T7610 stuck in boot loop when trying to install any OS

Hi,

I recently got a T7610 workstation, but I can't seem to install any OS onto it. I have tried Windows 10 from CD, Windows 7 from CD, ESXi from USB media, ESXi from CD, and Citrix Xenserver from USB media. In each of these, what happens roughly is:

• the boot media is detected and the installer begins to load up
• the installer starts loading files
• as soon as the installer is done loading files, the workstation reboots and the whole process starts again (sometimes there is a flicker of what the next screen would look like, but usually not)
  • for example, in ESXi the reboot occurs right after the message 'Relocating modules and starting up the kernel'

I have tried/ruled out:

• Run the hardware diagnostic check accessible from the BIOS - no issues
• Bought a brand new internal HDD and verified that it is connected, detected by the BIOS and LSI Controller - BUT this problem occurs even before I get to the stage of needing the HDD. Ie even if I take out the HDD and run the windows installer, I get into a boot loop long before I actually get to the point in the installation where I need to select the HDD
• Updated the BIOS to latest version

My specs are:

• 2x xeon e5-2690v2
• 128gb ddr3 ram
• nvidia gtx 1060 Ti

Please help? I have no idea what to do next!