Avago Technologies AcceleRAID 170LP - Manual (Page 45)

Controller Start-up
Manual No. DB11-000024-00 3-5
In Case of Problems
If problems are encountered during start-up, check the following:
• Check SCSI cabling for loose connections, pin mismatches (make sure
pin 1 on the cable matches pin 1 on the connector), bent pins, and
damaged or crossed cables.
• Check cable length; this includes internal bus lengths in enclosures.
• Check termination.
• Check SCSI IDs on all drives.
• Check to see if any of the LED lights on the AcceleRAID 170LP
controller are on.
If the motherboard is PCI 2.2 compliant then at least one of these LED
lights will be on: D1, D2, D3, D4.