Поизучал официальные доки самой интел, Hardware design

Поизучал официальные доки самой интел,
"Hardware design support FAQ" недвусмысленно заявляет:

Are 256Mbit SDRAM's supported?
The 82443BX does not support 256Mbit technology SDRAM.

128Mbit technology SDRAM using 16MX8 devices has been tested in the Intel® 82440BX System Validation (SV) platform using the 82443BX C-1 stepping. This SDRAM memory configuration was double-sided. Each SDRAM DIMM module therefore contained a total of 256MB of memory. A total of four DIMM modules were available for testing. For further information please see page 25 of the specification update.

Т.е. действительно 16Мб на чип. Но вот в даташите сам черт ногу сломит:
download.intel.com/design/chipsets/datashts/29063301.pdf

Integrated DRAM controller
— 8 to 512 Mbytes or 1GB (with
registered DIMMs)
— Supports up to 4 double-sided

DIMMs (8 rows memory)
— 64-bit data interface with ECC
support (SDRAM only)
— Unbuffered and Registered
SDRAM (Synchronous) DRAM
Support (x-1-1-1 access @ 66 MHz,
x-1-1-1 access @ 100 MHz)
— Enhanced SDRAM Open Page
Architecture Support for 16- and
64-Mbit DRAM devices with 2k, 4k
and 8k page sizes

Мне явно нехватает знаний по этому поводу..как понимать выделенное заявление?
В любом случае, сегодня попробую поменять эти плашки памяти на другие.