounted to the PCB at the second step such that the first power connector is a predetermined distance farther rearward than the second power connector.

2 . The system board of claim 1 , wherein the first power connector and the second power connector each comprise an M-CRPS slot connector.

3 . The system board of claim 1 ,

wherein the system board is configured to be compatible with a first system having a first length and a second system having a second length, the first and second system each comprising PSUs having a same form factor.

4 . The system board of claim 3 ,

wherein the first power connector is positioned such that, on condition of the system board being installed in the first system, a distance from a first rear panel of the first system to the first power connector is equal to a length of one of the PSUs less an insertion depth of a PSU edge connector of the PSU in the first power connector; and

wherein the second power connector is positioned such that, on condition of the system board being installed in the second system, a distance from a second rear panel of the second system to the second power connector is equal to the length of one of the PSUs less the insertion depth of the PSU edge connector.

5 . The system board of claim 1 , wherein the predetermined distance is 60 mm.

6 . An information processing system comprising:

the system board of claim 1 ;

a chassis supporting the system board;

a first PSU and a second PSU, each comprising a PSU edge connector; and

an adapter board comprising an edge connector and a slot connector,

wherein the PSU edge connector of the first PSU is mated directly with the first power connector of the system board, the edge connector of the adapter board is mated directly with the second power connector of the system board, and the PSU edge connector of the second PSU is mated directly with the slot connector of the adapter board.

7 . The system of claim 6 ,

wherein the chassis comprises a rear panel and a power supply unit (PSU) cage at the rear panel, wherein each of the PSUs is installed in the PSU cage,

wherein the first power connector is aligned with a first bay of the PSU cage such that the PSU edge connector of the first PSU blind mates with the first power connector during insertion of the first PSU into the PSU cage, and

wherein the second power connector is aligned with a second bay of the PSU cage.

8 . The system of claim 7 ,

wherein the adapter is affixed to the chassis and aligned with the second bay of the PSU cage such that the PSU edge connector of the second PSU blind mates with the slot connector of the adapter during insertion of the second PSU into the PSU cage.

9 . The system of claim 6 ,

wherein the chassis comprises a front panel and a rear panel, and a length of the chassis from the front panel to the rear panel is 400 mm.

10 . The system of claim 6 ,

wherein the first power connector, the second power connector, and the slot connector of the adapter board each comprise M-CRPS slot connectors, and

wherein the edge connector of the adapter board and the PSU edge connectors of the first and second PSUs each comprise M-CRPS edge connectors.

11 . An information processing system comprising:

a first system board comprising an instance of the system board of claim 1 ;

a second system board comprising another instance of the system board of claim 1 ;

a chassis supporting the first and second system boards;

a first PSU and a second PSU, each comprising a PSU edge connector; and

an adapter bridge comprising a first edge connector and a second edge connector,

wherein the PSU edge connector of the first PSU is mated directly with the second power connector of the first system board, wherein the PSU edge connector of the second PSU is mated directly with the second power connector of the second system board, wherein the first edge connector of the adapter bridge is mated directly with the first power connector of the first system board, and the second edge connector of the adapter bridge is mated directly with the first power connector of the second system board.

12 . The system of claim 11 ,

wherein the first system board is vertically stacked above the second system board,

wherein the first power connector of the first system board is vertically aligned with the first power connector of the second system board, and

wherein the second power connector of the first system board is vertically aligned with the second power connector of the second system board.

13 . The system of claim 12 ,

wherein the chassis comprises a rear panel and a power supply unit (PSU) cage at the rear panel, wherein each of the first and second PSUs is installed in the PSU cage,

wherein the first power connectors of the first and second system boards are aligned, respectively, with the bays of the PSU cage such that the PSU edge connectors of the first and second PSUs blind mate with the first power connectors of the first and second system boards, respectively, during insertion of the first and second PSUs into the PSU cage.

14 . The system of claim 11 ,

wherein the adapter bridge comprises flexible wires connecting the first edge connector to the second edge connector.

15 . The system of claim 11 ,

wherein the chassis comprises a front panel and a rear panel, and a length of the chassis from the front panel to the rear panel is 350 mm.

16 . The system of claim 11 ,

wherein the first power connector and the second power connector each comprise M-CRPS slot connectors, and

wherein the first edge connector and second edge connector of the adapter bridge and the PSU edge connectors of the first and second PSUs each comprise M-CRPS edge connectors.

17 . An information processing system comprising:

the system board of claim 1 ;

a chassis supporting the system board;

a first PSU and a second PSU, each comprising a PSU edge connector; and

an adapter bridge comprising an edge connector and a slot connector,

wherein the PSU edge connector of the first PSU is mated directly with the second power connector of the system board, wherein the PSU edge connector of the second PSU is mated directly with the slot connector of the adapter bridge, wherein the edge connector of the adapter bridge is mated directly with the first power connector of the system board, and the PSU edge connector of the second PSU is mated directly with the slot connector of the adapter bridge.

18 . The system of claim 17 ,

wherein the chassis comprises a rear panel and a power supply unit (PSU) cage at the rear panel, wherein each of the first and second PSUs is installed in the PSU cage,

wherein the second power connector of the system board is aligned with a first bay of the PSU cage such that the PSU edge connector of the first PSU blind mates with the second power connector during insertion of the first PSU into the first bay, and

wherein the slot connector of the adapter bridge is affixed to the chassis in alignment with a second bay of the PSU cage such that the PSU edge connector of the second PSU blind mates with the slot connector during insertion of the second PSU into the second bay.

19 . The system of claim 17 ,

wherein the adapter bridge comprises flexible wires connecting the edge connector to the slot connector.

20 . The system of claim 17 ,

wherein the first power connector, the second power connector, and the slot connector each comprise M-CRPS slot connectors, and

wherein first edge connector of the adapter bridge and the PSU edge connectors of the first and second PSUs each comprise M-CRPS edge connectors.