Solid State Drives (SSD)

[shtsh00ttr]

Thanks to a bright fellow on another forum he saved me after 20 Hours of screweing around with this combo.

i7 980x @4.5Ghz (water cooled)
12 GB Dominator 1600
2 x Crucial 128GB
2 x OCZ Vertex 128GB
RocketRaid 640 (tried in every open slot)
2 x 5970 CFX water cooled
Rampage III Extreme w/ EK Full coverage Block
Enermax 1250W PSU

I was getting a MAX 380MB/s in every benchmark.

Why? Well The HighPoint RocketRaid (at least in my docs and searches) fails to mention that you need to plug into ALTERNATING ports on the card. I had them both plugged into one side of the RR640.

If you use this card , do yourself a favor Alternating ports on the card and disable the onboard Marvell controller on your mobo if it has one

Im cruising at 700MB/s now

[lsdmeasasp]

Glad I could help ya out, nice to see all is well now!

[_jb]

Good tip!

I'll bet everyone would naturally plug the two connectors in right next to each other...  they should have something in the docs on that...

-jb

[lsdmeasasp]

Ya they should, they also need to update the BIOS and drivers (Stil initial release).  And they VERY MUCH Need to release a proper PLX Bridge chip driver (Base System Device for those who have one and are looking for the driver)

[Sevarin]

If I have 2 and 2 drives, do I still need to use alternate ports with the RocketRAID 640?

[lsdmeasasp]

You mean 4 SSD's and one controller?   If so I don't think it will matter, I believe this will cause the controller to act the same as the onboards and or what you saw previously - due to the 9128 chips not being able to handle 2 drives per chip.

I am not sure though, this is just speculation based on single 9128 chip use with two drives.   If that is what you meant, and you do test please let me know what you find out.

When I originally said alternate ports, I meant one drive on port 1, and the other on 3 or 4 as it wouldn't matter as 3-4 are both through one chip.   If you use all 4 ports I think it would be the same as using 1+2 or 3+4 and it wouldn't be able to keep up.  

Like I said though, just a  guess, let me know if you test this as I only have 2 SSD's so I can't test it out

[shtsh00ttr]

It will not run at full speed when all ports are populated.

2 x C300 128 on ports 1 & 3

2 x Vertex 2 128 on ports 2& 4

Speed capped at ~380MB/s across the board. All combinations of ports and drives resulted in same issue. I am thinking the fact that the PLX chip isnt recognized in Windows kills the additional needed PCIe lanes.

[lordgllynn]

Does your system have VT on it and is it enabled?

[lsdmeasasp]

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shtsh00ttr wrote:

It will not run at full speed when all ports are populated.

2 x C300 128 on ports 1 & 3

2 x Vertex 2 128 on ports 2& 4

Speed capped at ~380MB/s across the board. All combinations of ports and drives resulted in same issue. I am thinking the fact that the PLX chip isnt recognized in Windows kills the additional needed PCIe lanes.

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Ya, that or the controllers can handle it?   I know someone who found this driver, one of our reviewers at Tweaktown, I'm trying to get him to dig up the driver for me again.    Thanks for the reminder, I'll shoot him another email.

[surforguy]

Hi Isdmeasasp,

Can you point me to the PLX Bridge chip driver?  I have the unknown "base system device". 

Thank you so much

-Chris