Anti-static treatment

When the weather is dry, the human body rubs against the clothes, which easily generates static electricity. This static electricity may cause damage to the chips on the integrated circuit. Therefore, it is necessary to discharge the static electricity on the human body when directly contacting the circuit board or related boards. Before touching the device, you should wear anti-static work clothes, anti-static gloves, or anti-static wrist straps, and remove easily conductive objects (such as jewelry, watches, etc.) on your body, as shown in the figure, to avoid electric shock or burns.

The method of wearing an anti-static wrist strap is shown in the figure.

1. Insert your hand into the anti-static wrist strap.
2. Tighten the buckle to confirm that the anti-static wrist strap is in good contact with the skin.
3. 3. Insert the ground end of the ESD wrist strap into the ESD wrist strap jack on the cabinet or chassis (grounded).

Protection against liquid splashes on the circuit board

If there is liquid on the circuit board, it is easy to cause short circuits and corrosion of the circuit board. During operation, avoid liquid splashing into the circuit board.  So, the requirements are as follows:

1. Try to avoid liquid in the operating range. If there is liquid, cover the circuit board properly and do not place it near the liquid.
2. When the ambient temperature is high, paying attention to the human body is necessary to avoid dripping sweat onto the board.

No violent disassembly

Usually, the assembly or disassembly of components is nicely designed. Please follow the instructions for assembly or disassembly. If it is found that a certain part cannot be installed in the pre-installation position or can't be removed, there are usually structural control parts. Pay attention to the priority of disassembly and assembly, and do not disassemble and assemble the parts violently. Recommended:

1. Strictly follow the product operating instructions.
2. You can consult someone with experience in disassembly and assembly.
3. Special attention should be paid to the use of tools, and the circuit board should not be scratched due to inattentiveness.

Avoid falling debris

Usually, electronic components are relatively fragile. Be careful not to drop heavy objects and hit the circuit board during operation. There is a high probability of component damage, and verify that no small component falls on the main board. These small parts may also cause short circuits when powered on, so be careful of foreign objects falling. Usually recommended:

1. Disassemble the equipment and place it on a workbench or desktop for operation.
2. The parts must be held firmly and prevented from falling during disassembly and assembly.
3. Small accessories such as screws should be placed outside the equipment.
4. Arrange the wiring after installation, and confirm that no debris is left inside the device.

Power off operation

The components involved in the operation on the motherboard, such as memory, CPU, PCIe expansion card, etc., must be powered off, not only shut down but also need to unplug the power cord. Individual components, such as hot-swappable hard disks, redundant modules, etc., can be directly replaced while the device is working.