The 7184 is an OEM board made for Emachines. You will need to check with Emachines for the specs. for that model. MSI offers no support for OEM versions.
I had recently got an Emachines T6412 with an AMD athlon 64 3400+ and I believe that that cpu has a 754 pin socket type, but SiSoftware sandra and other informational programs like cpu-Z, is reporting that it is pluged into a 939 slot. I do eventually want to upgrade the cpu and I need to know what socket it is. If it is 754 I will get an amd athlon 64 3700+, and if it is 939 I want to get the 4000+. and I don't want to go out and buy a new cpu to find out that it is the wrong socket type, so if you can please clear this up for me, I'd appreciate it.
ps. the mother board is a Micro-Star Ms-7184