No monitor signal on bootup

Hi,

I received a new machine yesterday which is an :

* Asus P5W DH Deluxe Intel 975X (latest flashed bios as of yesterday)
* Gainward 768MB GeForce 8800GTX Dual DVI (latest drivers as of yesterday)
* Intel Core 2 Duo E6600 2.4GHz 1066MHZ FSB 4MB Cache (overclocked to 3.0Ghz)

Now my issue is I do not see any of the BIOS, POST etc messages on bootup. I also see no monitor signal once it is in windows until i power off the monitor at the wall and power back on. I am testing in the following modes:

1) 23" Apple Cinema Display DVI into the first DVI out
2) 19" Samsung 930BF display DVI into the first DVI out
3) 19" Samsung 930BF display Analogue with DVI converter into the first DVI out

1) 23" Apple Cinema Display DVI into the second DVI out
2) 19" Samsung 930BF display DVI into the second DVI out
3) 19" Samsung 930BF display Analogue with DVI converter into the second DVI out

1) 23" Apple Cinema Display DVI into the first DVI out, 19" Samsung 930BF display DVI into the second DVI out

I guess you can see where I am going with this, I have basically tried all configurations and at no time can i get monitor signal until windows has started and i power off the monitor at the wall and power back on. Once i do this i can use the monitor fine.

Anyone got any suggestions for things I can try/check?

Thanks,
Jason.

 

That is a pretty big OC, did u increase the voltage to the cpu?

 

I actually didn't do the overclock myself, the place I bought it at overclocked it for me.