Dual Channel RAM Problem

Hi,

I bought a new computer and I have a little problem. Here is the setup:
Geil DDR2 LONG DIMM 2x512MB 800 MHz
Asus M2N32-SLI Deluxe/Wireless Edition, AM2
CPU AMD ATHLON 64 4200+ X2 Dualcore Box, AM2

The problem is in RAM. I red the manual and it says insert RAM into slots colored with the same color. I have 2 black and 2 yellow slots. But if I put them in the same colored slots computer freezes or doesn't start. If I insert only 1 module then the computer works ok.

So i hope anyone here can help me with my problem.
Thanks in advance!

is the ram compatible with your system?
Is there a setting in BIOS you have to change?
Is your BIOS the latest version?

Yes the ram is totaly compatible with my system. I red the manual again now and there are settings in bios about ram, but dual channel ram is not mentioned anywhere. I haven't updated my bios. So I don't know.

Yes i red that pages. But if I put both into yellow sockets it doesn't work. Even if I switch them. And i wouldn't say that GeIL isn't supported. Hmhm.

You are sure your ram is compatible? Its not only the clock speed but also voltages etc...?

Regards,

Korrupt

Here is information about my power supply:
http://www.hard-h2o.com/review/psu/lcsilent-giant.html

Yes I think that ram is compatible because if it wouldn't be then my computer wouldn't work with only 1 stick of this ram in it? Or am I wrong?

red the manual? hahahaha

but seriously- check this FAQ: http://www.techspot.com/vb/topic47210.html

Asus is very picky on RAM.

Read, sorry, my mistake.

Ok i checked out your guide. There is something mentioned about BIOS/CMOS setup error. I get that error when I put in both rams into the first (yellow) slots. Otherwise i hear few sounds from my computer speaker. Now I run my system with only 1 memory stick from that GeIL package. So my ram isn't compatible with my motherboard? But how can then system run normally with 1 stick?