Xserve RAID Card: Identification and compatibility
Summary
Learn how to identify the Xserve RAID Card (Early 2009) to distinguish it from the original Xserve RAID Card and determine which card is compatible with which model of Xserve.
Products Affected
Xserve (Late 2006), RAID Card, Xserve (Early 2008), Xserve (Early 2009)
You can install and use the Xserve RAID Card (Early 2009) only in the Xserve (Early 2009) with Mac OS X Server v10.5.6 or later.
Install and use the original Xserve RAID Card—introduced in August 2007—in the Xserve (Late 2006) and Xserve (Early 2008) with Mac OS X Server v10.4.10 or later.
The two cards are similar in appearance. To distinguish between them, refer to the part number or the EEE code at the end of the serial number on the label indicated by the arrow in the image below.
Xserve RAID Card (Early 2009): 661-5094 EEE: 2QD
Xserve RAID Card (Original): 661-4314 EEE: 0XK

You can also identify the Xserve RAID Card (Early 2009) by the presence of two additional chips (not shown) in the area indicated by the circle in the image above.