Ошибка установки VMware на Dell PE R715

Have you tried the Dell specific .iso? If I remember correctly those are required for the Dell hardware. I'm currently stuck on my iPhone with edge, so I can't easily get a link at the moment :)

The OEM cd images should be on the VMware.com site under the OEM tab: http://downloads.vmware.com/d/info/datacenter_downloads/vmware_vsphere_hypervisor_esxi/4_0#drivers_tools