AHCI v 1.3 on Classic Mac Pro Possible?

[stmp]

Hi there,

Anyone know if it's possible to force an AHCI driver update to 1.3 on classic Mac Pro towers?

From my understanding AHCI is updated to 1.3 on OS X on all newer iMacs/Mac Mini/Macbook Pro/nMP but somehow being prevented on cMP.

Any input advice here would be great. Hope is to take advantage of the built in port multiplication support in AHCI 1.3.

Thanks in advance!

 

[666sheep]

It's supported on cMP but not on ICH. Only with newer controllers.
Marvell 88SE92xx (Sonnet, Highpoint, Addonics SATA 6Gb/s PCIe adapters) seem to support 1.20 only as well.
See screenshots: first is Samsung NGFF on Lycom DT-120, second is mSATA on Lycom PE-125.

 

[stmp]

Thanks man, you are full of answers for me recently!

One of the confusing elements for me was based on my own eSata PCIe card: http://www.sybausa.com/productInfo.php?iid=1105

This card uses the ASMedia 1061 chipset, which is supported natively by OS X. According to ASMedia, the 1061 supports AHCI Rev 1.3:
http://www.asmedia.com.tw/eng/e_show_products.php?item=118

But looks like only Rev 1.2 is recognized in cMP from my system report (attached).

 

[666sheep]

After a some more research, it seems the answer isn't that straightforward as it appears... Need to study drivers dependencies a bit.

If you want to use port multiplier feature, you can try Sonnett driver. I can't say if it's restricted to their cards only, but maybe it's worth a try: http://www.sonnettech.com/support/downloads/software/dskcd-ahci_pm-11.dmg
Back your original AppleAHCIPort.kext before installing, or install it on a spare drive just in case.

 

[crjackson2134]

Just to add a bit more information, the Velocity Solo X2 only supports 1.19 with Yosemite PB3. I'll check and see what Mavericks uses in a little while.