Does the CPU fan fault alarm control be turned on?

It's best to leave it on, in case the CPU fan doesn't turn, it will burn out the CPU.

Press Del to enter the BIOS settings interface, enter the Power tab, and set the CPU Fan Speed to ignore.

The CPU Fan Error error is caused by the fact that the motherboard does not detect the fan speed during the POST.

In addition to the previous method, it can also be solved with the following methods:

1. Connect the power header of the CPU fan to the CPU fan interface, not to the CHA fan, which is a common mistake made by DIY novices.

2. It is possible that the fan speed is too low (the default setting is 600 rpm), resulting in an error detection, you can go to the BIOS and set the CPU fan speed low limit option to 200 rpm.

The CPU Fan Speed Low Limit option appears only when the CPU Q-Fan Control is set to [Enabled] or [Advance Mode] or [Auto].

Or simply turn off the error alarm function of the motherboard and wait for"f1"The error option can be turned off.

Look inside the BIOS. The motherboard is not the same, and the location of the settings is also different.

1: First, make sure that the fan cable is connected to the right interface (cpu-fan), and then determine whether the fan is running. If the fan is no longer rotating, it means that it is broken and needs to be replaced;

2: If the fan is running normally, but the fan error is displayed when the machine is turned on, it is recommended to plug in and unplug the fan again, and try to restore the motherboard to factory settings by removing the motherboard battery, during which the host needs to be powered off.

3: If the above method still does not work, it may be that the motherboard has a problem with the fan sensor, try to block this fan prompt, turn off the fan detection function in the BIOS, the options of different brands of motherboards may be different, and some brands of motherboards do not have this function, it is recommended to refer to the motherboard manual or the actual operation.

1.If the high temperature alarms, it is recommended to turn off the computer appropriately and let the computer rest and dissipate heat;

2.If the chassis is too dusty, it is recommended to disassemble the case and clean up the dust to prevent the CPU from being too hot due to the inability to dissipate heat.

3.Check whether the fan is damaged, and if it is damaged, replace it with a new fan in time;

4.If the silicone grease on the CPU has been completely baked, reapply the silicone grease to assist the CPU in heat dissipation;

5.If it is a desktop compatible machine and has heat dissipation defects, it is recommended to install a water cooling to prevent the CPU temperature from being too high.

Because the warning content is garbled, before the failure has just installed a software from the Internet, so it is suspected that the software has a virus, and then the installed software is deleted and used KV3000, Rising 2001 and other anti-virus software to check and kill operations, no virus was found. Shut down and restart, about 5 minutes later, the above phenomenon occurs again, and repeats it many times. In order to completely rule out the possibility of a virus, format the hard drive, reinstall Windows98, and when the installation is about to be completed, the above phenomenon reappears, making the installation unable to complete normally.

Troubleshooting: After careful consideration, it doesn't seem like the above fault is caused by a virus, because every time the machine is rebooted, it works fine at the beginning, and only after a few minutes does it freeze, which seems to be related to some hardware of the machine, especially the temperature of the CPU. Turn off the machine, open the main chassis to check, when you touch the heat sink of the CPU with your hands, you feel very hot, this is obviously not normal, I suspect that there is a problem with the CPU chip or fan.

When I started the machine with the lid open, I found that the CPU fan was spinning very slowly, and it had lost its normal heat dissipation function. Turn off, remove the fan, and when you dial the fan blade by hand, you feel that the rotation of the fan blade is very inflexible, so Nayu uses a small screwdriver to insert it into the gap at the bottom of the fan blade, and slowly pry it upward, separating the entire fan blade from the fan base, and then turning over the fan blade, and seeing that there is a round cover-shaped firmware surrounded by several small arc magnets in the center of the fan blade, obviously this is the rotor of the fan motor, and the stator is a miniature winding fixed with the fan blade in the hole Li section, if the fan blade is combined with the fan base, The miniature winding can be plugged into the inside of the rotor. Further observation shows that there are some dry black sludge stuck to the top of the stator shaft and the bearing part connected to the rotor, which is wiped clean with gauze, and then a few drops of lubricating oil are dotted there, and then the fan blade and fan seat are recombined, and at this time, the fan blade can be easily rotated with a gentle flick of the finger.

Re-install the fan on the CPU heatsink, power on for 10 minutes, touch the CPU heatsink again, and feel that the temperature is only slightly warm, indicating that the fan's heat dissipation function has been restored. After the case is covered, turn it back on and install it again.

Windows98 system, everything is normal, continuous operation for a long time, the above failure has not appeared again.

Fault description: This fault is due to the poor lubrication of the CPU fan, which increases the rotation resistance of the fan blades, resulting in the slow rotation speed of the fan blades and the loss of heat dissipation function, so that the CPU enters the self-protection state due to high temperature after a few minutes of booting, and the phenomenon of crashing appears.

Press Del to enter the BIOS settings interface, enter the Power tab, and set the CPU Fan Speed to ignore.

The CPU Fan Error error is caused by the fact that the motherboard does not detect the fan speed during the POST.

In addition to the previous method, it can also be solved with the following methods:

1. Connect the power header of the CPU fan to the CPU fan interface, not to the CHA fan, which is a common mistake made by DIY novices.

2. It is possible that the fan speed is too low (the default setting is 600 rpm), resulting in an error detection, you can go to the BIOS and set the CPU fan speed low limit option to 200 rpm.

The CPU Fan Speed Low Limit option appears only when the CPU Q-Fan Control is set to [Enabled] or [Advance Mode] or [Auto].

Or simply turn off the error alarm function of the motherboard and wait for"f1"The error option can be turned off.