An exception with mixing memory?

[carlos_will]

Hey guys,

The RAM I have is Corsair DDR2 XMS2 DHX 4GB (2x2GB) PC2-6400C5 RAM, with timings of 5-5-5-18.

A link to it: http://overclockers.co.uk/showproduct.php?prodid=MY-184-CS




I have found the same type of ram. but the tRAS timing is 15...

A link to it: http://www.novatech.co.uk/novatech/specpage.html?CSR-464DH

But in the novatech link, it says

"This memory has been veried to operate at 800MHz at the low latencies of 5-5-5-18."

Beats me. Is it just a typo or something? But just incase if it isn't, would they still be compatible if 2 modules were 5-5-5-15, and 2 of them were 5-5-5-18, i mean couldn't I just set all the modules to be 5-5-5-15?

Thanks.

 

[GhislainG]

You already own modules with 5-5-5-18 timings. The modules at Novatech also are 5-5-5-18, not 5-5-5-15. You could try them at 5-5-5-15, but running 4 modules is more challenging than 2 modules, therefore you shouldn't run tighter timings.