I've been scratching my head on this for a week with no solution so far. I need some advice...again.

Ok, I got this ASUS A8V mother board which can handle up to 4 gigs of memory. It has 4 slots and there is a blue primary slot for each pair. Currently I have 2 1 gigabyte sticks in it. I also have a third gig that I wanted to put in there with the other 2.

I Installed all three when I got the motherboard and the monitor wouldn't kick on when I powered it up. I stripped the hardware down to bare minimum (i.e. only 1 stick of ram) and the monitor kicked on on boot. I then installed the second gig stick into the second blue slot and the monitor still worked. I then tried the third and no monitor again. I suspected that the ram was bad and installed it on another computer but it worked just fine. I've tried googling this but come up with tons of non-useful tips.

The motherboard book says that the sticks need to be identical. By that, do they mean all one gig (which they alread are) or do they mean even the same brand too? The two that work are completely the same brand and all but the third is a different brand but the exact same ram.

Is my motherboard bad? I don't think that there are any jumpers that I need to switch and BIOS doesn't have anything on memory like what I'm needing. Thanks for any help.

-Munny