Объем можно узнать используя int 15h AH = 88h Extended memory size Exit: For DOS and Windows 3.x (AT Compatible): AX Amount of extended memory to 64 MB, in 1 kB blocks For Windows NT 3.1 and OS/2 2.11 and 2.20: AX Amount of extended memory to 64 MB in 1 kB blocks 3C00 = 15 MB or > 64 MB (Test further with INT 15 E8) AH = E8h Big Memory size (over 64 kB) AL = 01h Big Memory Size, 16 Bit (Windows NT 3.1 and OS/2 2.11 and 2.20) Exit: Carry 0 => E801 Supported AX Memory 1 MB to 16 MB, in 1 kB blocks BX Memory above 16 MB, in 64 kB blocks CX Configured memory 1 MB to 16 MB, in 1 kB blocks DX Configured memory above 16 MB, in 64 kB blocks AL = 81h Big Memory Size, 32-Bit Protected Mode (Windows NT 3.1 and OS/2 2.11 and 2.20) Exit: Carry 0 => E881 supported EAX Memory 1 MB to 16 MB, 1 kB blocks EBX Memory above 16 MB, 64 kB blocks ECX Configured memory 1 MB to 16 MB, 1 kB blocks EDX Configured memory above 16 MB, 64 kB blocks Тип и объем ОЗУ можно узнать через DMI структкры (типа 6). За подробностями BIOS_DMI_20.pdf Также можно SPD блоки напрямую прочитать с планок памяти.
