In this configuration, we used the Intel Z68 motherboard for the first time, it has the solid-state hard disk caching technology, can use the solid-state hard disk as the high speed large capacity cache, effectively enhances the mechanical hard disk speed. It will also use the I5 23,004 nuclear processors that are available in other small cities.
Accessories Name Accessories model Price (yuan)
C P U Intel Core i5 2300 (Loose) 1080
Radiator Kyushu Winds Ice mini flagship version 59
Motherboar
cancellation of the mechanical parts, SSD operation is absolute 0 noise, the use of solid-state hard drive room noise will be much smaller than the traditional computer room. And as a result of all the use of mechanical failure of the electronic components, and greatly reduced calorific value, when installed in the 7x24-hour operation of the server, solid-state hard disk reliability is not a mechanical hard disk can be compared, and even the power consumption will be greatly reduced. It is beca
circuit can repair MCU bad or data loss some models can be rewritten software data to solve, but still a lot of monitors can't write (software can't find), how to do? In this case, a substitute board or a general-purpose board is generally available.
Four, the built-in power supply is bad, mainly is not the output voltage or the output voltage cannot carry the load. The power supply bad better repair, generally first check the output section has no voltage output. If there is, the AC circuit i
circuit can repair MCU bad or data loss some models can be rewritten software data to solve, but still a lot of monitors can't write (software can't find), how to do? In this case, a substitute board or a general-purpose board is generally available.
Four, the built-in power supply is bad, mainly is not the output voltage or the output voltage cannot carry the load. The power supply bad better repair, generally first check the output section has no voltage output. If there is, the AC ci
, model SSDNow V100 128G, nominal read/write performance of 250/220 MB/s, as shown in Figure 3:
4, The wire to the SSD tail corresponding interface, basically very difficult to make a mistake, because the interface is dedicated, the mistake is not plugged in, as shown in Figure 4:
5, the power supply and data cable connected to the corresponding SSD interface position, the installation is basically completed, as shown in Figu
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1. Monitor machine without voltage
(1) Power failure: This is a very simple fault, the general LCD display extension inside the power supply and external power supply two, outside the common some. Regardless of that power supply, its structure is much simpler than the CRT monitor's power supply, and is usually vulnerable to a number of small components, such as the safety pipe, Rectifier bridge. 300V filter capacitor, power switch, power management I
Monitor power failure with no display
This is a very simple fault, the general LCD display extension inside the power supply and external power supply two, outside the common some. Regardless of that power, its structure is more simple than the CRT display power, easy to damage the general is a number of small components, such as insurance pipe, Rectifier bridge, 300V filter capacitor, power switch tube, power management IC, rectifier output diode, f
the past rural voltage instability, low voltage problems, and in the city these problems are usually not exist, So these factors are no longer important. As for other electrical appliances will cause interference is even more impossible, after all, color display is not a mutual inductance voltage-stabilized power supply, and other appliances even if the interference will not be screen flashing!
Failure reason and countermeasure:
The real fault causes of the first two kinds of fault phenomena
usually not exist, So these factors are no longer important. As for other electrical appliances will cause interference is even more impossible, after all, color display is not the use of mutual-inductance voltage regulator power supply, and other electrical appliances even if the interference will not be the screen flashing!
Causes and Countermeasures of faults:
The cause of the real failure of the first two kinds of faults is usually caused by the reduction of the capacitance capacity of th
computer card is not yet supported hot plug.Prevent static electricityComputer internal integrated chip is very sensitive to static electricity (CMOS chip can withstand electrostatic impulse voltage for 200v,dram, EPROM chip for 300v,ttl chip for 1000V), a little attention may cause integrated chip permanent damage, so in the plug all kinds of cards before, Be sure to put the electrostatic discharge on the hand, otherwise it is very possible to penet
the 100v~240v power supply voltage under normal work. Of course, if the voltage is too low or the voltage fluctuation is too large, it is another way to recognize, however, in the past two years, the national implementation of rural power grid reform has already begun to take effect, has fundamentally solved the past rural voltage instability, low voltage problems, and in the city these problems are usually not exist, So these factors are no longer important. As for other electrical appliances
2. Builder mode Crab today to learn the builder model, yesterday's adapter remember is very clear. For the builder model, the crab understands that you have 10 iphone phones to charge, assuming the charger is rated at 220v, but the external voltage is not stable, may be 220v, or 240v, or 300v, what to do, the feasible way is to buy a household transformer, The charger is connected to the transformer, do not need to directly connected to the external n
A search on Google found an ATX switching power supply consisting of TL494 and LM339
At first glance, more than 3842 of the switching power supply to be more complex in fact, as long as the basic circuit has a certain understanding and a certain imagination to understand this circuit is still very easy
First introduce the main chip of this circuit----TL494
This is his internal block diagram we can see 8 feet and 11 feet is the pulse output foot 13 feet is the power of the boot foot know t
key system, on-board auxiliary system, automotive entertainment system, automotive remote communication system, automotive equipment line and on-board bus system, etc, these systems constitute an automotive electronic system.
Composition of automotive power supply:
The power supply system of fuel vehicles is mainly composed of battery and generator. The power supply system of dual-mode vehicles and pure electric tram is mainly composed of power battery, lead-acid battery and DC-DC voltage
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voltage, when the motherboard str standby, this unit circuit is responsible for the motherboard memory power to maintain the information in memory is not lost. Second, to ATX power supply internal pulse width modulation chip main work IC TL494 12 feet and push transformer primary winding to provide DC working voltage +22v. As long as the ATX switching power supply to the mains, whether or not to start the computer, there is +5VSB standby start-up voltage output. The auxiliary power supply circu
exist, So these factors are no longer important. As for other electrical appliances will cause interference is even more impossible, after all, color display is not a mutual inductance voltage-stabilized power supply, and other appliances even if the interference will not be screen flashing!
Failure reason and countermeasure:
The real fault causes of the first two kinds of fault phenomena are usually caused by the virtual welding of some components of the line circuit or the decrease of the c
can be in the 100v~240v power supply voltage under normal work. Of course, if the voltage is too low or the voltage fluctuation is too large, it is another way to recognize, however, in the past two years, the national implementation of rural power grid reform has already begun to take effect, has fundamentally solved the past rural voltage instability, low voltage problems, and in the city these problems are usually not exist, So these factors are no longer important. As for other electrical a
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