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Geekman
Asked: 2013-09-05 02:07:50 +0800 CST

Installing Adaptec 5405 RAID card HDD LED

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I'm trying to install an Adaptec 5405 RAID card into an Intel 1RU server, and I need to figure out how to connect the existing SGPIO connector from the backplane, onto the card itself (at least I assume that's how it should work).

Details

The motherboard of the server is an Intel S3420GPLC board. I've already plugged the Adaptec card into the backplane connectors for each HDD, but I'm struggling to figure out how to connect the HDD LEDs up.

I can see the backplane has an SGPIO 4-pin connector which I believe is being used to communicate with the built-in storage controller on the motherboard (which is not needed anymore), as it connects to an SGPIO connector on the board.

From what I've read, the Adaptec 5405 supports for SGPIO and I2C, and has pins for the LED connection on the card. So it should simply be a matter of connecting the SGPIO connector in the correct fashion.

Can someone advise how I should be plugging this cable into the card? I'm worried about damaging the card and/or board if I do it incorrectly.

Some supporting information below.

raid

1 Answers

  1. Best Answer

    Adaptec card supports SGPIO connections through SAS SFF-8087 connectors.

    You cannot use LED connector for connecting to SGPIO on the backplane - first one just blinks directly connected LED's and second one is digital serial interface.

    You need to buy SFF-8087 or similar cable with SGPIO connector, then connect required pins from standard SGPIO connectors to the socket on the Intel backplane.

    This is standard cable:

    enter image description here

    This is intel pinout on board:

    enter image description here

    This is standard pinout:

    enter image description here

    You need to connect clock to clock, load to load, data in to data out (connecting data in to data in and data out to data out won't break anything, it just won't work). It's easy to guess which one is what on the cable, just use tester to find out GND's, but before you'll need proper SFF-8087-aware cable. You must solder it in secure way.

    Note: I use Adaptec cards on my servers, despite SGPIO standard, backplanes and adapters are not always 100% compatible with each-other.

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