Thanks Jani, Gold info. I have been looking at 2 cheap Mini-PCIe adapters. One uses the JMicron and would you believe it the other is using ASMedia. Now I have a solid reason to choose the second rather than the first. In this case it will NOT be, "Better the devil you know than the devil you don't" and anyway I don't work hard enough to need 6Gb/s :) ATB Aidan On Thu, 13 Jan 2022 at 01:24, Jani Partanen <jiipee@xxxxxxxxxxx> wrote: > > Aidan Walton kirjoitti 13/01/2022 klo 2.03: > > Hi Roger, > > As I mentioned, it is a: > > JMicron Technology Corp. JMB363 > > If my memory is correct. This chip is trash. If I am right, I have same > chip on cheap controller what I bought to get IDE controller mainly, it > also has 2xSATA ports and I had only troubles with that controller in linux. > If I had no drives on SATA ports, dmesg got spammed port errors. If I > had drives installed, they was randomly dropping in and out. Chip itself > was running hot as hell, I mean so hot that you could not keep finger on > chip. I did put some small finns to it and I think it did help little > for drives dropping in and out, but didn't solve it. > If you want a cheap controller, get this chip: > 02:00.0 SATA controller: ASMedia Technology Inc. Device 1166 (rev 02) > > It's been quite stable for me and didn't cost much. Only issue I have > that I cannot force it's ports transfer speed to example 3.0G. Spinnin > rust do not need 6.0G speed what in my experience increase chance for > dropouts if you cables aren't 6.0G ready and how do you tell if they are > when cable doesn't have any mention about it? > I think it's something to do that it's PMP card and I don't understand > how you have to format kernel parameter when you have PMP situation. I > can tune internal controller all ports just fine, but not this expansion > card. Kernel tell you it's forcing them to 3.0G, but when you check > later what transfer speed is, it's still 6.0G > >
