Abstract: A computer-implemented method is provided for cooling hard disk drives (HDDs). The method may include determining a threshold fan speed for one or more fans that provide cooling for HDDs based upon a target HDD vibration performance. The method may also include controlling the one or more fans, by a controller, to alternately run at a first fan speed for a first period and at the threshold fan speed for a second period, when the one or more fans reach the threshold fan speed. The first fan speed is higher than the threshold fan speed.

Abstract: A fan guard includes a guard housing and a plurality of guard blades. The guard housing includes an outer tunnel wall forming a housing aperture to permit air to flow across the guard housing. The guard blades are disposed in the housing aperture. Each of the guard blades extend from the guard housing towards a center of the housing aperture. Each guard blade at least partially overlaps an adjacent guard blade. Each of the guard blades are droplet shaped.

Abstract: An apparatus and method are provided to facilitate the cooling of different configurations of cards within a chassis, e.g., a card riser cage. Embodiments disclose telescoping air dams that may be reconfigured to adapt to different combinations of half height and full height cards to fill vacancies in the chassis, hindering the flow of air through those vacancies, thereby redirecting the flow elsewhere and improving the cooling of the cards. By being reconfigurable, embodiments improve the ease that card cages may be reconfigured by reducing the number of parts necessary for such reconfigurations.

Abstract: A rack mounted cooling system operable to cool a computing system is provided. The rack mounted cooling system includes a pump unit operable to pump fluid and a plurality of heat exchangers. The heat exchangers include an input heat exchanger and an outlet heat exchanger. The input heat exchanger is operable to receive the fluid from the pump unit, lower a temperature of the fluid, and provide the fluid to a liquid cooled computing unit. The outlet heat exchanger is operable to receive the fluid from the liquid cooled computing unit, lower the temperature of the fluid, and provide the fluid to the pump unit. The heat exchangers are operable to be coupled to a rack of the computing system such that the rack with the plurality of heat exchangers fits within a rack keep in area.

Abstract: A cam system for a liquid cooled computing unit with blind-mate quick disconnects include a cam and a cam guide. The cam guide is operable to engage with the cam. The cam guide includes a bearing guide and a fixed guide. The cam engages first with the bearing guide then engages with the fixed guide to a latched configuration. When the cam engages with the cam guide and transitions to the latched configuration, the cam translates a chassis of the computing unit along a longitudinal axis to blind-mate the quick disconnects.

Abstract: An apparatus and method provide a cable chain system with automatic latching and unlatching that facilitates the hot-swapping of individual drives, and also the hot-swapping of an entire JBOD sled. Between an installed position and a first extended position, the apparatus maintains the connection of the sled to the shared rack infrastructure, which facilitates the hot-swapping of individual drives in the first extended position. With additional movement to a second extended position, the apparatus releases the sled, allowing the sled to be disconnected from the shared rack infrastructure.

Abstract: A system is provided for collection, detection and containment of leaked liquid. The system may include a spout connected to a liquid cooling manifold for channeling liquid. The system may also include a collection tray positioned under the spout and configured to contain the liquid from the spout. The system may further include a leak detection rope having a first end coupled to the liquid cooling manifold, a middle portion extending along the spout, and a second end placed inside the collection tray for detection of liquid.

Abstract: A system and method are provided for an interlock that limits the number of electronic devices that may extend from a rack system. In the system, sensors attached to the rack detect the extension of a rail from the rack. The sensors provide a controller with data from which the controller determines a number of rails that are extended from the rack. If the number of extended rails is determined by the controller to exceed a threshold number, the controller actuates a latch system that closes to lock the remaining devices within the rack.

Abstract: An apparatus and system are provided for detecting coolant leaks from connections to rack-mounted devices and managing the leak by directing liquid away from sensitive electrical components. On each device, a pan is connected to liquid couplings found on the rear of the device. A sensor tape is attached to a vertical section of the rack, e.g., on the coolant supply lines or housing. The pan collects leakage from the couplings and directs the leakage to the sensor tape, which is connected to a control unit. Upon liquid contacting the sensor tape, the control unit signals the detection of a leak. To prevent false positives due to incidental leakage, e.g., mere drops leaked upon connection to the coolant system, the pan may include a texture in the pan surface that retains a small amount of fluid.

Abstract: A manifold system includes a supply manifold and a return manifold. The supply manifold delivers fluid to cold plates to cool processing units of a computing system. The return manifold receives the fluid from the cold plates. The supply manifold has supply fluid ports equidistantly spaced about the side surface of the supply manifold, and the return manifold has return fluid ports equidistantly spaced about the side surface of the return manifold.

Abstract: A fan guard includes a guard housing and a plurality of guard blades. The guard housing includes an outer tunnel wall forming a housing aperture to permit air to flow across the guard housing. The guard blades are disposed in the housing aperture. Each of the guard blades extend from the guard housing towards a center of the housing aperture. Each guard blade at least partially overlaps an adjacent guard blade. Each of the guard blades are droplet shaped.

Abstract: A boiler plate is provided. The boiler plate includes a heat spreader layer operable to transfer heat from a computing component across the heat spreader layer. The heat spreader layer extends along a plane. At least one heat pipe extends from the heat spreader layer in a direction substantially perpendicular to the plane away from the computing component. The at least one heat pipe is operable to transfer the heat away from the heat spreader layer to reduce a temperature of the computing component.

Abstract: A device for constraining liquid cooling tubes may include connecting a first tube connector and a second tube connector with a stretchable strip of flexible material. The first tube connector is configured to fluidly seal to a first end of a liquid cooling tube, and the second tube connector is configured to fluidly seal to a second end of the liquid cooling tube. The device may also include connecting the first tube connector to a first manifold and connecting the second tube connector to a second manifold when a computing device in a rack is in operation. The device may also include disconnecting the first tube connector to the first manifold and the second tube connector to the second manifold. The first tube connector and the second tube connector are constrained by the stretchable strip of flexible material when the computing device is moved out of the rack.

Abstract: A crossbar is provided that is operable to be removably installed in a sled for a modular server and/or information handling system, for example a network equipment building system. The crossbar includes a frame, a keystone portion of the frame forming a keystone air duct, and a riser guide extending from the frame. The keystone portion is operable to direct air flow through the keystone air duct towards a heat sink and/or a CPU. The riser guide is operable to align a riser to be plugged into a motherboard installed in the sled. The frame is operable to be a structural component that is substantially coupled to the sled chassis.

Abstract: A lock device may include a slider assembly including a first slider, a second slider movably coupled to the first slider, and a base having a planar portion with a top rail and a bottom rail that hold the slider assembly and allows the relative movement of the first slider relative to the second slider along the top and bottom rails in the base. The second slider can move relative to the first slider to different positions including a latch lock position, a latch unlock position, and a latch impending lock position. The lock device may also include a latch assembly attached to a chassis. The latch assembly including a latch element is configured to move to a first, a second, and a third heights from the top rail of the base corresponding to the latch lock position, the latch unlock position, and the latch impending lock position of the slider assembly, respectively.

Abstract: An apparatus provides a latch with a rotary dial and a leaf spring with teeth that extend from a frame into an engaging position. Inward axial movement of the dial causes the dial to deform the leaf spring and the teeth to extend into the engaging position. In the engaging position, the dial supports the teeth and resists forces that might otherwise cause the teeth to unlatch. In the engaging position, a catch in a track on the dial engages a pin of the frame to maintain the engaging position. From the engaging position, a rotation of the dial unseats the catch and allows the dial to move axially outward and the teeth to recede into the frame.

Abstract: Systems and methods are described for reporting capacitance of a capacitor of a power backup circuit comprising a plurality of metal-oxide-semiconductor field-effect transistors (MOSFETs). The system may also include a bleeder resistor and a voltage detection circuit. When capacitance monitoring is active, a first MOSFET may be turned off, causing the capacitor to be discharged via the bleeder resistor. After predetermined time intervals, a first drain voltage and a second drain voltage of the first MOSFET may be determined using the voltage detection circuit. The drain voltage readings at the different times may be used to determine the capacitance of the capacitor, which may be used to generate and transmit a report on capacitor performance and status.

Abstract: A lock device may include a slider assembly including a first slider, a second slider movably coupled to the first slider, and a base having a planar portion with a top rail and a bottom rail that hold the slider assembly and allows the relative movement of the first slider relative to the second slider along the top and bottom rails in the base. The second slider can move relative to the first slider to different positions including a latch lock position, a latch unlock position, and a latch impending lock position. The lock device may also include a latch assembly attached to a chassis. The latch assembly including a latch element is configured to move to a first, a second, and a third heights from the top rail of the base corresponding to the latch lock position, the latch unlock position, and the latch impending lock position of the slider assembly, respectively.

Abstract: A method is provided for dynamically controlling fan speed of a computing system during boot and reboot. The method may include receiving an ambient temperature from a sensor by a controller. The method may also include controlling speed for one or more fans dynamically based upon the ambient temperature using a dynamic algorithm during boot and reboot of the computing system. The dynamic algorithm may include a function for the fan speed of the one or more fans based upon the ambient temperature.

Abstract: An apparatus and system are provided for detecting leaks in cooling tubing using sensor cabling. In the leak detection system, a leak detection cable is routed along the full length of the cooling tube. The leak detection cable and the cooling tubing are encased within a shrunken tube, which leaves such a small gap between the cooling tubing and the heat-shrunk tube that leakage is distributed within the gap about the outside of the cooling tubing by capillary action. The relative position of the detection cable above or below the cooling tubing is then irrelevant, since the capillary action may overcome the effect of gravity and distribute leakage from the bottom of the tubing to a detection cable at the top of the tubing.