The notch at the gold finger of the memory module, the reason why the gold finger of the memory modu

No, these two kinds of memory, one is SDR, which is the old one, and the current one can't be used. SDR has two notches, and DDR has one notch.

Now there is DDR2, and DDR2 is used more now.

Memory, you can't mess with the motherboard, SDR can only go up to the three, and DDR is the one that goes up to the four. The current DDR2 is on a dual-core motherboard.

You can't insert two different memory, you are talking about only one DDR memory, the highest frequency 400, and one of the two notched memory slots that are SDR memory slots, which support the highest frequency 133

It depends on your motherboard, if it's a compatible motherboard, you can plug in two kinds of memory, but generally only one can be plugged in, and compatible ones are rare. But I just have one. In general, you should insert two brands that belong to DDR or DDR2, and it doesn't matter if the brand is used.

No, it can only be the same notch!

Two? I didn't pay attention to it, it seems to be just one, right?

This situation often occurs, as long as you have done computer maintenance, I am afraid that you have encountered something similar to the burning of the counter-inserted memory. In general, most of the memory modules are burned because we are in the process of troubleshooting for a long time. Lack of concentration, inadvertently inserting the memory module in reverse or not fully inserting the memory module into the slot during the repeated boot test, or it may be caused by the live unplugging of the memory module'The gold finger burned out due to a local high-current discharge.

Only a very small number of memory modules are damaged at the same time due to accidental overvoltage or power supply damage during normal use.

However, the memory module is not necessarily scrapped after being burned out, and most of them can still be used normally, because the memory module has multiple power supplies and ground wires, and when it is reversed, it is often because the local ground wire connects the power supply to the ground, so as long as it is powered on, it will burn the ground wire that plays a short-circuit role, while other ground wires and chips are not destroyed.

1. Connecting finger is an electric blocking rock brain hardware such as: (between the memory module and the memory slot, the graphics card and the graphics card slot, etc.), all signals are transmitted through the gold finger. The gold finger is composed of many golden yellow conductive contacts, and is called "gold finger" because of its gold-plated surface and the arrangement of the conductive contacts like fingers.

2. All the data flow and electronic flow of the memory processing unit are exchanged with the PC system through the contact between the gold finger and the memory slot, which is the output and input port of the memory, so its production process is very important for the memory connection. Closure fluid.

The connecting finger is the connecting part between the memory module and the memory slot, and all signals are transmitted through the gold finger. The gold finger is composed of many golden yellow conductive contacts, and is called "gold finger" because of its gold-plated surface and the arrangement of the conductive contacts like fingers. The gold finger is actually coated with a layer of gold on the copper clad laminate through a special process, because gold is extremely resistant to oxidation and has strong conductivity.

However, because of the expensive gold, more memory is replaced by tin plating, tin materials have been popularized since the 90s of the last century, and the "gold fingers" of motherboards, memory and graphics cards and other equipment are almost all made of tin materials, and only some high-performance server workstation accessories contact points will continue to use gold plating, which is naturally expensive.

All the data flow and electronic flow of the memory processing unit are exchanged with the PC system through the contact between the gold finger and the memory slot, which is the output and input port of the memory, so its manufacturing process is quite important for the memory connection.

The so-called gold finger: refers to the more than 100 lead contacts under the memory, because its color is a bit like the appearance of **, so it is called the gold finger, so you don't know what it means to burn a gold finger, a memory only has a row of gold fingers, both sides, if it is burned out, it becomes black, or burned out, it is easy to see.

If the computer does not report an error, it means that there is no problem with the contact, then the memory can still be used and has no effect on other parts. However, it is advisable to carefully check the cause of burnout to prevent burning of other parts.

1. The memory gold finger is a neatly arranged row of contacts connected to the socket of the motherboard by the memory chip, which is generally gold-plated. When there is a possibility of contamination or oxidation caused by the peeling off of the gold film, an eraser is used to remove the dirt or oxide.

2. The common faults are as follows: sometimes because of humidity or after the computer has been used for too long, because the memory is polluted or oxidized, the computer starts up with a black screen, so as long as you use the eraser to remove the memory module and plug it back in, the computer can start normally.

1. "Gold finger" refers to a row of gold-plated contacts at the bottom of the PCB circuit board, whose main function is to transmit all signals between the memory and the motherboard. It is generally composed of copper and covered with a layer of gold with a special process to ensure that it is not oxidized and maintains good permeability. Because gold is extremely resistant to oxidation and is also very conductive, the greater the thickness of the gold plating on the gold finger, the better the performance of the memory.

2. There are two processes for gold fingers: electroplating gold plating and electroless gold plating, electroplating gold is several times thicker than electroless gold plating, and the uniformity of the plating is higher. It ensures that the signal transmission quality is not affected after multiple plugging and unplugging.

Many consumers have a wrong concept when buying memory, that is, they think that there is no trace on the gold finger of the new memory. It is important to know that the memory needs to be tested during production, and it is generally unplugged and unplugged once, so there will be slight insertion marks on the gold finger. However, if there are too many sockets in the memory that are too obvious, there may be a problem and a replacement piece should be replaced.

3. Precautions: When using it at ordinary times, it is necessary to pay attention to avoid using the computer for a long time in a humid place in the working environment and plugging and unplugging the memory for many times, which will cause oxidation or loss of the "gold finger", and will affect the service life of the memory over time, so the user can pay a little attention to the color and thickness of the gold finger when selecting the memory, and only the memory memory on the market is the highest thickness in the industry at 30mil to ensure the oxidation resistance of the memory in a long time and harsh environment. Users may wish to pay more attention to it when purchasing.

The golden hand of the memory module is the connecting part between the memory module and the memory slot, which is composed of many golden conductive contacts, and all the signals are transmitted through him. Because of its gold-plated surface and the arrangement of conductive contacts like fingers, it is called "gold finger". As shown in the figure below:

The gold finger of the memory module is a metal part, so it causes the memory to oxidize and rust due to contact with air during use, and gradually has poor contact with the memory slot, and finally causes the computer to fail to boot. In addition, in the process of repairing the computer, if you directly touch the gold finger of the memory module with your hand, it is easier to cause the gold finger to oxidize and rust, and if you directly contact the memory with your hand, the static electricity on the body is likely to break down the particles or capacitors on the memory.

What should I do if the gold finger on the memory module is oxidized? Generally, as long as you disassemble the chassis and unplug the memory module, wipe the gold finger with a napkin a few times, and reinsert it into the slot, it will work. If the failure occurs frequently, it may be a problem with the compatibility of the memory with the motherboard, and the only way to solve the problem is to replace the memory module.

The gold finger of the memory module is composed of many golden conductive contacts, because its surface is gilded and the conductive contacts are arranged like fingers, so it is called "gold finger" It is the connection part between the memory module and the memory slot.

The gold finger of the memory module should be wiped with an eraser, and it cannot be touched by hand, which is easy to oxidize, resulting in poor contact with the card slot of the memory module, resulting in a black screen when the computer is turned on, and the mouse and keyboard host are operating normally.

It can also cause the computer to run laggy.

How to clean the gold finger of the memory module:

1. Turn on the host to remove the memory, and use a brush to brush the dust on the memory module.

2. Use an eraser to clean the gold finger of the memory module.

3. Finally, you can reinstall the memory module back, and pay attention to the correct direction of memory installation.

1.First, use a knife to dig the burnt gold finger neatly along the edge, and then use the knife to continue digging until the shielding copper foil in the inner layer of the PCB is dug out, and a slot is dug out.

2.Find a scrapped circuit board, use a knife to remove a layer of floating copper on it, the thickness is about the depth of the slot dug in front, and cut it to the size of a single gold finger, and coat one end with a layer of soldering, the area is not too large, as a solder joint one.

3.A small amount of 502 is then dropped into the groove dug in step 1, and the copper sheet obtained in step 2 is inlaid with it.

4.Quickly flatten the inlaid copper sheet with tweezers.

5.After the glue has solidified. Prepare the wires and use the wires to connect the solder joint 1 and the circuit on the memory module PCB pointing to the gold finger.

Each gold finger has a circuit pointing to it.

6.After soldering, cut off the excess wires. Clean up the gold finger and you're good to go.