Are you absolutely sure the mobo is beyond hope? I will recommend a mobo that'll work but I would hate to think you're replacing parts (especially a motherboard) if you don't need to.
Anyway, If you are unable to RMA your board as faulty for an exchange which I would think you may be able to do (unless there is a burn mark from a near explosion or fire on it somewhere) then I night recommend one of these two boards ASUS M5A88-V EVO AM3+ AMD 880G which features built in graphics - handy if you have graphics card issues down the road. ASRock 970 EXTREME3 AM3+ AMD 970 which does not have integrated graphics
About the boards very similar, full ATX size, AM3+, both have 5 each SATA III connections and one eSATA, both support your ram speed and I don't think either are too pricy
Check your motherboard and the RMA process with MSI before ordering a new motherboard though, you might just get yours replaced by them.
Hope it helps