Can I mix ram with different timings? 2 of the sticks are 2gb with 5-6-6-18 timing (OCZ Gold) and the other 2 are 2gb with 5-5-5-18 (OCZ Platinum). Both are from the same company (OCZ)
You'll just have to try it. If you get bluescreens, try manually setting the voltage and timings to the slower of the two, which is the pair of ocz gold.