Thanks for your efforts madburg. Successfully flashed three M1015's to IT-mode firmware using your guide.
Motherboard used: Gigabyte GA-X58A-UD3R (rev. 1) in 4th PCI-e slot.
Failed with PAL issues in Asus P8B WS motherboard (tho I only tested first PCI-e slot)
EDIT:
Method was DOS Bootdisk with P11 firmware
EDIT2: It was in the 4th PCI-e slot on the gigabyte mobo