Originally Posted by amang
Originally Posted by anubis1127
Folding performance likes quad channel memory bandwidth though, so if possible you still want to do that when you can.
Does it mean it's better for me to fill up those 4 banks of memory modules for each CPU than only use 1 bank?
This is a little test i did with my Opterons a while back:
As you can see, going from one stick to two sticks had a very large impact. Adding more didn't add much, although it was a gain. Different architecture will most likely show different results.
Amount of memory; my 4P is using 7% of 32GB on 48 cores, so about 2.3GB. My 2P is usinf 6.1% of 32GB on 30 threads, ~2GB.
Originally Posted by Chooofoojoo
Which supermicro board do you have Amang? I heard somewhere that with our AD chips on the 4-memory slot boards that you can run 1866 memory, Will look into it further.
Didn't think my 4p board could support anything over 1.5V.
Again more research is needed on my end.
Yea, you're always wise to look for memory which is 1.5V max with server boards. Also to keep in mind, most quoted speeds/timings isn't JEDEC spec, usually XMP is used to get those specs. XMP support is very thin on these board as well.
As always, do your research before buying parts...