i have also problems with all Marvell ports
88SE6145 not solved at his time : port multiplier with time out , unusable
MRU incompatibility with 88SE6145 and in same time 88SE91xx ( BSOD )
88SE9128 not use RAID 5 or 10 , only 2 RAID 0 or 1
however Marvell doc indicate this modes OK
and i am sure because HighPoint use this component 88SE9128 with this options available
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I think that Marvell is a good company , provide components and tools to the map productions
with a simple developpement kit and some simple exemples
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HighPoint use this for make a good BIOS / WEB Raid Management with the same developpement tool
RR622 HighPoint card is very similar , use same chip , eeprom serial , xtal and buffer amplifier and nothing different
the others company are bad because use only the base tools and develope nothing, are satisfied to recopy that they found in the basic tools of Marvell !!
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that is my opinion but this is sure because HighPoint make good products with same components , why not the others company ?
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Pierre