Physical NICs power off when more than One virtual machine starts

I have a new ESX server with 3 virtual machines. The server has 4 physical NICS (2 broadcom, 2 intel). However, when i power on more than one virtual machine, all of the physical NICs stop working.  

Currently I only have the server setup to use one of the NICs, but the rest are cabled up. I tried disconecting all of the NICs except one of each type (tried with 1 of the broadcom NICs connected and 1 of the Intel NICs connected). For some reason, still when I power on more than one virtual machine all of the NICSs (or just the connected one) cease to work. No link lights at all, after a while, they seem to come back up but will continue to work intermittently until only one virtual machine is working.

Any idea what might cause something like this or how to resolve it?
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65tdConnect With a Mentor Commented:
Are the service console and the virtual servers using the same NIC?

I would configure one NIC for the service console and if using one one ESX host then then the other 3 for the virtuals.

More than one ESX host take another NIC out of the pool and use it for the vmKernal (vmotion).

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