I own two internal SATA1 drives. HDtach shows them as running about 125mbps. I bought a PCI-Express SATAII card from newegg (Syba SIL 3132 chip) and attached a WD 16MB cache, 3.0gbps SATAII drive and run HDTach again. The SATAII drive is running at 120mbps. What gives? Do I inevitability to add a drive and create a stripe mirror to capture faster speeds?
My SATAII is Slower Than my SATA1!!?
The SATA I and SATA II specs you see like 150MB/s and 300MB/s are thoughtful bus speeds (from plug to plug)
The drives can't actually max them out on the other hand.
So SATA II is not really twice as fast. In this benchmark, it be 10% faster.
http://www.cdrinfo.com/sections/reviews/...
With some drives, it may be slower.
You could try swapping cords and where they are plugged within (some controllers are better than others), drivers, etc
I would recommend updating the drivers to both your Chipset and your PCI-Express SataII card. Also, can you verify if the 120mbps is sustained or is it burst (the highest it reached) and compare to your SataI drive.
Maybe surrounded by terms of burst it is "slower" but surrounded by sustained speed it could be faster. This would be more important.
I totally agree !!!
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