subject: Analyse The Cause Of Flashing Screen [print this page] Recently one friend has his Compaq CQ60-218 LCD screen flashing within no reason. So he came to me for help. The fact of the laptop is that when you boot the laptop, it turns to flashing. Even after restart the system, he found it the same problem. That is really annoying to have a flashing screen.
According to the description of his dell CQ60-218 LCD screen, we can easily find that there might be something wrong with its graphics, or may be the graphics card, or motherboard, or the corresponding access slot. Well, as to his laptop it needs more time to turn it out.
First to make sure the graphic card correctly and appropriately fixed to the laptop. So we find that the graphic card is in stable work condition. That proves what I suspect before. The problem is the slot.
Then, I will check the key focus to the graphics card slot on the motherboard. Taking into account the board slot failure, there are often two reasons: the first is the dirty slot. These foreign bodies may hinder graphics card slot close together, leading to poor contact, which will eventually lead to repeated failures. Another reason is that the motherboard graphics card slot due to the impact of frequent mating may occur too loose socket interface, so even if reluctantly into the graphics the corresponding slots in the motherboard, graphics card cheat slot can not be stable and have good contact. This way the display screen is still not stable display may appear the phenomenon.
According to the above analysis, we can see that the cause result from the loose slot. To test whether the loose slot interfaces, I insert into the corresponding slot graphics card after pulling the card to the slot gently which shook on one side. I am really sure that repeated failure is a result of too loose slot. After repair this situation, the CQ60-218 LCD screen now properly display content without flashing any more.
Summarize the above phenomenon; I believe that the phenomenon of repeated flashing screen is most likely caused by a bad contact, but with little to do with the quality of its graphics card. So do not in panic when you encounter this problem. Check the graphic card slot and then make your decision. Its wise to find an expertise to repair it.
