CPU LED에 불이 켜져있네요.
CPU LED에서 안 넘어가고 있습니다.
수리 후에 CPU LED를 넘어가고 있네요. 키보드 넘버락 LED에도 불이켜지고 바탕화면으로 진입됩니다.
https://m.blog.naver.com/dongtancom/222320496857
https://03180152456.tistory.com/258
This is your computer that Dongtan 1 New City (Bansang-dong, Hwaseong-si) visited me because the screen is not on. It's a computer that visited me during lunch time, so I checked it after lunch time. The CPU LED is on the Easy Debug LED as shown below. Although we suspect CPU failure, we usually have a very low CPU failure rate, so we've basically started checking where we can check it (although CPU failure rate has gone up more than before, it's not that common).
As a result of the correlation check, one lever of memory stuck in the memory slot on the left is out of stock. I think you've tried reinstalling the memory that was posted on Internet bulletin boards, intellectuals, and YouTube. It was a good attempt to refit, but it seems that the memory slot was not properly refitted and was installed in the opposite direction. If you install the memory in the opposite direction, the gold finger of the memory may burn, so be careful.
It's in stock. You put the memory in the opposite direction.
If the gold finger is broken by plugging it in the other way around - it's a picture that's been soldered to a certain extent. (I didn't do it, but your memory)
Goldfinger Corrupt Memory
https://dongtancom.blogspot.com/2017/03/blog-post.html
Fortunately, after re-installing it in the right direction, the CPU LED is passed and the RAM LED is moving on.
It's moving on to the VGA LED.
After booting, all the LED lights went off.
The number lock LED on the keyboard turns on.
Check to see if it's working properly to the desktop.
We finished with computer cleaning and re-applying thermal grease.
Since it's been used for about three to four years, it's highly likely that the old thermal copper is completely hardened. So we disassembled the CPU cooler, wiped the hardened thermal compound on the CPU, cleaned the interior slot dust, and re-applied the thermal grease.
There is a lot of dust on the air intake filter on the power supply side of the computer. It would be nice if you could clean the filter regularly. In fact, it's not easy to clean a computer at home. It's rare to clean up. When dust starts to accumulate, it can block the vent like a carpet. If you don't think you're going to clean it once a year, I think it's better to open it without a filter than to block the inlet with a dust filter.
Underneath, the case was wiped with a wet tissue (yellow dust was cigarette smoke-nicotine)? is often the case after case. You can't see it with your eyes, but living dust builds up on the side of the case. Dust accumulation is not visible to the eye, but the fine dust (dust) or moisture accumulation in the interior of the computer also appears to create an oxide film (rust) on the surface of the metal and cause poor memory access. (Defective memory access is a symptom that is frequently reported in winter and summer (rainy season). It is most frequently received on humid and rainy days.) If there are no devices (coating, soldering) on the surface of the metal, such as memory and slots, poor memory access can continue to occur if refitted. It's a part that can't be helped, so it requires self-maintenance.
You can visit a local computer repair shop to repair it, but I think cleaning the memory contacts is something you can repair by yourself. Especially, if you use a lot of computers, I think it would be good to check and maintain yourself before visiting the computer store. (If you're someone who usually breaks down the machine, you'd better leave it at a regular computer store. If memory connection is poor from time to time, you can also install a change in memory slot or change the memory itself into a different product.)
Yellow dust on the surface of the computer case - looks like cigarette dust.
https://m.blog.naver.com/dongtancom/222320496857
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