:confused:

AHHHHH HELP! I HAVE JUST ADDED MY NEW STICKS OF CORSAIR TO MY MACHINE AND AGHAST....HORROR.... BLUE SCREEN ....."IRQ NOT LESS OR EQUAL"? IS THIS A COMPATABILITY ISSUE WITH MY OTHER RAM NANYANG 2 X 512?

Could be different things, driver, hardware, data corruption...some reading Here (http://support.microsoft.com/search/default.aspx?mode=s&cat=false&query=driver_irql_not_less_or_equal&srch=sup&x=14&y=3)

Also some more detailed information might be helpful, system specs, how much RAM total, exact error message...

:confused:

AHHHHH HELP! I HAVE JUST ADDED MY NEW STICKS OF CORSAIR TO MY MACHINE AND AGHAST....HORROR.... BLUE SCREEN ....."IRQ NOT LESS OR EQUAL"? IS THIS A COMPATABILITY ISSUE WITH MY OTHER RAM NANYANG 2 X 512?
Good chance of that being the case(incompatibility). Even if the speed matches, there might be a difference in the density of the modules or chips as I discovered when adding a new chip to an existing older one.

The other thing I'd suggest is going into the BIOS setup and checking that you have default "timing" settings for the RAM.