Hello,
I successfully flash this motherboard with a "Winbond W39V040A" (512 kB, LPC) chip which is currently tagged as UNTESTED for ERASE and WRITE.
Flash from BIOS version 1.0 to 1.A (the last one).
http://eu.msi.com/product/mb/K8MM-V.html
Here are the logs.
Benjamin