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Windows 7: SSD in SCSI mode instead of AHCI using X79 chipset

07 May 2014   #11
lucbujold

W7 ultimate x64
 
 

I know, Essenbe that either HDD can saturate SATA2 but my concern is more the fact that a WD Black which is supposed to be a good performer with compare to a Seagate Barracuda...

And I forgot to mention that the Seagate is splitted in 2 1TB partitions... And what I've just discoverd is that one of the partition have sames readings that the WD... And the other got much faster readings... Even though both partitions have same amount of free space...

Of Pbcopter, I've tried the WD on the Marvell Controller (which is a SATA3) and I got the same results...

Tried to swap the WD and Seagate ports and the results are the same...
So I don't think that the motherboard as an issue, but I will try to find somes benchmarks to compare my drives...

By the way, the SSD will be replaced by Corsair, they suspect something wrong about the firmware...
And for the SSD replacement, what would be the best solution? A new clean install or I can just do a system backup with Macrium?


My System SpecsSystem Spec
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07 May 2014   #12
pbcopter

Windows 7 Ultimate x64 SP1, Windows 8.1 Pro x64, Windows 10 Pro x64
 
 

It is up to you. I typically use a image I take periodically with Acronis but if you don't have much installed a clean install is always good.

If you do a clean install, I recommend that you disconnect the other drives first, to eliminate the possibility of problems.
My System SpecsSystem Spec
07 May 2014   #13
lucbujold

W7 ultimate x64
 
 

OK' I will take note of that...

And is there is a kind of tutorial for SSD optimisation?
My System SpecsSystem Spec
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07 May 2014   #14
lucbujold

W7 ultimate x64
 
 

I've found this: Test Results - UserBenchmark.

iit is my tests and what I've discovered is that my Seagate is in the target...
But my WD is not...
And for the SSD I'm on target...

Do you think that the amount of free space can affect the results?

So I will try to contact WD to check out if there is a issue...
My System SpecsSystem Spec
07 May 2014   #15
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

If it helps here is a HD Tune of a 1TB WD Black I did a while ago connected to a Sata 3 Port and my current 2TB Seagate Barracuda connected to a Sata 2 Port.

SSD in SCSI mode instead of AHCI using X79 chipset-wd-black-seagate.jpg


My System SpecsSystem Spec
08 May 2014   #16
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

I think another thing you will find is it matters which test you run on the drive. Different tests measure differently and use different types of data for their tests. Some drives respond to different tests differently.
My System SpecsSystem Spec
10 May 2014   #17
lucbujold

W7 ultimate x64
 
 

Hi, Essenbe it is a really good luck that you had the same drives than me!!! AND used on the same ports!!!

With HD Tune Pro 5.50,

On the WD I got 96 MB/S

On Seagate I've got just a 5mb/s faster than you.

So there is only two things I see:
First, you and I got a "defective" WD that is not performing as it should.
Second, the WD is performing as designed and it is just not the performer it claims to be...

I've contacted WD to get some light on it...
Stay tuned!

And again, all I have to tell about you guys (and all sevenforum) is that are just the best we can find on the web!
My System SpecsSystem Spec
10 May 2014   #18
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

lucbujold, thanks and it could be possible that both of us have a defective drive, but I seriously doubt it. I no longer have the Western Digital. It was in a PC I built and sold. But it's still running and is about 5 or 6 years old now. Again, the numbers are really about 'ball park' numbers. They will be affected by what processes you have running in the background, many of which you are not even aware of. You will most likely get different numbers if you run it again, but similar. The numbers also vary with which test you use. I believe you would grt quite different numbers if you ran ATTO benchmark test. When I had the drive I ran several tests with different drives I owned at the time. The Samsung Spinpoint 1 TB HD103SJ consistently beat every drive I owned including the WD Black. Sadly, Seagate bought Samsung's Hard drive division and you can no longer bet the Spinpoints, other than the Laptop drives. But again, it depends a lot on what test you run as to the results.
My System SpecsSystem Spec
10 May 2014   #19
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

lucbujold, This is what I mean about which test you run. This is my Samsung 840 Pro 256GB. If you didn't know that and looked at each test, you'd think it was a different drive. It shows how much difference there is in which test you run.

SSD in SCSI mode instead of AHCI using X79 chipset-840-pro.jpg


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 SSD in SCSI mode instead of AHCI using X79 chipset




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