PC5300 Timing Question Please!

I have currently installed 2x1GB PC5300 667Mhz sticks with 5-5-5-15 timings,

I also have 1x2GB PC4200 533Mhz stick with 4-4-4-12 timings on a basic motherboard with no oc options really.

If I install the 2GB stick I know all the RAM will run at 533Mhz, but what will the timings be? Will all the RAM run with 4-4-4-12 timings? My MB won't tell me the timings!

Any help would be greatly appreciated.
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More about pc5300 timing question please
  1. Download and run CPUZ or PC Wizard 2007 to find out info like that.

    However, since 5 clock cycles at DDR2-667 is the same amount of time as 4 clock cycles at DDR2-533, I'm sure your current modules will work at CL4 at DDR2-533.
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