Abstract: A power supply device including a working power supply module with a plurality of power supply units; a plurality of monitoring units outputting a power failure signal when the corresponding power supply unit is in a power failure; a plurality of latching units respectively corresponding to the plurality of monitoring units one to one, receiving the power failure signal and a disabling signal, and outputting a latching signal when the power failure signal is received but the disabling signal is not received; and a positioning module used for receiving the latching signal and outputting a disabling signal when the positioning module receives a first latching signal output by one latching unit to disable other latching units, so as to enable the positioning module to position the latching unit which firstly outputs the latching signal to position the corresponding power supply unit which is firstly in a power failure.

Abstract: The invention provides an electronic device. By reasonably and tidily arranging modules such as a mainboard, a fan module, a power supply module and a board card module in a case, more modules can be arranged in a limited space of the case, the utilization rate is high and the cost is low; the fan module, the power supply module and the board card module are independently designed and all modules cooperatively work with one another; each module is a clamping structure and can be disassembled and assembled with bare hands, and the operation and maintenance efficiency is improved; and signal transmission between all modules is completed by golden fingers and thereby the internal portion of the case is clean and tidy.

Abstract: The present invention provides a server system and a limiting mechanism used thereby. Through mutual cooperation between the limiting mechanism which sets on a server rack and sliding grooves and limiting holes which are formed in outer side walls of a server case, when internal components of the server case are drawn out, a rear end of the server case can be effectively prevented from turning up or falling down, the problem of case fixation when the server rack uses a tray type sliding rail is solved, the structure is simple and reliable and the practicability is very high.

Abstract: The present invention provides a server system and a limiting mechanism used thereby. Through mutual cooperation between the limiting mechanism which sets on a server rack and sliding grooves and limiting holes which are formed in outer side walls of a server case, when internal components of the server case are drawn out, a rear end of the server case can be effectively prevented from turning up or falling down, the problem of case fixation when the server rack uses a tray type sliding rail is solved, the structure is simple and reliable and the practicability is very high.

Abstract: A drive control device, which includes a control module generating an optical driver power supply control signal; a detection module detecting a working state of an optical driver according to the optical driver power supply control signal or receiving an external input signal and generating a switch control signal according to a detection result or the external input signal; and an execution module electrically connected with the detection module and powering on or off power supply on the optical driver according to the switch control signal. The powering-on and powering-off of the optical driver are flexibly controlled, the situation of increase of additional power consumption of a device for a reason that the optical driver is in a standby state for a long time is avoided.

Abstract: A system state detection method, including: reading a current fault event related to a system state through a complex programmable logic device; judging whether the current fault event has already pre-stored in a desktop server or not through the complex programmable logic device; if so, executing a next step; if not, dividing the current fault event into a corresponding fault priority; and searching a fault priority corresponding to the current fault event through the complex programmable logic device, and lighting up an LED health lamp matched with the corresponding fault priority in a preset alarming manner according to the corresponding fault priority.

Abstract: The invention provides an electronic device. By reasonably and tidily arranging modules such as a mainboard, a fan module, a power supply module and a board card module in a case, more modules can be arranged in a limited space of the case, the utilization rate is high and the cost is low; the fan module, the power supply module and the board card module are independently designed and all modules cooperatively work with one another; each module is a clamping structure and can be disassembled and assembled with bare hands, and the operation and maintenance efficiency is improved; and signal transmission between all modules is completed by golden fingers and thereby the internal portion of the case is clean and tidy.

Abstract: A power supply device including a working power supply module with a plurality of power supply units; a plurality of monitoring units outputting a power failure signal when the corresponding power supply unit is in a power failure; a plurality of latching units respectively corresponding to the plurality of monitoring units one to one, receiving the power failure signal and a disabling signal, and outputting a latching signal when the power failure signal is received but the disabling signal is not received; and a positioning module used for receiving the latching signal and outputting a disabling signal when the positioning module receives a first latching signal output by one latching unit to disable other latching units, so as to enable the positioning module to position the latching unit which firstly outputs the latching signal to position the corresponding power supply unit which is firstly in a power failure.