This homework failed, report my weekend work:
Scenario 1 Process:
1. Use the motherboard clip to test the motherboard BIOS chip;
Mainly because this step took a lot of time, the main reason is that there is too little space around the BIOS chip on the motherboard to place the clip;
The BIOS chips on the motherboard are relatively densely soldered, I am not confident to remove them, and I am not confident that they can be successfully soldered again;
So I had to use a utility knife to repair the thickness of the clip; I won't show the photo;
2. Finally repaired the thickness of the clip. After the clip can be removed, it was found that the two BIOS on the motherboard, only the one close to the heat sink is likely to run successfully;
To be honest, when the RUN light is on, I am very excited; but because the BIOS chip on the motherboard is too close to the heat sink, there is no space for the clip;
3. Continue to use a utility knife to repair the thickness of the clip, and almost cut out the metal pieces of the clip; finally, after three hours of fighting, the BIOS chip was successfully clipped;
Although I don't know if the power line of the BIOS is clipped, I connect the USB programmer;
4. The power light of the USB programmer flashed and went out; it was finally broken after I hot-swapped it many times. . .
5. Japan's e-commerce services and prices are relatively high. I plan to take a break for a while, and I really feel a sense of failure.
To sum up, the BIOS design on my MSI motherboard is really good. It is estimated that it is designed so compactly to prevent the use of programming clips;
There are also clips that cost between 6 yuan and 10 yuan in mainland China, and sell for 1,000 yen in Japan, and the quality is the same;
Due to the repeated use of the clip to open and close, the finger of the thumb is severely worn and painful, and it is almost better than playing a guitar;
Scenario 2:
I had to consider whether to use soldering to do it, but also because of the tight space on the motherboard, I really have no confidence;
Scenario 3:
Another option is to wait until the second-hand motherboard is cheap enough to accept the price, and then buy a new one. Of course, to be able to encounter second-hand motherboards.