two ssp-40 in 5585-x - can not install ASA image

Hello, trying to get my super "cost-effective" fw ha setup up& running, but got stuck simply tried to boot into ASA image from rommon using tftp, tried the whole bunch of images i.e:

asa9-12-3-9-smp-k8.bin

asa922-4-smp-k8.bin

asa964-36-smp-k8.bin

​

But each time I end up with:

Launching TFTP Image...Execute image at 0x14000
Cisco Security Appliance admin loader (3.0) #0: Mon Mar 16 18:31:24 PDT 2020
Platform F1-GENERIC
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!! This is an ASA image and cannot be loaded on a PIX platform !!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Rebooting...

​

What am I doing wrong ? Would really appreciate any direction...