RAM slot not working

[ok_horn]

i just bought a 2gb stick of ddr2 ram.... i have 512 gb of ram in 2 slots already. they are in the following order when i put the 2gb stick in:
a. empty
b. 215 mb
c. 2 gb
d. 215 mb

i turn the computer on and it's only saying 512 still. so i rearrange them as followed:
a.215 mb
b.
c. 215 mb
d.2 gb

now it's only saying 2 gb's..... are the slots messed up or can i not arrange the ram like that?

 

[OvenMaster]

Usually your motherboard manual will spell out how the RAM can be arranged.
You should only have an empty slot after any others are filled first.
For instance:
a. 2GB
b. 215MB (odd size... sure you don't mean 512MB? or 256MB?)
c. 215MB
d. empty slot LAST

Tom

 

[ok_horn]

Usually your motherboard manual will spell out how the RAM can be arranged.
You should only have an empty slot after any others are filled first.
For instance:
a. 2GB
b. 215MB (odd size... sure you don't mean 512MB? or 256MB?)
c. 215MB
d. empty slot LAST

Tom

thanks for the reply. i have a dell computer (i know, i know).... i'll check my manual, but i thought ram was supposed to match in the 1st and 3rd slots, and the 2nd and 4th slots....sorry i meant 256 mb...