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Hi all, I' trying to get my Digitus 30104 4-Port SATA II PCI-E card running under Lion 10.7.2 First of all, here's some info on the card: http://www.digitus.info/en/products/access...-port-ds-30104/ It uses a Marvell 88SX7042 chip. There is no OSX support. The card appears to be identical to these cards according to specs and images: Rosewill RC-218 Rosewill.com - Networking, HDD Controllers, SATA 3G HDD Controller, RC-218 Startech PEXSATA24E http://eu.startech.com/Cards-Adapters/HDD-...PCIe~PEXSATA24E I found two drivers for OSX that come with cards that use the same chip: sonnet tempo sata e4i Sonnet - Tempo E4i: 4-Port Serial ATA PCI Express Card; Compatible In Power Mac G5 & Windows Desktop Computers With PCI Express Slots This card looks very similar (but misses the 2 eSATA ports and the jumpers to activate them). Furthermore, some review on Newegg mentions, that a Rosewill RC-218 (see above) is detected in Windows 7 as this card. HighPoint RocketRaid HighPoint Technologies, Inc -Mac Support They have some cards of the 23xx series, which use a 88SX7042 and have native support in Lion (HighPointRR.kext). However, none of them looks similar. I followed this guide on kext editing: http://wiki.osx86project.org/wiki/index.ph...t_Patching_List I figured out the PNPID is 0x704211AB First attempt: Modifying HighPointRR.kext See attachment for resulting kext. With the PNPID, the card is detected. Unfortunately, connected SATA hard drives are not detected. I didn't find any errors in the system log files. Second attempt: Modifying SonnetSATA.kext I extracted the SonnetSATA.kext from the driver packet that came from the official website. http://www.sonnettech.com/support/kb/kb.ph...amp;action=b384 Apart from injecting the PNPID, I removed the secondary device match stuff from the info.plist. See attachment for resulting kext. This version detects the card and connected hard drives. The log says: kernel: SonnetSATA::init 2.2.6, © 2004-2010 Sonnet Technologies, Inc. kernel: SonnetSATA::detectDeviceType@0: Marvell 88SX7042 detected Disk Drive ST2000DL003-9VT166 CC32 6YD0GV3L However, the problem is that the drives appear as "not initialized". (I tested with a drive GUID and a single HFS+ partition with data and a drive with GUID and a single NTFS partition, which worked fine under Windows 7) When I use DiskUtil, to initialize and partition the drive (GUID and single HFS+ partition), it gets stuck at "waiting for volumes to be displayed" (or similar - it's a rough translation from the German UI) No errors are reported. I also verified that the card is working fine under Windows 7 with the current driver provided by SonnetTech. So where's the problem in Lion? I also tried earlier driver version (2.2.1 is the 1st that supports Lion) but all with the same result. At this point I a stuck. I got the feeling, I am really close. It's probably only some minor tweak of the settings - but I have no idea where and what to change. Any suggestions are welcome. Perhaps some of you owns one of these cards and could try him/herself. cheers, xiv P.S. Attachments did't work. You can download the files here: Dropbox - kext - Simplify your life