RAM timings question

[Method]

I have 2x1GB of Corsair CMS2 PC2-6400 800MHz 5-5-5-12 in my current machine which will be going in my new rig. So I ordered another 2x1GB of exactly the same ram to make it 4GB as ill be using Vista 64bit.

But overclockers screwed up the order and gave me a pair of 5-5-5-18 sticks.

What im wondering is, are the timings that much of a performance boost, because I was hoping to start building tomorrow and cant be assed to wait a week or so for them to be returned and the 5-5-5-12 to arrive. Or will the 5-5-5-18 sticks do just fine. And will there wontany conflicts with the other 2 5-5-5-12 sticks if there matched with the 18's?

Thanks

- Will

 

[wafflehammer]

you could easily just set the new ones to 15 in the bios

 

[thirdshiftdj]

yep, there shouldn't be any problems at all

 

[Method]

Could I set the new sticks to 5-5-5-12 instead of 5-5-5-15 and it will function fine?

 

[baron5]

well, i had the corsair ddr800 18 sticks and with a lil voltage u can set them at 5-5-5-15, and probabaly make it to 12 aswell. dont forget, every hardware is different, try urself to find out.