Dual Core CPU on Abit NI8-Board

Hello to all!

I hope that this is the right place for me to report my problem - if not, 
please tell me!

Some days ago I've purchased a new motherboard, cpu and graphics-adapters.
The board is called "Abit NI8 SLI" which has a nForce4-Chipset and a socket 
775.

http://www.abit-usa.com/products/mb/products.php?categories=1&model=280

The CPU is a Pentium-D 2,8 GHz. And the graphics-adapters are two 
GeForce7800GTX-Cards...

My problem is, that a "cat /proc/cpuinfo" shows me just one cpu with one core. 
I've tested this with kernels 2.6.16.1 and 2.6.17-rc1 (x86 and x86_64)

If I add the following line in my lilo.conf to the kernel, I can see both 
cpu's:
append="pci=noacpi pci=routeirq noapic acpi=off"

After this my cpuinfo looks like this:
http://www.kpage.de/cpuinfo.txt

and dmesg say's this:
http://www.kpage.de/dmesg.txt

But if I do so, the machine is running very unstable and is hanging after a 
while. The crashes will happen espacialy if I run OpenGL-Applications like 
"glxgears".

Can someone of you tell me, what I can do to fix this problem?
If you need further information, please tell me!

Thank you very much and greetings!
Frank

-- 
Name:	Frank von Daak
eMail:	[email protected]	Homepage: http://www.kpage.de
"It takes a revolution, to make a solution!
    Bob Marley"
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