When I try to start up with the RAM in slots A2 B2 as the manual recommends the computer won't boot and a solid red LED is lit by the memory reset button. So, I then tried holding the button to test other configs and it still doesn't boot.
Next I removed the stick in B2 and it started right up. Just to test, I swapped the sticks and as long as there is only 1 stick of memory in A2, it will boot, both sticks appear to work on their own, just not together. After I got it to boot again I updated the BIOS and tried again, but it still didn't work with both A2 and B2 populated, same goes for populating A1 B1.
Does anyone have any thoughts on if this is a memory incompatibility, bad memory, bad motherboard or something else? I'm hoping, worst case scenario it's the memory or an incompatibility so I have to dismantle this thing again completely.
my first sabertooth board had the same error. it can be three things. a bad motherboard (most likely). a bad cpu chip (the memory controller is onboard the new intel cpu.) or a bent pin under the cpu. if the mb under 30 days i would return it first then breadboard the new mb to see that the ram works.
Thanks for the advice, I may pickup another motherboard locally and test it. If it works I'll just keep that one and RMA the bad board, but that will at least give me a chance to check for bent pins and to localize the issue and then move on to RAM or CPU if the swap doesn't fix it.
As predicted, it was a bent pin. Not even bent pins as in multiple, but a single bent pin. I had to move my flashlight at different angles just to see the damn thing. I replaced the motherboard, installed everything and booted up like a champ.
Thank you all very much for the help. I took a macro shot of the bent pin, after I get this thing up and running and post a link to it.