boot server 2003 vhd created with hyper-v with grub4dos

hello.

i created a vhd containing server 2003 with hyper-v of 3gb and I can load it in RAM and then boot it with grub4dos {map --mem}.

Windows boots in just 4 seconds.

But when I do this without RAM {mem} I get BSOD.

I want to do this to install the GPU and maybe more.