One Stop Systems
ExpressBox 2200 | 3 Software Installation
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3.2.4 How to Check PCIe cards - Mac OS X
Your first step will vary depending on which version of Mac OS X you are using:
Mac OS X 10.6.8 Snow Leopard or earlier:
OS X Lion 10.7 or later:
Click PCI cards
The picture below shows three PCIe card cards being recognized / detected. One card is displaying “YES” for “ Driver Installed” and two
cards are displaying “NO” for “Driver Installed”
NOTE
If your PCIe cards are not being detected or recognized, you need to check the LED indicators on both interface cards and
see if it is displaying the correct LED status. A normal LED status should display a full x8 link, and 5 solid green, this
signifies that your host computer is linked to your expansion chassis at full bandwidth.
If you are seeing three solid green LEDs and one amber LED, shutdown the host computer and the expansion chassis,
reseat the host card, expansion card and cable., then reboot. This should fix the problem. If not move the OSS Host
interface card to another PCIe slot
If your PCIe cards are still not detected, try another known good card. If this works, it means the problem is with the card. If swapping the
PCIe card still exhibiting the same issue, you may have a OSS expansion related problem or the computer is a having issue (i.e. Motherboard).
