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120 MB/S Write Speed on Sata 3 SSD

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Last response: in Storage
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Hello Everyone,

I just got myself a Corsair Pro Performance 128gb SSD and installed it on my computer. I'm having what seems to be slow write speed and I hope someone can figure out what is wrong. Let me tell you step by step what i did.

Installed SSD on Sata 3 slot. Enabled AHCI in Bios and Windows. Windows is running on a separate HDD (Caviar Black Sata 3 on Sata 2 port). Formatted SSD using Disk Manager in Windows. Tried copying a 4gb iso file from HDD to SSD, got around 100-120mb/s speed. I also tried switching to Sata 2 port but made no difference.

Here is my Crystal Disk info
Seq : 391.0 / 233.5
512k: 317.4 / 209.1
4k : 27.38 / 50.01

My computer specs are:

Intel i7 950 2.6 Ghz
Asus x58 Sabertooth Motherboard
Asus Geforce Gtx 570
WD Caviar Black 1 TB Sata 3 6gb/s HDD

Are those numbers normal or is there something wrong with my mobo or ssd?

If i'm missing any vital information please do tell and i'll do my best to answer.

More about : 120 write speed sata ssd

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The numbers are normal. The problem is the Marvell SATA port that is not the real SATAIII, it is all the way SATAII port. It limit the SSD in the high performance, that is why you switch between two of them and made no difference.

If you Google "SSD on Marvell or Intel SATA" then you can see what is going on.

Your 4K numbers are very good compare to the other I add link here:
http://forums.storagereview.com/index.php/topic/29729-i...

http://forum.crucial.com/t5/Solid-State-Drives-SSD/M4-o...

Cin19,

Thank you very much for your reply. I was thinking of switching motherboards before this SSD upgrade too, what sort of motherboard would you suggest if i were to upgrade?
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disp said:
... Tried copying a 4gb iso file from HDD to SSD, got around 100-120mb/s speed...


Copying speed can only fast as the slowest node.

Your HDD is limited factor. Try to copy 4GB data in SSD itself.
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