How close is Atomiswave to Dreamcast hardware?

[dark]

I was looking at lists of the parts and specs for the hardware in the atomiswave, and it sounded like the hardware (SH4 at 200MHz, PVR2, Arm7, etc) was perhaps even closer to a stock dreamcast than the naomi 1 (save the rom nature of most of the games, and how the GDROM attachment works completely differently for the arcade systems)

Outside of the gdrom, we have the same hardware, with the same specs, from the same manufacturers. Can someone technical explain to me in layman's terms why we would not be able to boot the atomiswave bios on a dreamcast?

[l_oliveira]

I was looking at lists of the parts and specs for the hardware in the atomiswave, and it sounded like the hardware (SH4 at 200MHz, PVR2, Arm7, etc) was perhaps even closer to a stock dreamcast than the naomi 1 (save the rom nature of most of the games, and how the GDROM attachment works completely differently for the arcade systems)

Outside of the gdrom, we have the same hardware, with the same specs, from the same manufacturers. Can someone technical explain to me in layman's terms why we would not be able to boot the atomiswave bios on a dreamcast?

Atomiswave is a vanilla Dreamcast with a different ROM bios and an rather large custom Sammy QFP (quad flat pack) chip added.