File Name: tempo-x_sata_4+4_qsg.pdf Document Version: QS-TSATA-X44-E-B-011405 File Size: 1.2 MB Installation instructions for installing the Sonnet Tempo-X SATA 4+4 8-Port Serial ATA PCI-X Host Adapter Card into a supported Mac omputer.
Our testing has shown that a four-drive array will sustain maximum reads and writes of about 200 MB/second in a 64bit, 33MHz PCI slot. An eight-drive array will not provide any additional performance beyond that of a four-drive array in that slot. To get significantly more performance, you need to use a machine with a PCI-X slot.
This does not happen often, but sometimes the driver caches do not get purged and the new SATA driver does not get loaded correctly from ROM.
Try this:
1) Delete and empty trash for the following file and two directories:
/System/Library/Extensions.mkext (a file)
/System/Library/Caches/com.apple.kernelcaches (a directory)
/System/Library/Caches/com.apple.romextensions (a directory)
