Expansion fan device with adjustable fan

1. A fan device comprising:

an expansion card to mechanically and communicatively connect to a computing system;

a fan;

a mounting mechanism to mount the fan within an opening in the expansion card, wherein the mounting mechanism comprises a pair of rails connected to the expansion card and a pair of pins connected to opposite sides of the fan, wherein the rails comprise rail openings extending linearly along the rails and the pins are connected to the rails, respectively, in the rail openings such that the pins can translate and rotate relative to the rails and permit translation and rotation of the fan relative to the expansion card, wherein the rails comprises two mounting locations arranged on opposite sides of the rail openings; and

a removable airflow directing mechanism configured to be removably mounted to the rails at either of the two mounting locations such that

with the fan in a first position on the rails the removable airflow directing mechanism is mountable to a first of the mounting positions on a first side of the fan blocking a first portion of the opening in the expansion card; and

with the fan in a second position on the rails the removable airflow directing mechanism is mountable to a second of the mounting positions on a second side of the fan blocking a second portion of the opening in the expansion card.

2. The fan device of claim 1 , further comprising a controller mounted to the expansion card, the controller to:

communicatively couple to the fan; and

communicatively couple to the computing system through the expansion card.

3. The fan device of claim 1 , wherein the airflow directing mechanism abuts the fan when the airflow directing mechanism is mounted to either of the mounting locations, the first portion of the opening extends from a first internal edge of the expansion card to a first edge of the fan, the second portion of the opening extends from a second internal edge of the expansion card to a second edge of the fan, and the first and second internal edges of the expansion card form parts of a rim of the opening in the expansion card arranged opposite from one another along a direction of translation of the fan.

4. The fan device of claim 1 , wherein the mounting mechanism permits the fan to rotate at least 180 degrees relative to a surface of the expansion card through an orientation orthogonal to the surface of the expansion card.

5. The fan device of claim 1 , wherein opposing sides of the fan are mounted parallel to opposing sides of the expansion card.

6. The fan device of claim 1 , wherein the expansion card comprises an edge connector to mechanically and communicatively connect to the computing system.

7. The fan device of claim 1 , wherein the expansion card has a standard form factor.

8. The fan device of claim 7 , wherein the expansion card has a standard Peripheral Component Interconnect Express form factor.

9. The fan device of claim 1 , further comprising a memory device mounted to the expansion card to store an identifier for the fan device.

10. A computing system comprising:

a heat-generating component;

a set of connectors; and

a fan device comprising:

an expansion card comprising a pair of opposing surfaces and a plurality of lateral sides connecting the pair of opposing surfaces, wherein the expansion card connects to a first connector in the set of connectors, such that the expansion card is positioned adjacent to the heat-generating component;

a fan comprising a pair of opposing surfaces and a plurality of lateral sides connecting the pair of opposing surfaces of the fan; and

a mounting mechanism that mounts the fan within an opening in the expansion card, in an operating position, such that the pair of opposing surfaces of the fan are positioned parallel to the pair of opposing surfaces of the expansion card wherein the mounting mechanism permits the fan to rotate, within the opening, at least 180 degrees relative to the expansion card, wherein the mounting mechanism comprises a pair of rails connected to the expansion card and a pair of pins connected to opposite lateral sides of the fan, wherein the rails comprise rail openings extending linearly along the rails and the pins are connected to the rails, respectively, in the rail openings such that the pins can translate and rotate relative to the rails and permit translation and rotation of the fan relative to the expansion card, wherein the rails comprises two mounting locations arranged on opposite sides of the rail openings; and

a removable airflow directing mechanism configured to be removably mounted to the rails at either of the two mounting locations such that

with the fan in a first position on the rails the removable airflow directing mechanism is mountable to a first of the mounting positions on a first side of the fan blocking a first portion of the opening in the expansion card; and

with the fan in a second position on the rails the removable airflow directing mechanism is mountable to a second of the mounting positions on a second side of the fan blocking a second portion of the opening in the expansion card.

11. The computing system of claim 10 , wherein the heat-generating component comprises a longitudinal surface that is positioned parallel and adjacent to a surface in the pair of opposing surfaces of the fan.

12. The computing system of claim 10 , wherein the expansion card further comprises an edge connector extending from a lateral side in the plurality of lateral sides of the expansion card, and wherein the edge connector mechanically and communicatively connects to the first connector.

13. The computing system of claim 10 , wherein the mounting mechanism permits the fan to translate linearly relative to the expansion card.

14. The computing system of claim 10 , wherein the fan device further comprises a memory device mounted to the expansion card to store an identifier for the fan device, and wherein the computing system further comprises a management controller to receive the identifier through the connection between the expansion card and the first connector.

15. The computing system of claim 10 , wherein the airflow directing mechanism abuts the fan when the airflow directing mechanism is mounted to either of the mounting locations, the first portion of the opening extends from a first internal edge of the expansion card to a first edge of the fan, the second portion of the opening extends from a second internal edge of the expansion card to a second edge of the fan, and the first and second internal edges of the expansion card form parts of a rim of the opening in the expansion card arranged opposite from one another along a direction of translation of the fan.

16. The computing system of claim 10 , wherein the expansion card is a standard Peripheral Component Interconnect Express (“PCI Express”) card, and the first connector is a standard PCI Express slot.