Seems like you're experiencing this issue: VMware KB: VMware ESXi 5.x host experiences a purple diagnostic screen mentioning E1000PollRxRing an...
And since you will need E1000 virtual network adapter to boot up VMs from WDS, I will recommend you pach your ESXi server or replace the E1000 for VMXNET3 on VMs, but since there is no native drivers in Windows Server you will need add these drivers on image: VMware KB: Configuring Windows Deployment Service to PXE boot with the VMXNET3 driver in Windows Ser...
i tried several way to avoid purple screen on esx host.
only one way that helps yet is that i m changing the NICs on vm guests