cpu fan power supply

What to do if the laptop motherboard is out of power: First step. First, pin 14 and 15 short, and if the fan on the ATX power supply rotates, skip this step and look at the next one. If the fan on the ATX power

light, also can't hear the sound of cooling fan. At this time, first of all to see if there is no connection, there is no power cord loose, if not the basic can be identified as a partial failure of the power supply. Check: Power cord and socket whether there is electricit

of heat energy along the object from one end of the high temperature to one end of the low temperature, and its heat conduction capability is stable. Convection conduction is a process in which the temperature tends to be even when the liquid or gas moves through rotary motion. Since the convection conduction involves the dynamic process, the cooling rate is relatively high. The component is installed on the metal radiator. By extrusion the hot surface, the high and low unequal energy bodies ca

There are two ways to reduce fan noise:1, reduce the speed of the fan. Can be adjusted in BIOS or graphics console (requires motherboard support). You can also use the fan governor. However, this method will reduce the thermal performance to some extent.2, the use of good quality mute fan. General prices are relatively

the area are omitted. At present, the internal space of the power supply using a 12-centimeter fan is not able to plug in the integrated EMI filter, so most of the practices of both sides of the photo are used. ■ X capacitor (CX, also known as cross-wiring filter capacitor) This is a capacitor used in the EMI filter circuit to interwork between the wire (l) and

supply is to convert a 220 v ac to a DC power available for the PC. Generally, the power supply converts an AC to 12 V, 5 V, or 3.3 v dc. 12 volt DC is used to drive a device with a motor, such as a hard drive and a CD-ROM drive. 5 V and 3.3 V output are used to supply diff

Remove the installation of memory, graphics, etc. are not difficult, but remove the CPU on the motherboard is not easy, a little attention may damage the CPU and motherboard slots, each CPU and CPU fan installation is not necessarily the same, but the same. The following det

addition, the power-on sequence must be considered. If only the DSP or FPGA kernel is used for power supply and the peripheral I/O is not used for power-on, the device will not be damaged, and only the input/output will be unavailable. Otherwise, if the peripheral I/O is powered and the

STM32 power management, stm32 Inverter Power Supply (1) 3-minute Model ① Sleep mode ② stop mode ③ standby mode 1. Sleep mode: Cortex-M3 kernel (can be understood as the CPU) stop working, CPU power 1.8V, peripherals in the operati

Offline Live detection Under normal circumstances, in standby state of ps-on and Pw-ok two power signals, one is high, the other is low level, plug 9 feet only output +5VSB voltage, as long as the meter to measure the voltage to the parameter value, you can determine the result of the problem. Artificial Wake power supply detection Use a thin wire (such as a p

Generally speaking, when the computer is working properly, the sound is very small, in addition to the hard disk read and write data emitted by the sound, mainly the cooling fan sound, especially the switching power supply fan emits the loudest. Some switching power

will stop when the speed is below a certain percent of X, so remember to pay attention to the fan speed, so as not to cause loss. For a general fan, the speed of the fan is the slowest when it is 0% rpm. Typically fan1/speed01 for CPU fan sockets (Cpu_fan), fan2/speed02 fo

good, the cooling fan is required to provide sufficient air volume to ensure that cool air can be replenished continuously. The latest production of good fans are the use of multiple blades, sickle shape, which can effectively increase the air volume, reduce noise, so it is worthy of priority consideration. 3, other skills-heatsink base, fan power

The current production of computer motherboards are using switching power supply mode. Switching power supply mode can be divided into: single-phase power supply, two-phase power

, after using for some time to find the CPU fan sometimes turn not turn, But the body temperature is always high. Fault handling: The laptop fan is designed with temperature control, which rotates when the CPU temperature is above 70 ℃. The high temperature of the fuselage does not mean that the internal temperature

jinhetian Jinba ATX-S388 power saving Master, professional design for Internet cafes, not only powerful power, but also wide voltage design, effective to prevent computer damage caused by voltage problems. The standard power-saving Master also features a patented technology that adds an energy-saving power

switches. Vswitch troubleshooting: Power Supply Fault Fault description: After the switch is enabled, the switch is not operating normally, and the POWER indicator on the panel is not on, and the fan does not rotate. Fault cause: the fault is usually caused by unstable external po