Asus P5QC 1x8 GB DDR3??

[BMatyas]

My system:
CPU: Core 2 Quad Q6600
MOBO:Asus P5QC
RAM:
2x2 ddr2 800mhz Geil Black Dragon
1x2 ddr2 800mhz Samsung
1x1 ddr2 800mhz Something(just found at home)

I want to upgrade this setup whit ddr3 1333mhz memory. I'm thinking about to buy one 8gb module, and maybe in the future buy another one.
I searched in the Asus website and found this:

2 x DIMM, Max. 8 GB, DDR3 1333/1066/800 Non-ECC,Un-buffered Memory

This means 1 slot max 8gb, or 2 slot max 8gb?

 

[nitinvaid20]

2 Slot Max 8GB means 2x4GB

 

[BMatyas]

Thank you for your answer