Crystaldiskinfo SATA150 / SATA 600, but my motherboard sould support SATA 300

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invertedzero

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Jun 12, 2012
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All of my drives seem to operate in SATA 150 (when they're SATA 600 capable) but I believe they should be operating at SATA 300, as the motherboard supports this. Tests for read seem to hover around 100MB/s why is this?
 
Solution
drtweak
Yea a 740 Only has SATA II.

The thing is even for SATA I most hard drives won't even max that out either. The real reason behind SATA III is mainly for SSD's which with SATA Express and PCIe Based SATA I think SATA for SSD Storage is going to be a thing of the past in the next 5 years.

The SSD is running at SATA II (The first one is what it runs it the second is what it is rated for.

They should all be SATA II Ports as well. what are the hard drives?

Also try switching the SSD and the HDD SATA ports and re-check Crystal Disk. See if they are still the same values or if they have swapped?
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invertedzero

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Jun 12, 2012
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I have 3 HDDS and an SSD. One HDD has --- i.e no transfer mode speed recorded. The SSD is @ SATA300 / SATA 600. The other two hard drives report as SATA150 / SATA 600.

I am beginning to think two ports are SATA II and the other two are SATA I. Is this possible / likely? Would I encounter many problems switching them around?
 
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invertedzero

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Jun 12, 2012
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An update: I've checked inside the machine and it doesn't seem obvious that any are faster sata ports just by the arrangement of the ports the drives are plugged into. And at one point the SSD said SATA 300 / SATA 600 but now it's back to SATA 150/SATA 600. I don't understand it
 
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drtweak

drtweak

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Sep 17, 2012
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Yea a 740 Only has SATA II.

The thing is even for SATA I most hard drives won't even max that out either. The real reason behind SATA III is mainly for SSD's which with SATA Express and PCIe Based SATA I think SATA for SSD Storage is going to be a thing of the past in the next 5 years.

The SSD is running at SATA II (The first one is what it runs it the second is what it is rated for.

They should all be SATA II Ports as well. what are the hard drives?

Also try switching the SSD and the HDD SATA ports and re-check Crystal Disk. See if they are still the same values or if they have swapped?
 
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Solution
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invertedzero

Honorable
Jun 12, 2012
23
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10,510


I only saw SATA 300 once for the SSD, and i've switched the cables/ports, and even tried unplugging a drive but they're still bounded by the 100MB/s mark. I mean of course, it's not bad but it's just bugging me when in theory at least my machine should be operating SATA II specs
 
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drtweak

drtweak

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Sep 17, 2012
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Well SATA I Actual Speeds aren't must fast. SATA I is 150MB/s max. most disk hard drives don't go much faster than 100 or so and that's usually in a perfect work.

But that is still weird what it is doing though. Have you tried them in another PC?
 
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