Samsung 850 Evo SATA Interface Problem

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talatcemrecan

Prominent
Dec 16, 2017
2
0
510
Hi,

I am using old laptop but it's supporting Sata 6.0 GB/S.

I had just one port for Sata. I cancelled the dvd-rom and i made another port for use my old HDD and SSD at the same time.

So there 2 ports. I realize that when i checked them, they are working with Sata 3.0 GB/S.

Are they sharing Sata 6.0 GB/S? Can it be possible? How my ssd can work with 6.0 GB/S?

Here is the my system summary Aida64 output: https://files.fm/f/gqccbvvf

sata.png
 
Solution
jr9
From what I'm seeing, it seems as though you are only getting half the speed you should and the board has your 2 SATA3 slots sharing bandwidth and the system is running both drives in SATA 2 mode instead of SATA 3. Is there any way you can unplug the drive that doesn't have your OS on it and see if it goes back to SATA 3 mode?

Since your PC only had a 5400RPM drive and a DVDROM, it makes sense to share the bandwidth between the 2 ports as SATA2 speeds would not hurt you as much with lower speed devices. Lower end motherboards do this, higher end server motherboards can have 6GBps on every SATA3 port.

Updating all your Intel drivers (chipset, etc) may help. Try Intel® Driver & Support Assistant.
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jr9

jr9

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Dec 6, 2017
2,212
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3,960
Try removing the SSD and seeing if it goes up to 6GBps. They could be sharing the same controller and therefor bandwidth. The EVO reads and writes at around 500MBps so I don't think you'd be bumping your head on the 3GBps limit, although you could do a benchmark to confirm you are getting that performance.
 
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T

talatcemrecan

Prominent
Dec 16, 2017
2
0
510


I did benchmark test and result was arround 280-250 write and read speed.

 
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jr9

jr9

Estimable
Dec 6, 2017
2,212
3
3,960
From what I'm seeing, it seems as though you are only getting half the speed you should and the board has your 2 SATA3 slots sharing bandwidth and the system is running both drives in SATA 2 mode instead of SATA 3. Is there any way you can unplug the drive that doesn't have your OS on it and see if it goes back to SATA 3 mode?

Since your PC only had a 5400RPM drive and a DVDROM, it makes sense to share the bandwidth between the 2 ports as SATA2 speeds would not hurt you as much with lower speed devices. Lower end motherboards do this, higher end server motherboards can have 6GBps on every SATA3 port.

Updating all your Intel drivers (chipset, etc) may help. Try Intel® Driver & Support Assistant.
 
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