Update today March 27, 2019. Using the Inland Professional SSD 120gb from Microcenter SKU 410936 Mfr Part# 349381 UPC 618996723140 Which is a real cheap SSD gave me these speeds. I just ran CrystalDiskMark . Note the version top of the picture, and the size of the drive left. I have almost filled the drive. This is THE drive I mentioned before.. that was the 'pos' drive. I use this drive as my main SSD. I am pondering on getting a Crucial mx500 250gb or maybe another Inland Pro.. the price is just to cheap. I have not followed other threads or took note if anyone was having issues with Win 10 drivers. I am using Win 7 64bit right now. 3 web pages open when I ran the test.  Notice the scores of  ... View more

Thank you for the reply. Download CrystalDiskMark 6 https://osdn.net/projects/crystaldiskmark/downloads/68624/CrystalDiskMark6_0_1.exe/ just run it and call Samsung support, Memory. Tell the CSR your scores. I did all the ports on my board. I got 2 of them that actually ran Samsung Magician and CrystalDiskMark. All the other ports on the board would take about 27 minutes to run both Magician and DiskMark. When I explained to the Samsung Memory Tech Support CSR, he said the scores were about 100 lower then the hard drive average. I even uninstalled the AMD drivers and used Windows. Same words were reported from Samsung CSR's. With that said, I concluded the Samsung SSD would not work for my board. I even had the 860 PRO version. --- Right now, I bought a $22 ***** pos *SSD and the scores on 'certain' parts of that DiskMark test are higher then the Evo or Pro Samsung 860. I then realized I'm keeping this *TLC pos SSD, I put windows 7 64 on it and its being used as I am typing this to you. Seq READ........................WRITE Q32T1 468.2..................473.3 4KiB Q8T8 248.......................252.2 4KiB Q32T1 246.9...................252.5 4KiB Q1T1 40.02....................91.89 Now: 15 chrome pages open, photos open. GPU-z open. downloads open. I ran the DiskMark test again with all that open. 436.4...468.4 239.2....251.4 239.6....240.7 26.15....86.93 Not bad for a $20 SSD! ( TWENTY DOLLARS ) Microcenter * Inland professional 120gb (piece of s**t) scores higher then my Evo or Pro (on some results of this CrystalDiskMark) Another one I tested: PNY PNY S900 120 GB (sale for $36 Fry's) 488.3....447.2 213.5...188.8 158.6...138.4 24.55...67.77 Magician PNY 486 read....446 write 860 Evo: With Motherboard drivers Same version CrystalDiskMark 6 (Not CrystalDiskInfo) 414.1....502.0 34.75....68.74 117.0....196.4 45.67....99.68 Magician 75 read....502 write. HUGE ISSUE! Took 27 minutes to run both tests.. (EACH). Windows Chipset drivers EVO: 551.6....496.2 185.8....199.1 157.9....152.3 37.87....75.79 VS pos *SSD 436.4...468.4 239.2....251.4 239.6....240.7 26.15....86.93 Did I mention the *POS SSD is while my motherboard drivers are installed NOT windows drivers? So to use the Samsung SSD you have to use windows... and you don't get the full potential of the SSD so why are you buying it? Why buy that type of SSD when it is nerfed to fully perform on this motherboard chipset? AMD and SAMSUNG don't fix the issue. Various complaints with the 850's, Samsung still does not sort out the issue with AMD.. visa versa. ... View more

EDIT  UPDATE: ======= I found the cause of the issue.=========== The Chipset drivers from ASUS and AMD. In device manager, search for: IDE ATA/ATPI controllers Expand that you will find: " AMD SATA controller " Right click - properties - driver... Chose "Rollback Driver" This should uninstall the AMD Chipset driver and install microsoft driver.   *If this does not roll back, you MUST uninstall ALL AMD drivers (It might be part of ATI or catalist  which include all kinds of package drivers). You have to find the AMD file in " Program Files " " Program Data " " Program Files 64 " .. you must have uninstalled all AMD software and manually find the AMD folder to remove/delete it.. You have to show all hidden folders in the folder options in controll panel. These files will linger and conflict to re install .  I DID NOT unstall the drivers in Windows DRIVERS folder. BUT they could re install. IF they do you will probably have to force that windows driver to install or redo your OS. (I don't know these tricks)   When doing this, for some reason (which shouldn't have happened, I must have deleted a windows driver) this crashed my system to the point Windows would not start up, even running a windows repair. I had to buy another SSD to install fresh windows, just to re connect my (crashed) Intel SSD back to pull files I did not want to lose on a windows re install. THEN I was able to fresh install windows on the Intel SSD, put all my files back from the PNY SSD.. then disconnect the PNY and add the Samsung 860 Evo and continue testing.  So, fresh windows install on Intel SSD not connected to the internet.. no drivers installed. Connecting the Samsung and trying to get it to work. (Which it did!)   This is when I discovered the only driver or software I installed caused the Samsung issue, Chipset.  It was not anything else but the chipset drivers.   If you use a AMD package or ATI package it will include a Chipset driver . If under '  IDE ATA/ATPI controllers ' you see " AMD SATA controller "... your doomed.  Roll back the driver and windows should install windows drivers.. problem solved.   This will then allow the drive to work faster with Samsung Magician and CrystalBenchMark. This should then work with fresh windows install.       I have spoken to Samsung 1800-SAMSUNG and chose 'Memory'.. and they confirmed that the benchmark scores using windows drivers are lacking by 50 - 100 MB/s.. but the sequential read and write is " about right.. could be better ".   So using windows drivers makes the drive not hang for 27 minutes to do the Samsung Magician benchmark test.. now it takes about 4 minutes. BUT... not exactly what the drive potential could be.    It is my conclusion to not recommend the drive price per performance when it is slightly nerfed by windows drivers .. when the chipset drivers must be uninstalled to USE the Samsung 860 EVO SSD and the 860 PRO ssd (I have tried both) on ANY AMD  990FX/SB950 chipset boards.  I ended up refunding the Samsung 860 EVO 250GB  2.5" Internal Solid State Drive and bought the Samsung 860 PRO 250GB 2.5" Internal Solid State Drive.   I am going to refund the 860 pro.   There is not a reason to pay for the high proformance drive when you are nerfed by the windows drivers on this board. ASUS/ASRock/Gigibite windows 7, windows 10.. all what I have read.. Since 2013 with the 840's to 2018 with the 860's.   WHY has this compatability issue not been corrected? There is no warning on the box, in the stores.. on the website. There is no 'fix' for the issue.   I will NEVER EVER buy a Samsung Solid State Drive again.   I have an Intel SATA II I recently bought a PNY CS9000 SATA III (cheap drive) to test with. (refunded) Both drives worked perfectly fine on the AMD 990FX/SB950 chipset board with the AMD // ASUS chipset drivers. ------------ END OF EDIT -------------   I have an ASUS M5A99FX PRO R2.0 board. Chipset:990FX. I tried Samsung 860 EVO 250GB MLC V-NAND SATA III 6Gb/s 2.5" Internal Solid State Drive Mfr Part #: MZ-76E250B/AM UPC:887276232317   And I tried, Samsung 860 PRO 256GB MLC V-NAND SATA III 6Gb/s 2.5" Internal Solid State Drive Mfr Part #: MZ-76P256BW UPC: 887276247427   I am having the exact same issues as all of you have said.   27 minutes to do 'Performance Benchmark' in Samsung Magician. Sequential : Read 47 Write 492 Random IOPS: Read 34,423 Write 35,400.     CrystalDiskMark 6.0.1 (64)/(32) both hangs/ is very slow to do the test. After @ 30 minutes: CrystalDiskMark 6.0.1 x64 results: -------READ / ------Write Seq Q32T1 414 / 502.0 4KiB Q8T8 34.75 / 68.74 4KiB Q32T1 117.0 / 196.4 4KiB Q1T1 45.67 / 99.68 The scroes above were in the 'grey' ports of the SATA on the Motherboard. 1-4   Another problem is, if you go to samsung.com/us There is NO support for this drive.   Samsung Magician - System Compatability : VID 1002 Under the current system environment, some functions in Magician CANNOT be run. If multiple iterations of Read and Write are performed, RAPID mode may become inactive due to system internal errors on some of the AMD / AsMedia Controller or Driver.  By the way, Samsung memory department "confirmed" the 860 Evo is a 3-bit.. which is TLC. the 860 Pro is 2-bit which is MLC. Therefore, the Evo is not a MLC, it IS a TLC. The Pro is MLC.     ... View more