no physical memory for windows boot manager

[captain obious]

I'm getting an error when trying to boot to the local hard disk. The error is: "No physical memory is available at the location required for the Windows Boot Manager. The system can not continue.". This is on an HP bl460c G8 blade server with an Emulex NIC.

I am using the sanboot trick. If I simply exit, iPXE exits the PXE ROM, and then the machine gives the RSOD (red screen of death) with Illegal Opcode.

I am running BIOS version 9/8/13.

Bizarrely, the same machine can boot WinPE (using wimboot) - but not the local disk.

I have another blade server - a bl465 G0 with a Broadcom NIC that will boot just fine.

I've also got a VMware VM that will boot just fine.

I wonder if I am trying to do too deep of a chain?

I am using undionly.kkpxe with an embedded script:

Code:

#!ipxe
dhcp
chain http://awebsite/boot.php

which returns

Code:

#!ipxe
sanboot --no-describe --drive 0x80

Thoughts? Suggestions?