trust me on this one mate
dual channel was only introduced with DDR memory, or as i'm not too familiar with the platform RD-RAM. so the earliest dual channel was with K7 and P4 technology. this memory fits in somewhere around late 486 to late Pentium. 168 pin SD-RAM DIMMs were being introduced by the end of the original Pentiums. SIMMs are added in matched pairs, each pair making a single "bank" of memory.
Note: EDO memory must be installed in pairs. Fast page must be installed in pairs in Pentium class computers. By "in pairs" I mean 2 of the exact same type of SIMM must be installed. For example, if you want to upgrade by adding 32MB of memory you must put in 2 16MB SIMMS.
from epinions.com, first site i found in google