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This is normal.
When the temperature of the CPU reaches a certain value, the fan will accelerate until the maximum speed, and if the CPU usage is low and the temperature is low, the fan will also reduce the speed until it stops.
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1) This CPU fan of yours belongs to a brand fan and has a smart mode.
2) When the CPU temperature is low, the fan runs at low speed. When the CPU temperature is high, the fan will run at high speed (changes with the temperature) Its function is to save power and reduce noise.
3) The Lenovo computer I use, the CPU fan is the same as yours, and it has a smart mode.
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Your CPU is a Pentium's first-generation dual-core CPU which doesn't work very well in terms of heat dissipation.
Coupled with the motherboard's smart fan speed function, this is the cause of your above problems.
The solution is very simple: buy a fan with high speed and replace it!
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This is the smart mode, the CPU fan speed changes with the temperature, and the high speed is high when the temperature is high.
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Categories: Computer, Networking, >> Hardware.
Problem description: BenQ T600 brand computer, when the computer is booted, the CPU fan rotates, when entering the Windows progress bar, the fan stops, after entering the system for a few minutes, the fan begins to rotate normally, and occasionally stops rotating during operation.
In addition, the computer has undergone a later upgrade, adding a *** optical drive, the line connection is the original CD-ROM IDE cable connected to ***, and the power cord is also connected to *** after CDROM. The chassis is a small chassis. Now the optical drive is not recognized, and the optical drive is not displayed in the system-device manager, but the CD-ROM optical drive can be used normally.
Analysis: Fan is normal!
Some motherboards have the function of automatically controlling the fan speed, and it will only be turned on when the CPU is too hot, as long as the temperature is normal, there is absolutely no need to worry!
Question:
A new system or the optical drive to a different system to try it, if it is good, the optical drive is normal, but the CD-ROM driver is used!
Second, it means that the optical drive is faulty, and the laser component is divided into two bands, *** and cd, and *** can't use the part that explains *** There is a problem!
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