根據 845mp data sheet 上是這樣說的:
http://www.intel.com/pressroom/kits...p_datasheet.pdf

===============
Max of 2 double-sided SO-DIMMs (4 rows
populated) with unbuffered PC1600 DDR (with or
without ECC) and PC2100 DDR.

By using 512-Mb technology, the largest memory
capacity possible is 1.0 GB.

The Intel 845MP Chipset memory interface supports DDR devices with densities
of 64-Mb, 128-Mb, 256-Mb, and 512-Mb technology. The maximum memory support is two, doublesided
SO-DIMMs (four rows populated).
===============

所以是以當時只有512M 來說,兩個插槽 可以插 512x2=1G
不過這一份文件是 2002.03 的,後來好像也沒修訂

但是在 同樣使用 845mp的 nb 上,有些卻說是支援到 2048M
例如:
http://www.okazii.ro/catalog/498018...ator-Intel.html

http://forums.techguy.org/all-other...ron-8500-a.html

我比較覺得沒有做 1024M 的測試,而非不可使用 1024M 的模組