A 5040 requires F6 Drivers.   Advanced Format Requires AHCI F6 drivers.

https://downloadcenter.intel.com/download/25165/

 If you are installing the operating system on a system
    configured for RAID or AHCI mode, you may pre-install
    the Intel(R) Rapid Storage Technology driver using the
    "F6" installation method

 Pre-Installation Using the "Load Driver" Method.

1.  Extract all driver files from the zip archive.

2.  Select a USB key media and copy the following extracted files:
    iaAHCIC.inf, iaAHCIC.cat,
    iaStorAC.inf, iaStorAC.cat,
    iaStorA.sys, and
    iaStorF.sys


3.  For Microsoft Windows OS*:

    - During the operating system installation, after selecting the
     location to install Windows, click 'Load Driver' to
     install a third party SCSI or RAID driver.

    - Continue to step 4.

4.  When prompted, insert the USB media and press Enter.

5.  Follow the prompts and browse to the location of the installation
    files.  Select the appropriate .inf file (64 or 32 bit).  If a
    supported controller is detected there will be no error message.
    Follow the prompts to continue and complete the OS installation.

Thanks SpeedStep, but my problem is not with installing Windows (which we do via WDS where the Install Image already includes the Intel (R) RST drivers) but with booting to the PAT Universal Recovery CD *after* imaging to resolve any partition alignment issues. The CD boots to a PAT screen briefly, then hangs on a black screen saying  "Ancient bootloader. Probing EDD ( edd=off to disable )". I'm looking for some understanding of what that message means and what I can do to get beyond it. Does that make sense?

A bootable ISO that doesnt have INTEL RST Drivers will not see ANY Hard  drives in newer and newer systems.  Thats why windows PE went from 1.0 to 2.0 to 3.0 and up.  Its also why there are specific procedures to install windows that changes from 7 to 8 to 10.

There is support for your issue from DELL and Microsoft but it is not free.

 Windows 7 doesnt come with INTEL RST but rather has INTEL MATRIX STORAGE MANAGER 8.9

Advanced FORMAT drives aka drives larger than 80 gigs REQUIRES INTEL RST 9.6 and higher which is why there are F6 drivers.

In the case of the 5040 this would be version 14.8.0.1042 or higher

https://downloadcenter.intel.com/download/25165/

Other Versions

 WINDOWS PE Versions

Version Description
1.0 The first release of Windows Preinstallation Environment
1.1 Built from Windows XP Professional with Service Pack 1
1.2 Built from Windows Server 2003 family
1.5 Called Windows PE 2004; built from Windows XP Professional with Service Pack 2
1.6 Called Windows PE 2005; built from Windows Server 2003 with Service Pack 1
2.0 Built from the first edition of Windows Vista.
2.1 Built from Windows Server 2008
2.2 Built from Windows Server 2008 SP2
3.0 Built from Windows 7 code base. It is included in WAIK 2.0.
3.1 Built from Windows 7 SP1 code base. It is included in Windows Automated Installation Kit (AIK) *** for Windows 7 SP1.
4.0 Built from Windows 8 code base. It is included in Windows ADK for Windows 8.0.
5.0 Built from Windows 8.1 code base. It is included in Windows ADK for Windows 8.1.
5.1 It is an update for version 5.0 that is applied manually.[10]
10.0.10240.16384 Has the same version number as Windows 10, as part of Microsoft's "One Windows" policy.
10.0.10586.0 Has the same version number as Windows 10 version 1511, as part of Microsoft's "One Windows" policy.
It is included in Windows ADK (Windows Kits 10.1).[13]