You may need to wait some time to answers like this. Vmware is not responsible for answers, this community is public and people like me answer on their free time,is not a job 
But anyway... do your board on a AS-2041M-32R server, or you build your own server? Have you seen the BIOS version on HCL to check if is the correct one? For any ESX 4.x version, I see the version should be "American Megatrends Inc. 080014".