Samsung 840 EVO SSD low benchmark

[click44]

I just finished my first build this week. I am booting off of a Samsung 840 Evo 250GB SSD. With this SSD comes the Samsung Magician software. In Magician, I have set the OS optimization settings to "Maximum Performance". Also, Magician confirms that I am in AHCI mode and that my SATA interface is SATA III 6 Gb/s. Also, I've checked my BIOS settings and the drive is set to AHCI mode.

The problem is, the results from the magician benchmark test are terrible.

Sequential Read: 310 Mb/s
Sequential Write: 377 Mb/s
Random Read: 60976 IOPS
Random Write: 53687 IOPS

I have searched the Internet to the best of my ability, but I can't figure out what the problem is. I've even tried switching SATA cables and SATA mobo ports. Any help at all would be very much appreciated. It sucks when you spend all this money on a computer, and it doesn't work like you expect.

Other Computer Info:

Mobo: Askrock z97 Extreme 4
OS: Windows 8.1
RAM: 8GB Gskill Ripjaws
CPU: Intel i5 4690k

 

[techgeek]

I just finished my first build this week. I am booting off of a Samsung 840 Evo 250GB SSD. With this SSD comes the Samsung Magician software. In Magician, I have set the OS optimization settings to "Maximum Performance". Also, Magician confirms that I am in AHCI mode and that my SATA interface is SATA III 6 Gb/s. Also, I've checked my BIOS settings and the drive is set to AHCI mode.

The problem is, the results from the magician benchmark test are terrible.

Sequential Read: 310 Mb/s
Sequential Write: 377 Mb/s
Random Read: 60976 IOPS
Random Write: 53687 IOPS

I have searched the Internet to the best of my ability, but I can't figure out what the problem is. I've even tried switching SATA cables and SATA mobo ports. Any help at all would be very much appreciated. It sucks when you spend all this money on a computer, and it doesn't work like you expect.

Other Computer Info:

Mobo: Askrock z97 Extreme 4
OS: Windows 8.1
RAM: 8GB Gskill Ripjaws
CPU: Intel i5 4690k

Are you plugged into a native SATA port or a third party port?

The Intel ports will perform much better than any third party port.

Also is this a new drive or have you used it on a previous system?

 

[click44]

I just finished my first build this week. I am booting off of a Samsung 840 Evo 250GB SSD. With this SSD comes the Samsung Magician software. In Magician, I have set the OS optimization settings to "Maximum Performance". Also, Magician confirms that I am in AHCI mode and that my SATA interface is SATA III 6 Gb/s. Also, I've checked my BIOS settings and the drive is set to AHCI mode.

The problem is, the results from the magician benchmark test are terrible.

Sequential Read: 310 Mb/s
Sequential Write: 377 Mb/s
Random Read: 60976 IOPS
Random Write: 53687 IOPS

I have searched the Internet to the best of my ability, but I can't figure out what the problem is. I've even tried switching SATA cables and SATA mobo ports. Any help at all would be very much appreciated. It sucks when you spend all this money on a computer, and it doesn't work like you expect.

Other Computer Info:

Mobo: Askrock z97 Extreme 4
OS: Windows 8.1
RAM: 8GB Gskill Ripjaws
CPU: Intel i5 4690k

Are you plugged into a native SATA port or a third party port?

The Intel ports will perform much better than any third party port.

Also is this a new drive or have you used it on a previous system?

Oh, man. Now I'm embarrassed. I saw that solution in a different thread, so I checked my Asrock manual. The manual makes no distinction between the SATA ports. Also, there was no indication on the Mobo itself that the ports were different. So, I figured they were all intel ports.

After your reply, I decided to research further, and of course 3 threads in, I found out the only two ports I've tried with this SSD are the only 3rd party ports on the board. So now I have it plugged into the proper port and my benchmarks are much higher.

Thanks for your help.

 

[techgeek]

No problem, glad I could help.

What amazes me is you got it to boot with the third party controller. Most times when the boot drive is put on a third party controller it won't boot Windows.

 

[kahoona]

Hi
I had the same problem. I have an EVO 840 250g ssd. I have 2 sata controllers, Marvell and Intell matrix. I have been told (here) that I should put my 3 storage hard drives on one and my SSD boot drive on the other. It boots fast either way. There is another problem though. When I go to a site such as Neatorama or Craigslist my browser slows and freezes for as much as several minutes. There are other slowdowns in other areas also. This started after about a month in use. Check this link-
http://www.overclock.net/t/1507897/samsung-840-evo-read-speed-drops-on-old-written-data-in-the-drive/350
There is a lot more available if you search. Samsung has recently admitted that this is a problem and will issue new firmware on August 15. They feel that this will fix it. You can get it through your Magician software on that date.
I bought a Crucial 550 SSD as a replacement since I have to have my PC working to earn a living.
Hope this helps

 

[Palorim12]

Hi
I had the same problem. I have an EVO 850 250g ssd. I have 2 sata controllers, Marvell and Intell matrix. I have been told (here) that I should put my 3 storage hard drives on one and my SSD boot drive on the other. It boots fast either way. There is another problem though. When I go to a site such as Neatorama or Craigslist my browser slows and freezes for as much as several minutes. There are other slowdowns in other areas also. This started after about a month in use. Check this link-
http://www.overclock.net/t/1507897/samsung-840-evo-read-speed-drops-on-old-written-data-in-the-drive/350
There is a lot more available if you search. Samsung has recently admitted that this is a problem and will issue new firmware on August 15. They feel that this will fix it. You can get it through your Magician software on that date.
I bought a Crucial 550 SSD as a replacement since I have to have my PC working to earn a living.
Hope this helps

Your thing has nothing to do with this post. He was plugged into the Secondary controller, upon plugging into the primary Intel controller, he got the speeds he was wanting.

 

[jay_emm]

I just finished my first build this week. I am booting off of a Samsung 840 Evo 250GB SSD. With this SSD comes the Samsung Magician software. In Magician, I have set the OS optimization settings to "Maximum Performance". Also, Magician confirms that I am in AHCI mode and that my SATA interface is SATA III 6 Gb/s. Also, I've checked my BIOS settings and the drive is set to AHCI mode.

The problem is, the results from the magician benchmark test are terrible.

Sequential Read: 310 Mb/s
Sequential Write: 377 Mb/s
Random Read: 60976 IOPS
Random Write: 53687 IOPS

I have searched the Internet to the best of my ability, but I can't figure out what the problem is. I've even tried switching SATA cables and SATA mobo ports. Any help at all would be very much appreciated. It sucks when you spend all this money on a computer, and it doesn't work like you expect.

Other Computer Info:

Mobo: Askrock z97 Extreme 4
OS: Windows 8.1
RAM: 8GB Gskill Ripjaws
CPU: Intel i5 4690k

Hi, I am doing an article review for a class which addresses the problem. It said that the problem is with data older than a month that is in its original state. Samsung said the "flash management algorithm" is incorrect and there is a firmware update and installation guide that should remedy it. Some users are concerned that the update only moves the data, which apparently fixes the problem, and the algorithm still needs corrected. I thought perhaps another update is forthcoming. Regardless, Samsung's website has a download that is probably the update, that this article said fixes it, although moving around data might not be the best solution. The article is on 'computerworld.com,' or search "samsung-delivers-fix-for-SSD."

 

[Brian_09]

I just finished my first build this week. I am booting off of a Samsung 840 Evo 250GB SSD. With this SSD comes the Samsung Magician software. In Magician, I have set the OS optimization settings to "Maximum Performance". Also, Magician confirms that I am in AHCI mode and that my SATA interface is SATA III 6 Gb/s. Also, I've checked my BIOS settings and the drive is set to AHCI mode.

The problem is, the results from the magician benchmark test are terrible.

Sequential Read: 310 Mb/s
Sequential Write: 377 Mb/s
Random Read: 60976 IOPS
Random Write: 53687 IOPS

I have searched the Internet to the best of my ability, but I can't figure out what the problem is. I've even tried switching SATA cables and SATA mobo ports. Any help at all would be very much appreciated. It sucks when you spend all this money on a computer, and it doesn't work like you expect.

Other Computer Info:

Mobo: Askrock z97 Extreme 4
OS: Windows 8.1
RAM: 8GB Gskill Ripjaws
CPU: Intel i5 4690k

Hi, I am doing an article review for a class which addresses the problem. It said that the problem is with data older than a month that is in its original state. Samsung said the "flash management algorithm" is incorrect and there is a firmware update and installation guide that should remedy it. Some users are concerned that the update only moves the data, which apparently fixes the problem, and the algorithm still needs corrected. I thought perhaps another update is forthcoming. Regardless, Samsung's website has a download that is probably the update, that this article said fixes it, although moving around data might not be the best solution. The article is on 'computerworld.com,' or search "samsung-delivers-fix-for-SSD."

 

[Brian_09]

Yes Palorim12 would be correct he was using a SATA II port instead of SATA III port cutting bandwidth. I was just wondering if anybody new of a new Alienware 14 with a Samsung 840 EVO 500GB like mine. I'm wondering if my bench scores are correct for a single drive.

Samsung Benchmark - sequential read 5092mb/s sequential write 3770mb/s
RAPID ENABLED - random read 142109iops random write 80322iops
Maximum Performance Enabled


ASS SSD Benchmark - seq. read 3622.15mb/s seq. write 494.92mb/s
RAPID ENABLED 4k read 95.21mb/s 4k write 240.24mb/s
Maximum Performance 4k-64Thrd read 5306.20mb/s 4k-64Thrd write 4025.88mb/s
Enabled Acc. Time read --error-- Acc. Time write 0.024ms
Read Score 5764 Write Score 4316
Total Score = 12852

Any thoughts as to why I have massive scores with a single drive? I was thinking burst rate or something because running consecutive tests they seem to still be high but they are everywhere, I have even seen 4k-64Thrd read jump to over 14000mb/s but only briefly. I just want all to be as perfect as possible in my lappy rig. Also Acc. Time on read errors out with "Could not open device:\\.\PHYSICAL DRIVE 0" error.

 

[Palorim12]

Yes Palorim12 would be correct he was using a SATA II port instead of SATA III port cutting bandwidth. I was just wondering if anybody new of a new Alienware 14 with a Samsung 840 EVO 500GB like mine. I'm wondering if my bench scores are correct for a single drive.

Samsung Benchmark - sequential read 5092mb/s sequential write 3770mb/s
RAPID ENABLED - random read 142109iops random write 80322iops
Maximum Performance Enabled


ASS SSD Benchmark - seq. read 3622.15mb/s seq. write 494.92mb/s
RAPID ENABLED 4k read 95.21mb/s 4k write 240.24mb/s
Maximum Performance 4k-64Thrd read 5306.20mb/s 4k-64Thrd write 4025.88mb/s
Enabled Acc. Time read --error-- Acc. Time write 0.024ms
Read Score 5764 Write Score 4316
Total Score = 12852

Any thoughts as to why I have massive scores with a single drive? I was thinking burst rate or something because running consecutive tests they seem to still be high but they are everywhere, I have even seen 4k-64Thrd read jump to over 14000mb/s but only briefly. I just want all to be as perfect as possible in my lappy rig. Also Acc. Time on read errors out with "Could not open device:\\.\PHYSICAL DRIVE 0" error.

Its because RAPID mode is enabled....If you disable RAPID mode, you'll see regular SSD numbers.

 

[OtmShank]

Hey man, would you be able to specify which ports are 3rd party and which are Intel? I'm having the same problem.