Intel 510 SSD Seen as 3Gbs Drive

[idata]

I just built a system on an Asus P8Z68 Deluxe motherboard that includes two Intel 510 256Gb drives. One is drive C and the other is drive D on ports 0 and 1 respectively of the Intel controller. I am not using the Marvell controller. I was dissapointed in the Primary Drive WEI score so I opened the Intel RST Management panel and noticed the C drive is reporting a SATA Transfer Rate of 3Gbs while the D drive is reporting a 6Gbs transfer rate. The only difference between the two drives is the C drive is running the PWG2 firmware while the other one is running the PWG4 firmware. Does anyone have any thoughts on what may be holding this drive back?

[idata]

I called Intel back today and got through to the more helpful guy in order to give him your case ID. This person, Mario, is the team leader for telephone support and apparently the case has already been escalated above him as he had promised. I was also pleased that he had read this thread and already obtained your case ID from there. I pointed out that since yesterday quite a few more people had joined the thread with similar issues and that maybe it was more widespread than we had thought and certainly more of a problem than Intel had considered it to be.

I think it would be a good idea for everyone with this problem to open their own cases with Intel and report their case IDs here. That way we can get Intel to take it more seriously.

[idata]

Thanks for the update. The person I spoke with earlier in the week said I should hear back from Intel within 24 to 48 hours which will mean later today. If I don't hear from them I'll call back and I will post anything I learn in this thread.

To Mario ... GO MARIO!!! Thanks for anything you can do to help.

[idata]

I downloaded IRST 10.6.0.1022 and after installation, the IRST GUI identifies itself as 10.6.0.1002, which may be a sub-version for P67 board rather than Z68, etc.

I noticed a post on another forum that OCZ claimed an IRST driver had a problem with SATA 6Gb/s SSDs. I thought this might be significant to this thread, so checked into it. But it turns out they claim IRST 10.5 is the problem, and that 10.6 works fine. Which of course is no help here. Just FYI.

[idata]

I did not hear from Intel today so I called them and didn't really get much information. They have escalated my issue and are going to try to replicate it in the lab. That's probably all I will hear until next week.

[idata]

There is another thread in the SSD forum that was discussing this issue, and the fix seems to be enabling Hot Plugging in the BIOS on the drives in question. That disables LPM (Link Power Management) which seems to be the cause of the problem.