Double Bank and Single Bank, Can you mix these?

[Beandog]

Ok my system is been wacky for a week now and I am slowly eliminating the differences since I have two systems running side by side with almost the same specs, one is been up and runnin for month, other had problems, random boots, trouble installing big software packages, music skips, mp3s skip....just flaky random stuff...Id list all my specs but really just want a simple question answered or may be 2
1) I just noticed that my good comp has 2 sticks of crucial 2100 and under Sandra both sticks show as single-bank, but the comp thtas having trouble has 2 sticks of crucial 2100 but stick in bank 1 says double bank while stick in bank 2 says single bank...can that be a problem? I just tried to run memtest version 3.0 and it trys to start but goes into a loop and reboots before I can read what it says on the screen.
2) I noticed my good comp under sandra says its missing SMBus/i2c/BMB controller and my comp having problems says this thing is loaded in fine? could this be causing my problems in buss transfers?
I am getting ready to yank out one ram stick and test system, but was wonder what the difference between double and single bank is and can they be used together? Thanks for any help
PS I am runnin Win98SE full install, MSI KT3 Ultra2 Mobos, xp1600, cd rom, 40g HD, 2 system fans, SK7 HS with 80mm CPU Fan at 3000rpm, GF2 GTS Leadtek, HD was wiped and reformatted several times with fresh 98se and latest certified drivers from all websites, all latest windows updates too.

 

[Kingofcomputer]

yes, you can mix, but with limitation:

for 256MB dimm, double bank = double side = each side has 8 chips, total 16, each chip is 128Mbit;
single bank = single side = one side has 8 chips, each chip is 256Mbit = higher density memory chip than the one used in double bank.

motherboard chipsets support x amount of banks, each slot on the motherboard = 2 banks,
some motherboards have more slots = more banks than the chipset can support, which makes the last slot useless if you put in all double side dimm,
or if you want to use all the slot, you've to use some single side dimm at least.