Vista - Crysis lag on bad ass pc?

I think its my pc.fsx doesn't play as well as it should.I bought this pc based on articles from the net and youtube,who can set crysis and fsx on max settings,but with lesser pc's than mine,i don't understand why mine lags so bad.I think i'll phone mesh who i bought it from on monday.How do i test the overall power of my pc?Thanks again for your help lads.Should i phisically remove one of my cards?How will this affect my other games?Check out this vid(http://uk.youtube.com/watch?v=UXlR-Sjwg4w),the guy is using the same cards as me,and its flying.I did notice one thing,it seems to be people with cpu's faster than 3.0 ghz that can play crysis on full?Someone mentioned that my cpu might be bottlenecking?How do i overclock quad x9650's?
When i go to the nvidia control panel/system info,it has 4 9800gx2's listed.I checked to see if they all had the same info,but the bottom one said IRQ 16,all the others said IRQ 0.What does this mean?

I saw this on another forum:

Did you install drivers for both GPUs? Since 9800 GX2 is a dual GPU GFX you need to install 2 drivers not just 1. If you only install one then you get half the performance leading to half memory, bandwidth, fill rate , texture, core , memory, shader clocks speeds etc...

Is this true,and how?

I just benchmarked it and got:P13942 3DMarks,CPU Score 11473,Graphics Score 15019,Driver status WHQL - Not FM Approved.
Can be seen here:ORB - World of Performance

Can you post your specs? Does your device manager show your video card properly loaded?

NO.. you only install ONE driver dude.. it's considered one single card.. not really. but your system see's it as a single card. also you should be getting at least a good 50 FPS or more in crysis..

what PSU do you have.....? that system will be very power hungry!!

SK

Crysis isn't a very SLI friendly game though in some cases. Try taking one card out and see if you do see a difference.

Just to give you a reference point I run crysis wide open except for AA which is set to off .. I really havent tried it with it on x4 yet I keep about 60-70fps during shooting and high action on my system .. I dont see where yours should be much less.

Asus P5Q-E
q6600 @ 3.0Ghz
4GB G.Skill at 1066
1 ATI 4870 512 DDR5
Native resolution at 1280*1024 for gameplay

Benchies 3dMark06= 14194 on default settings, and no OC