January 18, 2021

Samsung 850 EVO SSD on SATA II – installation, speed test

Samsung 850 EVO SSD speed test on SATA II port

Unboxing, installation and speed-test the Samsung 850 EVO SSD drive on an old SATA 2 ( SATA II) port in my SATA2 MB, Abit IP-35.

Testing the Samsung 850 EVO V-NAND SSD drive 2.5 inch size that fits both in laptops and in a desktop PC.

When installing the SSD in a desktop computer, you need a HDD bracket adapter from 2.5 inch to 3.5 inch HDD bay. If your case has a 2.5” HDD bay you won’t need any adapters.

The SSD shown here and in the video is the 500GB version.

Make: Samsung Electronics
Model: Samsung 850 EVO
Type: Solid State Drive
Interface: SATA III (SATA 6Gb/s), compatible with SATA II (SATA 3Gb/s) and SATA I (1.5Gb/s) Interface

Up to 540 MB/sec Sequential Read
Up to 520 MB/sec Sequential Write
Supports: Trim, AES 256-bit Full Disk Encryption, S.M.A.R.T., Garbage Collection.
Reliability (MTBF): 1.5 Million Hours (MTBF)
5 Years Limited Warranty or 150TBW Limited Warranty

SSD performance when used in best conditions – SATA3 can achieve the bellow speeds but we will test it on SATA 2.

If your PC is running SATA in IDE mode you should change to AHCI mode to increase performance.

Install the Samsung Magician app/program and it will tell you if Trim and AHCI are enabled.

Normally when changing from IDE to AHCI you would need to reinstall the Windows operating system but there is a way to avoid that.

As shown in the video, this is the Regedit registry editor key path:
Find the D_WORD key named “0” and double click to edit it’s value
Change the value from 3 to 0

Restart windows and check in Samsung Magician that the AHCI is reported as enabled.

Use the Data migration tool / application to clone the old hard disk on to the new SSD.

Doing this helps you save time but watch carefully in the video that there are some potential problems that you can avoid if you follow the steps.
Once cloning is complete, the SSD will become the system drive.

Tested the SSD on SATA2 and even though the sequential read spead is limited by the SATA II interface bandwith, the random access speed is much much greater that what the old HDD was able to provide.

In the test we reached more than 280MB read/write speed and in the real world that should make it worth upgrading to SSD even if you don’t have SATA 3 (SATA III) ports on your motherboard.

Could have used a slower drive because the interface is the bottleneck here but this was the cheapest 500GB drive I could find locally at the time we bought this.

If you thing about upgrading to SSD, do it! 🙂

Brand doesn’t matter, any SSD will be faster than your old HDD!
Just think about how much space you need, and then find the cheapest from any of the top 5 SSD manufacturers.

Write a comment bellow if you upgraded your PC storage and are excited as I was when saw the speed of this thing! 🙂

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  • Hi, my mainboard supports sata II and I want to buy an SSD. I want to know if windows and its background transfers are considered small files or large continuous files. because in your benchmark the difference is huge.

  • The SSD benchmark is on 10:15

    The brand and SSD model actually matters, some have worse quality memory cells, cheap/bad controllers, which leads to issues, like slow speed (especialy when disk is almost full), no programs (like Samsung Magician), no firmware updates and faster wear out

  • Technically fragmented files and especially for page file fragmentation are the same as multiple random files for a hdd.

  • Abit IP35 with scythe ashura? Your cooler much more expensive than your motherboard with CPU 🙂

  • gotta love SSD and USb manufacturers. there advertise a certain storage but you get significally less. packaging has 500gb, actually got 466gb.

  • I have solution to you guys, you should buy PCI express card sata 3.0, when your motherboard don't support sata 3, its seems like you use sata 3 on your motherboard, 🙂

  • It's been 3 weeks since I've install a SSD in my old 2nd Gen Intel processor spare pc. I was watching your video just for fun bjt I didn't realised regarding changing from IDE to ACHI mode for the new SSD. Thank you very much for your informative video!

  • My Dear God, Poor Man … I don't know if I have ever seen speeds that slow (10:02). That hard drive was like you being pulled by oxen … Slow way to go to town, Buddey. Feel for you. Glad you come into the year 2000's … from the year 1530 …

  • I have SATA II on my laptop and wasn’t sure if getting a SSD would be worth it, but this confirms it is still worth it. Thanks! I got a Toshiba 240Gb SSD and a cloning cable.

  • before watching this video I think my SSD has a problem because the speed of my SSD is only around 200-250 MB/s, I've tried all of possible way to improve my SSD such as change IDE to AHCI but there is no change. Then, I think the problem is because I still use SATA 2 on my motherboard (ASRock 985GM). In my opinion, the SSD will get higher speed if it is installed on SATA 3 CMIIW.

  • Nice SSD this are wherry a turboboost for PCs or laptops. but wherry important deactivae some services in windows tu save live span of ssd ( search indexer, prefetch, superfetch, windows update )

  • I am buying tommorow ssd can you explain my do i need yo make partitons on it and do i need to install steam on it on i can do that on hdd and put only games on ssd. What staff i need to do when installing ssd

  • THANKS!!!!! this has been driving me nuts and loss of sleep with this SATA II 3gb crap going 1/2 speed. This confirms my speeds are a tiny bit slower but close so its not me or something i did wrong its SATA II 3gb vs SATA III 6gb well glad that is over. Cheer's brother 😉 drinks on me.

  • Do you suggest installation of SAMSUNG 850 EVO on my HP Compaq 6000 pro SFF with Intel Core DUO and 4 GB of RAM?

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