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Trying to understand SSD speed test results I got

I just bought this "Mushkin Enhanced MKNP22SC240GB 240GB PCIe 2.0 x2 MLC Internal Solid State Drive (SSD)" from here:

I installed it in my Dell XPS 8700 tower (here's the screenshot):

And then installed Windows 8 pro on it.

I then ran the Parkdale SSD speed test and got these results:

So as you see, it showed:
Read: 290 MByte/s
Write: 238 MByte/s

When the specs on the NewEgg page said "Up to 825MBps" reads.

So now I'm thinking why are my numbers so low. I installed it into only available slot I had, which is PCI-ex4. Does that have something to do with what I'm seeing?

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Those numbers are under perfect conditions

In reply to: Trying to understand SSD speed test results I got

And maybe some specific SATA controller. Your numbers look good for most SATA controllers.

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In reply to: Those numbers are under perfect conditions

SATA controller? I thought it's a PCI-express card...

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And could be for specific firmware and PCIe slots.

In reply to: Thanks...

Many variables and those numbers are under specific conditions. Ask what machine, firmware and mroe to get the same results.

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In reply to: Trying to understand SSD speed test results I got

I don't know what you have for an OS install pkg.

My Dell machine...not a 8700...has 2 disc.

One disc is the OS the other is the drivers.

If that's your set up......did you install the drivers?

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