Intel SSD win7 rating dropped from 7.8 to 5.9?

[Perfectionist]

Alright, no problem just I was talking to Scan Ben about half an hour ago about this stuff and pointed out this thread so thought it might have been from that.

[MadduckUK]

wooooooo

so close

[Crazy Fool]

yeah my system is the one in sig, i dunno why the drives vary, but between 7. 2 and 7.9 is where the intels should be, below that could indicate a bottleneck or an issue, could be down to bios setups or free space on the drive

[Perfectionist]

edit: added quotes

My Asus Rampage II Extreme motherboard apparently uses a JMicron controller, it says about JMicron initialising the SSD everytime it boots up. When I was shopping for SSDs I remember reading bad things about JMicron controller performance, perhaps that's it?

Or would that not affect it only the onboard SSD controller (which is what the problems mentioned refer to) that matters?

Anandtech - 'The SSD Update: Vertex Gets Faster, New Indilinx Drives', 2009/03/30
http://anandtech.com/show/2742/2

OCZ and Indilinx want to slot their drive in between the JMicron garbage and the Intel drive.

http://anandtech.com/show/2742/7

While I’ve heard that the JMicron based drives are no longer selling very well, it looks like at least a few manufacturers are going to be using the JMF602B controllers to deliver 512GB SSDs in the coming months. Buyer beware.

Anandtech - 'The SSD Relapse: Understanding and Choosing the Best SSD', 2009/08/30
http://anandtech.com/show/2829

JMicron is all but gone from the market

http://anandtech.com/show/2829/17

OCZ recently announced the Solid 2, a horrible name (the old Solid was based on a JMicron controller)

http://anandtech.com/show/2829/19

to be fair to Samsung, this isn’t JMicron-terrible performance. It’s just not worth the money performance.

http://anandtech.com/show/2829/21

The JMicron lesson taught us that there's much more to system performance than sequential write performance, and most have learned.

http://anandtech.com/show/2829/27

I remember talking to OCZ about the problems with their JMicron drives and being told that their next-generation drive would have a controller by a new company.

[Champman99]

That refers to the onboard controller on the SSD AFAIK, I too have a JMicron chip on my Asus motherbord, but I think it's only some of the SATA ports anyway, (they have different colours depending which chip their on, red or black I think).

My SSD performance rating slowed down 0.2 just because it had more stuff on it than when I first ran performance info (fewer flash cells to write to?) - which I think is normal, performance still recoverable with format I would expect.

[kalniel]

Or would that not affect it only the onboard SSD controller (which is what the problems mentioned refer to) that matters?

Yes, it's only talking about the jmicron SSD controller. Their motherboard controllers are fine for the job (well, they sometimes have stability issues in some motherboards in my experience, but it's not anything to do with what Anand is talking about there and I happily buy motherboards using them).

It's not a defect or manufacturing issue, just a limited design for that particular job.