H61M-P12 (B3) Won't Boot & Won't see 2nd Memory Slot

MSI H61M-P23 B3 Thermaltake Barebones Kit -
MSI H61M-P23 B3 Board -- 2nd Motherboard, 1st one same problem.
Intel Core i3-2100 3.10 GHz
Patriot 8GB (2x 4GB) DDR3 RAM -- 2nd Memory, 1st one same problem
Seagate 500GB HDD
Optiarc 24x DVDRW
MSI N520 GT PCI-E Video Card
Thermaltake V2 Mid Tower with 600W PSU (Changed out the PSU)
Install both Memory sticks and it won't boot, doesn't past post.
Install 1 Memory stick, it boots, works great. It doesn't matter which stick is in the slot closest to the Processor, they both work great.
We have replaced the Motherboard and the Memory. We have upgraded the PSU to a 600W. The only time we have problems is when the Memory is in the slot furthest away from Processor.
We tried this with and without the video card in, same problem.

Followed your instructions to a "T". I now have Bios version E7680IMS.V17.6  I shut the computer down, unplugged without the battery for 2 hours. Cleared the CMOS....STILL HAVING SAME ISSUE!!!! It won't boot and sends me into an infinite loop with both memory modules in both slots.
I am so close to sending the Motherboard, Video Card back for full refund!!! and never buy MSI again!!! This seems to be a recurring theme all over the internet regarding MSI, and yet I can't seem to find a solution.

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