Used CPU price, used CPU value is not worth buying

e2140: 300 350 yuan Most of them are more than 300 310 350 315 and so on, e2160: 260 400 yuan is not = similar to 2140 e2180:

**Around 400 e2200: 380 450

The old E7400 is generally around 500, and the new one is 700+

E8600 new 1980 yuan, the old one is estimated to be no, if there is about 1600 yuan, basically no one buys it, it is better to buy this than to buy core

i7.

This is not the same in each region. CPUs with 478 interfaces are cheap now. I think you can just buy a piece. The second-hand CPU** in Shanghai is generally around 150.

It's only more than 300 to change AMD dual-core, so you don't have to think about it second-hand. More than 200.

It shouldn't be possible to buy second-hand.

7400** should be around 800 yuan.

New. Even if it's an old one.

Merchants will also sell in bulk.

I won't sell it as a second-hand one.

Even Intel's motherboards can be good and bad. A 03 computer, if it's an 845 motherboard, the CPU is supported at most, but it's better not to do that. Because it's not worth it.

Because the computer in '03 may hang up at some point. If you can, you can do it.

A 945g motherboard will be faster with 630 speeds.

If you want to change the U one, you'd better use 631

The 630 itself has a high power and heat (this is what the old machine at home uses).

It is difficult to find second-hand CPUs because the machines are not bad, and others sell them as a whole. If you want to buy it, you only have to go to ** to see.

You might as well go to the second-hand trade** and take a look.

Different series and different models**.

**The CPU (Central Processing Unit) is a very large-scale integrated circuit, which is the computing core and control unit of a computer. Its function is mainly to interpret computer instructions as well as process data in computer software.

Used CPUs are worth buying.

CPU is not easy to break.,There's nothing bad about sex being able to use ** in the case of suitability.,My own main CPU is AMD's A4 3400,13 years at that time, about three hundred used until now, I don't feel that it's not enough.。

If it doesn't break, it can be used.

The CPU accessory does not matter whether it is new or old, as long as there is no problem with the test after installation, if the motherboard or other hardware is not damaged, it is used normally, and the CPU is used for a very long time.

1. Identify whether there is an indentation at the ear of the CPU top cover, if there is an indentation, you can determine that the CPU is a used product.

2. Check whether the top cover of the CPU is clean, if there are traces of silicone grease, it is a used product.

3. Whether the top cover of the CPU is printed with the model of the CPU and other parameters, if not, it can be judged as a polished product after use.

The CPU has a powerful arithmetic unit that can complete arithmetic calculations in very few clock cycles. At the same time, there is a large cache that can hold a lot of data in it. In addition, there are complex logic control units that reduce latency by providing the ability to branch when the program has multiple branches.

The GPU is designed based on large throughput, with a lot of arithmetic units and very little cache. At the same time, the GPU supports a large number of threads running at the same time, and if they need to access the same data, the cache will merge these visits, which naturally brings latency problems. Despite the latency, it is capable of achieving a very large throughput due to the large number of arithmetic units.

There is no fake CPU that works.

So it's still more reassuring.

But this thing can also age.

It is not recommended to use it for more than three years.

Good luck after three years of performance decline.

CPUs don't have regular fakes and can't be repaired, so used CPUs can be bought. However, there are a few things to keep in mind.

**Don't buy it if it's too cheap, although the CPU is not fake, but the words on the CPU cover can be faked, such as the E3V3 with the 771 interface to deceive people more.

Buy return insurance before purchasing, and test the goods in time to avoid buying a bad CPU.

As long as it works, there is no problem, and it does not affect the use. The chances of a bad CPU are extremely small!

CPUs generally don't break, and there won't be knockoffs, but whether it's worth buying depends on luck. I bought a second-hand CPU, it lights up once, and the performance is good, but the heat is very strong, the standby is 68-69 degrees, 75 degrees when you open a web page, and 80 degrees directly when you open a game! I checked the silicone grease, it was evenly applied and not thick, and I checked the fan, which was running normally and the speed was more than 3000.

Swapping back into my old CPU, the temperature dropped back to around 38 degrees. It's not clear if it's because this CPU itself is too hot, or if it's too old and aging internally (12 years old)? I had to return it.

Therefore, I personally think that the second-hand CPU should not be chosen for too long in that year, and there is a great possibility of overturning; The second is to carry out a stress test after buying, if the heat is too large or the operation is stuck, return it, don't believe that the seller's heat is not good for your cooling system, Caton is your memory is not enough, etc., originally to pick up cheap, but you have to pay for additional configuration and fall into the pit.

1. The CPU is second-hand and can be purchased and used.

2. CPU (Central Processing Unit)** processor is a super-large-scale integrated circuit, which is the computing core and control unit of the computer.

3. At present, the CPU manufacturing process has reached the micron level, and the process trend is developing more and more in the direction of high density, and the higher the density, which means that in the same size and area of IC, there can be a higher density and more complex circuit design.

3. So, there are no regular fakes in CPUs and they can't be repaired, so second-hand CPUs can be bought.

4. Precautions:

1. For the same specification and model, don't buy it if it's too cheap, because although the CPU is not fake, the text on the cover of the CPU can be polished and faked.

2. If you shop online, you should give priority to buying freight insurance or buy return insurance yourself, and after receiving the goods, you must use software (CPU Z, etc.) to test whether the model is consistent, and you can return the goods in time if you don't light up to avoid risks; Those with a warranty period are more secure.

How to tell if it is a second-hand CPU, just look at these three details, Xiaobai is not afraid of being pitted.

The CPU can't tell if it's second-hand. There is no such software. You can only see by the appearance of the CPU model if it is second-hand.

Moreover, the quality of the CPU itself is quite ***. Even the quality of second-hand is generally no problem. It can be said that it is the most *** of the second-hand hardware.

The Internet looks at whether the electric shock is worn out, and the AMD loose film basically can't be seen.

Is it worth buying a used CPU.

Just recently, some users want to assemble a game console with i7 processor, but, the budget is limited, the ninth generation i7-9700K F, i7-9700 F processor has basically reached more than 2300 yuan, so I am ready to start with the second-hand i7-7700, the current market ** about 1900 yuan can be done, and you can also install the win7 system. After the installation user explained the situation, I ruthlessly vetoed it, because the choice of the ninth generation of the new is more suitable, **cheaper, the performance is higher, the ninth generation processor wants to use the win7 system with B365 motherboard.

As long as it is an electronic product, there will be a situation of upgrading, the eighth generation of Intel compared with the seventh generation of processors The comprehensive performance has increased by 40%, but the market has a serious inversion of the seventh generation processor, let's take a look at a set of data comparison.

The ninth-generation i3-9100F is slightly more powerful than the seventh-generation i5-7500, but the second-hand i5-7500** is half as expensive as the all-new i3-9100F.

The ninth-generation i5-9400F is slightly more powerful than the seventh-generation i7-7700, but the second-hand i7-7700** is half as expensive as the all-new i5-9400F.

The embarrassing thing is that Intel's new ninth-generation CPU + brand-new motherboard is not as expensive as a CPU of the old model of the previous generation! The key performance is even higher!

The ninth generation of Intel also has a performance improvement of about 5%-10% compared with the eighth generation processor, and there are also upside downs, let's take a look at a set of data comparison.

The ninth-generation i3-9100F is slightly more powerful than the i3-8100, but the i3-8100** is a bit more expensive whether it is used or brand new.

The ninth-generation i5-9400F is slightly more powerful than the i5-8400, but the i5-8400** is a bit more expensive, whether it's used or brand-new.

Therefore, not all second-hand CPUs are worth choosing, many generations of CPUs have this upside down situation, buying second-hand CPUs, you can refer to the CPU ladder diagram to understand the performance grade comparison of the old model CPU and the new CPU, and then compare**, if the ** difference is not big, or the old model upside down is more expensive, it must undoubtedly choose a new generation of products, and there is also a warranty service.