T5500 Memory Configuration

Hello,

I have a Precision T5500 Workstation with 1 CPU (an E5504 quad core).  The working RAM is a chip of Samsung M39185673EH1-CF8 2GB 2Rx8 PC3-8500 ECC Unbuffered Server RAM.  I purchased four Hynix HMT31GR7BFR4A 8GB 2Rx4 PC3-10600 ECC Server RAM.  When powering on the system, the motherboard will absolutely not accept any configuration of the Hynix RAM (it beeps at me).  According to page 2 of the manual for this motherboard, I have a supported memory module.  I've tried inserting one, two, three, and four, and in accordance with the manual for 24 GB (3x 8GB chips).  Still no luck.  I am not mixing the RAM brands or speeds or types - they are identical.  It's not bad RAM, because I purchased them new and none of the chips will take.  Oh, and I reset the BIOS, too.  The original Samsung RAM does not cause a beep and it works perfectly.

Am I missing something here?

Thank you,

Brady