I went all in and I won!

[NeoGen]

NB - the spec also says DDR2 but you are using DDR3. are you still talking about the GA-MA790X-UD4P board from your initial setup?

Oops... I see what you are saying... I had a small typo on the motherboard model... It's GA-MA790XT-UD4P

Sorry guys for the mistake. Yes, this one uses DDR3 only. And I know it goes beyond 16Gb because I filled the 2 empty slots with 2x 4Gb chips and it upped the memory to 24Gb. So... I'm assuming there should be no problem from 24 to 32.

When I started windows and was running boinc SAT@Home WU's the free memory count on the task manager was up to 20Gb (out of 24)... when the first BURP workunit landed on boinc that value dropped to about 5 Gb. Between BURP memory hogging and Windows file caching almost the whole amount disappeared!