“The cooling fan rotates three times, but the PC does not start up.” A solution to the problem of graphics board trouble and breakdown as determined by the rotation of the PC cooling fan.


I am using a GeForce GT 430 graphic board and watching the PC screen using 2 monitors.
Yesterday, I thought and tried “3 monitors”.

I inserted the HDMI cable into the graphic board, but the step on the back of the PC can not be plugged deeply in the way.
I tried it several times, I thought that it was probably connected and turned on the PC.

Press the power button

The fan turns, but it turns a little longer than usual

The fan stops and enters the stage of PC startup

But, it returns to the restart sequence

The fan turns, but it turns a little longer than usual

The fan stops and enters the stage of PC startup

But, it returns to the restart sequence

The fan turns, but it turns a little longer than usual

The fan stops and enters the stage of PC startup

But, it returns to the restart sequence

And PC does not start …

Well? Something is bad, …
I calmly pulled out the power cable and pressed the power button to discharge the internal charge.
After a while, I will restart the PC again, but it will not start with the same symptoms.

I searched WEB on the sub PC, but the solution method was not found immediately.
I decided to restore the next day.

This is on a desk with three monitors.
3 The monitor will be in this state.
I thought that 3 monitors were not good and decided to return to the original 2 monitors.

Today ‘s restoration work.
First of all, My PC does not start by pressing the power button, I decided to think about the cause.

I thought about graphic board breakage, monitor cable contact, power supply capacity, equipment compatibility etc.
The first check is a graphic board.
I exchanged for 8700 of nvidia I used before and checked 2 monitors.
The PC started up. This is neither the main unit nor the PCI slot.

Next, I checked the monitor cable.
Even if I examine it, the cable is not damaged.
The HDMI cable was brand new.
The power supply has capacity of 550 w.

I saw the HDMI slot of the GT 430 I was removing.
The HDMI slot of the GT 430 was very dirty.
“Oh, I had not used it at all, I had been inserting and pulling out many times without properly entering it …”
I noticed that the HDMI slot was dirty.
So, I cleaned the GT 430 cleanly.
And cleaned the dust inside the PC, removed the front panel, cleaned the dust.

Just to be sure, opening the panel of the PC, mount the GT 430 and starting with 2 monitors, started smoothly.
This trouble was found to be poor contact of the cable inserted in the uncleaned HDMI slot.
Previous trouble. There was a trouble of the built-in battery which the cooling fan keeps turning.

The trouble this time was also an event that reaffirmed that PC has the function to inform us of trouble by rotation and beep sound of cooling fan.

Other, about the search of symptoms that PC does not start.「PC startup trouble judgment

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