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Last Updated On May 06, 2018
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I have a Dell Precision T7500 workstation which comes with an external SATA port. The machine is running Windows 7 with SP 1 (64 bit). I have tried several external hard drives with the eSATA port but most of them don’t work. The OS will see the drive but as soon as I try to access it, the drive will disappear and I will see ATAPI errors in the Windows event log.

I have tried the drives with an E4600 so I know the drives work. I have tried two different esata cables. I have also tried the Intel RST drivers vs the Microsoft standard AHCI 1.0 controller driver.

The drives that don’t work are:

  1.  A LaCie external drive
  2. A Western Digital My Home Drive

Typically the drive is recognized but Windows states it needs formatting. (It is already formatted) or the drive volume mounts but as soon as I try to write to the drive, I get an error.

What does work is a Startech eSATA dock. If I plug that in, the docked drive is recognized straight away and works fine.

Are there any firmware updates that I am missing (BIOS version of the T7500 is A15) or drivers that I should be using? 

solution: You have mentioned you installed Intel RST, however the issue didn’t fix. You have Windows 7 64-bit, under Windows 7 64-bit no chipset drivers are listed on our support site, please try installing “Intel Chipset Software Installation Utility” listed under Windows Vista 64-bit and check if this fixes the problem.

About Product:

The Dell Precision T7500 Workstation is the ideal tower workstation solution for any IT Professional or end user seeking powerful performance and high capacity storage for graphic or data intensive applications like CAD design software. The Precision T7500 is a dual socket workstation equipped with two 64-bit Intel Xeon 5500 or 5600 sequence quad or six core processors, up to 192GB DDR3 1333MHz memory, up to four internal SATA, SAS or Solid State Drives, up to three optical drives, and two x16 PCIe slots with support for a wide array of high performance video cards for CAD, 3D rendering, modeling and other demanding applications. With 11 total USB ports (three internal), one each PCI and PCI-X and three PCIe slots, the Precision T7500 has loads of expandability.

Designed for serious performance, productivity and scalability, the Dell™ Precision™ T7500 is the flagship of the next generation of Dell Precision tower workstations.

The T7500 features the latest generation of Intel®Xeon® quad-core processors, as well as advanced memory, graphics and RAID options. Enjoy blazing-fast, energy-efficient performance even as you tackle the largest data sets and the most complex multithreaded applications.

For even more stunning levels of performance the optional NVIDIA® -Tesla™ C2075 GPU card can be added, creating your own personal supercomputer’ for CUDA-enabled applications.

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