Finally got it - SAMSUNG Samsung 850EVO 250G M.2 SSD

This original is connected to a DIY original sequel, because the students in the last chapter after the completion of the machine and whim to add a SSD, just put the total price rushed 5K, be regarded as the title of the previous Really.


6.18 in front of the students asked me to DIY, initially indecisive, not only the whole budget 3K to 5K, not taking advantage of lower prices to buy 6.18, so I installed the machine, and he turned the corner and is "still add SSDs. ” It was a bloody screen. It only came to me at this time. I had to help him find a new SSD because I hadn’t bought an SSD. His motherboard was a relatively new M.2 interface. The first recommendation is to take the PCI-E bus, the newer Samsung 950 PRO 256GB M.2

I am on Amway. This is the latest NVME (Anyway, I don't pay for it. I don't want to be too busy.) Advanced UBX chip can fully utilize the performance of M.2. If you choose the old type of SATA interface, it is much slower. Since there is a new M.2 interface, it is wasteful to try to use a new interface. There are two specifications in M.2. One goes through the PCI-E bus, and the other still takes the SATA bus. The former is faster and the latter is faster. With the traditional SATA interface almost occupy the last SATA interface.

Although I did some work, he was scared back by the price, 950 PRO price is almost double the price of SATA bus, but the speed increase is several times, it should be said that the choice of higher cost; he eventually Did not choose, designated to M.2 interface to go SATA bus, I helped him to rediscover it again, considering the Samsung SM and PM series on the Taobao, but he only buy licensed, this valuable thing Generally not on Taobao, I am afraid that if there is trouble in the future, it is just a mention; afterwards, given that this classmate is buying something to talk about, I recommend a Samsung 850 EOV, one for Crucial and the last one for Kingston. Both are 256G 2280, when the 850 EVO quoted as high as 859


The other two are all around 700. My classmates uphold his tradition of always looking at the brand and resolutely decided to choose the Samsung 850EVO MZ-N5E250BW. Even if he knew that the special price for the last few days of 6.18 was 699, he could not imagine that I was giving What does he recommend for Intel? Fully followed him through, explained in detail the characteristics of this particle and master, and explained that the positioning of EVO this series is certainly lower than PRO, and there is a risk of speed, licensed estimates will not be overturned, but still Remind him not to put too important documents into it.

MGX Controller is the main control. Although the particles of 32-layer 3D V-NAND are TLC, as far as TLC, MLC, and SLC are concerned, it seems that the dispute is not so important. Of course, you are welcome to discuss it in the commentary area.

The following friend bought the MSata version of the 850 EVO and the capacity is also 250G. Although the test software is different, the speed is roughly the same.


Sun single

Jingdong arrived on the second day and my classmate took my machine at home in the evening. Nima, I haven’t given you a data migration yet, so I had to urge him to do so. Under the hurry of data migration.

Guotong agent, the appearance of a little dirty, positive on the clear SATA, for fear that you bought the wrong?

After opening it, I saw that the sticker covered all the chips. I wanted to peel off the stickers and look at the chips with a hair dryer. However, I think after all, it is to buy other people or buy them. But do not send a screw, I heard that some motherboards do not have screws, I do not know if this is the case, anyway, we have ready-made screws on this motherboard.

The installation is relatively easy, because the original CPU heat sink is relatively small, do not have to remove the heat sink, screw a screw on the line, I also heard that some motherboards after the installation of SSD because the back is not fixed with the motherboard is not parallel, prone to contact problems There are 3 well-made nuts on the back of the motherboard, corresponding to 2242, 2260, and 2280. We directly mount it on the top of the 2280, and it is very stable after being installed.

Power on test

Install Samsung's Magician Software first to see the effect.

Well, it's fine, everything works and data migration can begin.

Data migration failed due to unknown reasons

Because I had previously installed win10 on a mechanical hard disk, this time I want to directly migrate the past is the easiest, specifically to the Samsung official website to download a dedicated data migration tool, the new version supports win10, Data Migration Tool, this is also the official website Can be found.

At this time, the problem came. It was the easiest solution to migrate in the past. The mechanical hard disk was the 2T hard disk of ST. Win10 was upgraded from win7, so it was a traditional MBR structure, not a GPT structure. Can not find the source disk, note: can not find SSD, can not find the original mechanical hard drive, click OK in the figure above, you can actually see the target disk, you can not find the source disk.

Google for a long time, all kinds of methods and reasons have been tried, it was said that the Microsoft Storage Spaces SMP this service did not start, I went to include all of the services of Storage are not automatically changed, modify the SATA options in the BIOS Useless, partition and format SSD to GPT, or not, because Samsung Samsung customer service is not found. The last thing I can only suspect is that this program doesn't support migrating MBR structures under win10. It only supports GPT, and after four hours of hard work, it finally gives up.

Reinstall the system

Due to the inability to relocate as planned, the system has to be reinstalled. The advanced system can see if it takes up one SATA.

The last SATA was taken up.

As you only have win7 to install U disk, so it makes do with it, go in and found that win7 can not recognize GPT, had no choice but to go back and reformat into MBR, only to be installed successfully, taking into account 256G is not too large there is no partition, Calculate directly on a C drive.

After the installation was completed, I ran again with Magician Software, reading 550 M/S, and writing 516 M/S, similar to the promotion.

This is the legendary OP value changes, the software is more intuitive and easy to use, through the OP settings can theoretically play a role in extending the life, but there is no special case or choose the recommended value, after all, I was also the first time to install SSD.

This is the magic RAPID technology, I just opened, mentioned later.

IRST installed, how is the mountain size 512? And I don't seem to have adjusted the IRST function in the BIOS. Do you not need to open it?

Then SSD-Z to test, here is a bit puzzled that Sector Size is not actually 4K alignment, is 512, and now the direct installation system is not the default 4K alignment? Do I get it wrong? When the same installation disk was installed on a mechanical hard disk, it was still 4K, and now it becomes 512. It really hurts.

SMART's related information, it looks like no problem.

Bake the hard disk, the first data is still normal, is why so many write can not be implemented? Regardless, AS SSD and CM testing will be used later. The second data is more amazing. I'm a little bit more than 1200. I have a comparison with NVME. Is it wrong to send the wrong product? Made NVME? Or start the test later.

This data seems to return to rationality.

This is the famous SSDOK, the information is very comprehensive, and some I do not understand, here you can see that I am AHCI mode, not NVME mode, if it is NVME then should show the latter.

The first picture is the bus diagram of B150. The second picture is the technical classification of M.2. It can make it easier for everyone to understand the difference of 2 different specifications in M.2. of.


This is the authoritative AS SSD speed measurement. Here, I've done a thorough job and the speed has gone to 3000M/S. Both are close to the Socket 3 interface 4G/S theoretical speed. Then the 1024K shown in the upper left corner of this place is OK, which proves that it is 4K aligned.

Shutdown, restart again

Try to change the crystal is actually such data, all on the 5000M/S, and looks like it has exceeded the theoretical value of NVME, and this is certainly wrong.

Calmly think about where it is wrong, IRST should not have such ability, it must be caused by RAPID, and shut down with good results. This technology is somewhat similar to the temporary RAMDISK technology that allows a portion of the hard disk contents to be pre-read into the memory, the speed becomes a memory speed, naturally much faster, in theory, the mechanical hard disk should also be applicable.

The speed returned to normal. The average of three consecutive measurements was 429 M/S.

CrystalDiskMark really data more sexy point. Read and write more than 500M/S.

SSD-Z is still invisible to the part that writes data.

to sum up

The purchase was a bit of a loss and did not catch up with the 6.18 activity price. Although I temporarily found that the price cut to 718 yuan, and quickly adopted price protection to recover the loss of 141 yuan, but if he began to think clearly it should be able to find better Timing and price start. This is my one-time price protection. I used to wait for the price to be DIY.


The main purpose for him to buy back is to learn AE. SSD should help AE to open the material library as soon as possible. It should be obvious for the performance improvement.

Always turning on RAPID does not know that memory pressure will not be great, after all, he did not choose dual channel at first.

Originally wanted to re-adjust it to 4K alignment, but it was a rainstorm that day, and he hurried to go even if the 512 may have a little impact on performance.

During the test, the temperature reached 69°C for a period of time. This thing was close to the CPU heat sink and the operating temperature reached 70°C. It was learned that once the temperature was reached, it would automatically decelerate. It would be better if it had a heat sink.

The data migration failed. The reason was unknown. However, because he had already moved the machine home, he had no chance to understand it. If there are also problems with the same problems, he can tell you.

Not on NVME is a pity.

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