PC2700 memory

[zen]

My board is an ASUS A7V333-X part of the spec is :

Processor
Socket A for AMD Athlon XP/ Athlon/ Duron up to 2.8 GHz+
333MHz FSB Support

Chipset
North Bridge: VIA® KT333(CF)
South Bridge: VIA® VT8235

FSB
333/266/200 MHz

Memory
3 x DDR DIMM Sockets
Max. 3GB unbuffered PC2700/PC2100/PC1600 non-ECC SDRAM Memory
(PC2700 Max. to 4 banks only)

Could someone explain in simple terms what "PC2700 Max. to 4 banks only) " means ??

I have installed 2x256Mb of pc2700 and 1 spare slot.Can I install any more pc2700 memory ?

[zen]

Found my own answer,and acknowledge Overclockers.com as this is extracted from their site;
"SiS 645 boards only support 4 banks of PC2700 DDR SDRAM, so being able to run only 2 double sided DIMMs is exactly what the specs say! And naturally, this is true for all SiS 645 and 645DX boards out there, as this is a chipset limitation."

not my board ,but explains that

1double sided DIMM =2 banks

Sorted.