摘要:
Monitoring of boot progress for a multiprocessor information handling system is performed with a test module running on a CPLD. RAM integrated in the CPLD stores boot progress information passed through an I/O buffer located between the processors and the firmware that boots the processors. Downloading of the boot progress from the RAM to an external device, such as through a serial port, provides a processor trace that is analysis and debugging of the firmware by recording processor operations through the boot progress.
摘要:
A thermal dissipation apparatus includes a thermal transfer device including a heat pipe member. A temperature sensitive material is coupled to the heat pipe member and is operable to provide a visual indication of the heat transfer in the heat pipe member. The thermal dissipation apparatus may be coupled to a heat producing component in order to dissipate heat from the component, and the temperature sensitive material will allow the function of the heat pipe member to be visually determined.
摘要:
A system and method for using a shared bus to control a keyboard, video, and mouse (KVM) output is disclosed. The system may include a mid-plane having a video bus. At least one server module, including a video output module, may be placed in communications with the video bus. The video output module may transmit a video signal over the bus and receives a control signal over the bus. A management module may also be placed in communications with the video bus. The management module may receive the video signal from the server module via the bus and provide a control signal through the video bus to each server module. The control signal may activate or deactivate the video output module on each server module.
摘要:
A system, apparatus and method for controlled impedance at transitional via sites using barrel inductance minimization are provided. In one embodiment, one or more sidewalls of a via barrel are preferably processed such that conductive material disposed thereon is selectively removed thereby forming an inner-via trace connecting one or more conductive traces and/or pads on a first substrate layer to one or more conductive traces and/or pads on a second substrate layer. Removal of conductive material from a sidewall of the via barrel is done in a manner such that an inner-via trace traveling from a first surface to a second surface of one or more substrate layers possesses at least one electrical characteristic substantially approximating a corresponding electrical characteristic of those structures to which the inner-via trace is connected.
摘要:
Monitoring of boot progress for a multiprocessor information handling system is performed with a test module running on a CPLD. RAM integrated in the CPLD stores boot progress information passed through an I/O buffer located between the processors and the firmware that boots the processors. Downloading of the boot progress from the RAM to an external device, such as through a serial port, provides a processor trace that is analysis and debugging of the firmware by recording processor operations through the boot progress.
摘要:
A method and circuitry for reconfiguring the links of a PCI Express bus after a user hot swaps a PCI device. A computer system has been initially configured with PCI Express bus links to various endpoints, using the scaling features of the PCI Express standard. If a hot swap occurs, an SMI routine is used to signal a reconfiguration circuit to reroute unused links (or unused portions of links) to one or more other PCI devices.
摘要:
Remote access to a platform management system, for example via an intelligent platform management interface (IPMI), is maintained despite a failure affecting a local area network (LAN) controller. Failover to a second, operational LAN controller can be achieved by monitoring the status of the LAN controllers, and using a selector to couple a different LAN controller to a platform controller if the LAN controller currently coupled to the platform controller fails.
摘要:
Remote access to a platform management system, for example via an intelligent platform management interface (IPMI), is maintained despite a failure affecting a local area network (LAN) controller. Failover to a second, operational LAN controller can be achieved by monitoring the status of the LAN controllers, and using a selector to couple a different LAN controller to a platform controller if the LAN controller currently coupled to the platform controller fails.
摘要:
A system, apparatus and method for controlled impedance at transitional via sites using barrel inductance minimization are provided. In one embodiment, one or more sidewalls of a via barrel are preferably processed such that conductive material disposed thereon is selectively removed thereby forming an inner-via trace connecting one or more conductive traces and/or pads on a first substrate layer to one or more conductive traces and/or pads on a second substrate layer. Removal of conductive material from a sidewall of the via barrel is done in a manner such that an inner-via trace traveling from a first surface to a second surface of one or more substrate layers possesses at least one electrical characteristic substantially approximating a corresponding electrical characteristic of those structures to which the inner-via trace is connected.
摘要:
A system, method and apparatus for constructing capped resistive vias are disclosed. In a preferred embodiment, a bare, electronic component substrate or printed circuit board via is preferably surrounded at each opening by a conductive pad. Defined by openings at a first and second surface of the substrate and a conductive material free wall defining the via is a void filled with one or more resistive inks and/or fills. A conductive cap is preferably coupled to the conductive pads such that an opening therein and the resistive fill exposed at the surface of the substrate is substantially covered. The presence of the conductive cap enables one or more electronic component conductors to be coupled directly to the capped resistive via.