How can i find out what kind of motherboard do i have?

I try crucial and here my results. I want to add more ram.
Your Crucial System Scanner Results



Our System Scanner couldn't make a complete match














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The following is a list of what our scan was able to detect:
System Manufacturer: BIOSTAR Group
System Model: N68PA-M2T
Motherboard Manufacturer: BIOSTAR Group
Motherboard Model: N68PA-M2T




Your Computer Specifications




512 MB EMPTY EMPTY EMPTY
Maximum Memory Capacity: 2097152 MB
Currently Installed Memory: 512 MB
Available Memory Slots: 3
Number of Banks: 4
Dual Channel Support: N.A.
CPU Manufacturer: AuthenticAMD
CPU Family: AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ Model 11, Stepping 2
CPU Speed: 2200 MHz

 

I did some research, it appears that the Biostar N68PA-M2T is the same as TF7050-M2 which is the same as this.
According to the specs at that link, you could use up to 2gb per slot, for 8gb total of DDR2-800... However, a 32bit operating system will only address up to roughly 3.2gb of RAM even if you have 8gb installed, so keep that in mind when upgrading. For more info about 32bit architecture and memory limits, read this. I hope this clears things up a bit....

[dlb]
:major

(so, to take full advantage of the dual channels, you'd put 1gb & 512mb of DDR2-800 in each channel for a total of 3gb. You'd need 2 x 1gb and 2 x 512mb DDR2-800 = 4 sticks total.)