Question Can I add a SATA 3 Card to an old SATA 2 motherboard ?

ismmostaar1

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May 28, 2018
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I got a new Kingston KC600 SATA 3 SSD to replace an HDD, but little did i know my MOBO is only SATA 2. it's the "H55H-M V1.1" (picture down below) , CrystalDiskMark shows max speed is only 250 m/s, but when i tested the SSD on a laptop it reached 500 m/s, so I was wondering if there's any work around to benefit from the full speed of this SSD on this SATA 2 MOBO, I heard about SATA 3 Cards but I'm not familiar how they work or whether they'd work and where to install it..., any help would be appreciated.

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It's backwards compatible, you won't get the full speed on your SATS SSD off the port but you will be able to use it, regardless.

but when i tested the SSD on a laptop it reached 500 m/s
What is the make and model of your laptop?
yes i know that, i already said that max speed is 250 m/s in desktop that has sata 2, but in laptop that has sata 3 its 500 m/s, i'm asking if adding a sata 3 card to desktop mobo would make it reach the 500 m/s, if yes what cards are supported in this mobo and where to install them.
 
yes i know that, i already said that max speed is 250 m/s in desktop that has sata 2, but in laptop that has sata 3 its 500 m/s, i'm asking if adding a sata 3 card to desktop mobo would make it reach the 500 m/s, if yes what cards are supported in this mobo and where to install them.
No, you will be limited to the speeds of sata 2 still. a quick google search will tell you that the max sata 2 speed is 300MBps, so if you do put a sata 3 card, it will atmost reach 300MBps, but not 500MBps. The laptop was able to reach those speeds because it has sata 3.
I was wondering if there's any work around to benefit from the full speed of this SSD on this SATA 2 MOBO
There is no workaround. its what your board supports you'll get, nothing more.



EDIT : CONTENT REMOVED :|
 
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The could be a slight increase in speeds than using a sata 2 card in a sata 2 board, because if you use a sata 2 card in a sata 2 board, the sata 2 card could be a bottleneck (lets assume the card is giving out lesser than the boards max capability) . So the speeds will be limited to how much the card can put out. But sata 3 card on the sata 2 board will mean the board is whats bottlenecking (as of your case), so the card gives however much the board can take, and there's a lot of headroom, so the speeds would be near 300MBps (more or less somewhere close) -- some out-of-topic info.
What a bunch of nonsense. That's not, how it works.👎
 
You have one way to get faster than 250MB/s, that would be using the PCIe x16 slot and finding, at this point, a very old SATA 3 controller, likely a 4x PCIe card. But you would have to be sure it was a PCIe 1.0/1.1 card, because newer cards expecting PCIe 2.0 or 3.0 will be slowed down to PCIe 1.0 speeds.

So unless you can forgo a GPU, not worth doing.

250MB/s is still leaps ahead of all but the fastest hard drives pulling sequential data.
 
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