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Server Products
SATA Drives Appear to be Non-Functioning


Some Serial ATA (SATA) drives can appear to be non-functioning, i.e., drives do not spin up if jumpers PM2 (Power Management) and SSC (Spread Spectrum Clocking) are enabled.

SATA hard drives do not appear in available drive list or cannot be marked online.


PM2 allows the drives to start up in a sleep state and they need a special signal to actually spin.

SSC alters signaling frequency between the drive and controller to reduce EMI.

If these settings are enabled and the drives do not spin up, the hard drives cannot be marked on-line or available. They may appear in a list of hard drives in the controller BIOS but cannot be used by the controller.

Early versions of Intel® RAID controller firmware did not support Power Management and Spread Spectrum Clocking.


There are two possible solutions for this issue.

  • Disable PM2 and SSC features on the SATA hard drive. Some drive manufacturers have drive jumpers to enable/disable these settings. Some drive manufacturers utilize a software utility to enable/disable one or both of these settings.

    Please refer to the hard drive manufacturer's documentation for details on disabling these features on your SATA hard drives.

  • Update your RAID controller to the latest revisions of firmware. Intel® RAID controller firmware can be found from the specific controller home page and selecting Software & Downloads.

This applies to:

Intel® Entry Server Board SE7210TP1-E
Intel® Entry Server Board SE7221BK1-E
Intel® Entry Server System SR1325TP1-E
Intel® Entry Server System SR1425BK1-E
Intel® RAID Controller SRCS16
Intel® RAID Controller SRCS28X
Intel® RAID Controller SRCSAS144E
Intel® RAID Controller SRCSAS18E
Intel® Server Board S3000AH
Intel® Server Board S3000PT
Intel® Server Board SE7320EP2
Intel® Server Board SE7320SP2
Intel® Server Board SE7320VP2
Intel® Server Board SE7505VB2
Intel® Server Board SE7520AF2
Intel® Server Board SE7520BD2
Intel® Server Board SE7520JR2
Intel® Server Board SE7525GP2
Intel® Server Board SE7525RP2
Intel® Server System SC5300AF2
Intel® Server System SC5300BD2
Intel® Server System SR1435VP2

Solution ID: CS-021230
Last Modified: 04-Dec-2014
Date Created: 31-Jul-2005
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