Cleaning and maintenance guide for computer room cabinets

Introduction

Computer rooms, cabinets, servers, these hardware devices need to be involved for most operations and maintenance, especially those friends who are involved in hardware operation and maintenance, computer room operation and maintenance, and IDC operation and maintenance, also need to Considering how to do daily equipment maintenance and cleaning, this article has collected some experiences for your reference

1. Preparation work for cabinet dust removal 1. Set a reasonable dust removal cycle

Set a reasonable dust removal cycle according to the specific conditions of the computer room, and clean the interior of the computer room, the exterior of the computer room, and the interior of the computer room equipment separately. Taking a medium-sized computer room as an example, the internal sanitation of the computer room should be cleaned every three days and thoroughly cleaned every half month; the external sanitation of the computer room should be cleaned every day, and the dust adsorption of equipment should be checked every week. Equipment that needs cleaning should be cleaned every Clean once a month; carry out intermediate maintenance of the computer room equipment and equipment every two years based on actual usage; carry out overhaul of the computer room and equipment every five years.

2. Beware of static electricity hazards

When disassembling and cleaning the equipment, you must first avoid damage to the equipment caused by electrified personnel. Before cleaning, you should put on anti-static clothing and wear anti-static rings and other equipment. Avoid dismantling the machine while it is powered on. It must be done when the power is completely cut off and the server is well grounded, even for devices that support hot swapping, to prevent static electricity from causing damage to the device. Equipment such as monitors should be discharged first.

3. Understand the device structure

Since computer room equipment comes from different manufacturers, their designs are different. In particular, many brands of server chassis have special designs that require special tools or mechanisms to open. When removing the chassis cover, you need to read the instructions carefully and do not force it. disassembly.

4.Select cleaning tools

Cleaning of the equipment does not require very complicated tools. For general dust removal maintenance, you only need to prepare a Phillips screwdriver, a flat screwdriver, a paint brush or an oil paint pen. A hair dryer, anhydrous alcohol, cooling silicone oil, absorbent cotton balls, clock screwdrivers, tweezers, and leather tigers are also necessary tools. For simple maintenance, you also need needle-nose pliers, test pens, multimeters and other equipment.

Note: Do not use ordinary brushes and other brushes that are easy to remove hair, otherwise it will easily damage the machine. Pay special attention to the dust removal of the power supply.

2. Cabinet dust removal skills 1. Cleaning the motherboard

As the basic hardware of the entire device, the accumulation of dust on the motherboard is most likely to cause problems, and the motherboard is also the most likely to accumulate a large amount of dust. When cleaning the motherboard, first remove all connectors and unplugged devices should be numbered to prevent confusion. Then, remove the screws that fix the motherboard, take off the motherboard, and use a wool brush to brush away the dust on each part. During operation, the force must be moderate to prevent the chip components on the surface of the motherboard from being knocked off or loose components resulting in false soldering. Areas with excessive dust can be cleaned with absolute alcohol. The temperature measuring components (thermistors) on the motherboard must be specially protected, such as using shields to block them in advance to avoid damage to these components and cause protective failures on the motherboard. If there is too much dust on the slot on the motherboard, you can use a leather cleaner or a hair dryer to clean it. If oxidation occurs, you can use paper with a certain hardness and insert it into the slot to wipe it back and forth (with the smooth surface facing outward).

2. Handling of connectors

The surface of the connector can be cleaned with the same method as cleaning the motherboard. If there is oxidation in the connector part, you can carefully wipe the gold finger clean with an eraser. After inserting it back into the motherboard, use hot melt glue on both sides of the slot. Fill gaps to prevent dust from entering and oxidation during use.

3. Cleaning the fan

There is usually a lot of dust accumulated inside and outside the fan blades. We can hold the blades with our hands and use a brush to remove the dust on the blades one by one, and then wipe the inside of the fan and fan frame with a damp cloth. You can also add some lubricating oil to its rotating shaft to improve its performance and reduce noise. The specific refueling method is: uncover the oil barrier to see the fan shaft, turn the blades by hand and drip a little lubricating oil into the shaft to fully penetrate it. Do not add too much oil otherwise it will absorb more dust, and finally apply the oil block.

For the structure where the fan and heat sink can be separated, the heat sink can be removed and cleaned thoroughly with water. If there is little dust, you can use a soft brush and a blower to clean it. For the heat sink that cannot be separated, you can use a hard brush. Clean the dust in the gaps and blow the dust with a hair dryer. The cleaned heat sink must be completely dry before reinstalling it. When reinstalling the heat sink, it is recommended to apply an appropriate amount of thermal conductive silicone grease to enhance thermal conductivity.

4. Cleaning the surface of the box

For dust accumulated on the inner surface of the chassis, you can wipe it with a wrung wet cloth. Note that the wet cloth should be as dry as possible to avoid residual water stains. After wiping, it should be dried with a hair dryer.

5. Clean peripheral plugs and sockets

For these peripheral sockets, generally use a brush to remove loose soil, and then clean with a hair dryer. If there is oil stain, use absorbent cotton balls dipped in absolute alcohol to remove it.

Note: You can also use detergent when cleaning, but the detergent needs to be neutral, because acidic substances will corrode the equipment, and the volatility of the detergent must be good.

6. Cleaning the power supply

The power supply is a device that easily accumulates dust and is seriously affected by temperature. When disassembling the power supply, be sure to pay attention to the internal high voltage. If you do not have certain professional knowledge, do not disassemble it without permission. If you don't want to disassemble it, you can use a hair dryer with a strong setting to blow out the dust from the power inlet, and use a stiff brush to clean the fan blades through the fan filter.

Note: Users are not allowed to disassemble the equipment in the cabinet by themselves, otherwise the manufacturer will void the warranty. Contact the equipment manufacturer for confirmation before disassembly. Each component should be handled with care, especially the hard disk, and must not be bumped; the screws should be tightened appropriately, and insulating sheets should be placed at the required parts; after dust removal and maintenance, reinstall the hardware into the chassis cabinet, connect the cables and power supply, and leave it open without covering it. In the case of a chassis, test run the system first to see if each fan is running normally and if there are any loose connections or abnormal noises.

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