Looking for SE326m1 bios upgrade

Hi to all,

I have got a SE326m1 running Proliant system Bios R02 (july 2010) 

I'm looking for a rompaq bios to upgrade this SE326m1 and fix the ipmi security issue open in 2013. Unfortunately, this model isn't listed on HP support center website and bios doesn't exist on SPP DVD.

The motherboard 583736-001 is shared with number of systems (SE1220, X1600 G2, ...). I find rompaq bios cp021345.exe for X1600 G2.

Is it compatible or not ? Is it a proliant system bios ? is it possible to install it within a USB Key ?

Thanks