Mixing RAM CL speeds

[mcgriffo]

Hi
I already had 2x2gb of DDR2 800(Hyundai) in 2 slots on my dell desktop and ordered two more to fill all four slots and take it to the max 8gb (64bit o/s). They sent me two Patriot 2gbs instead as they were out of the others.

The only difference I can see is that the Patriot is CL5 and the Hyundai is CL6.

They are both PC2-6400, Speed = 400 MHz (DDR2 800).

They Hyundai supports frequencies 266.7, 333.3, and 400 MHZ
Patriots support only 266.7 and 400 MHZ.

They both have their CL numbers to run at 1.8 volts.

I have them in alternating slots (i.e slot 1= Hyundai, slot 2 = patriot, slot 3 = hyundai etc)

Would I have to tweak anything BIOS-wise to get the most out of them as they are different?
Thanks

 

[bifday2k]

No need to tweak anything, they will all run at the Frequency of the slowest pair.

So they will be running at 400mz (DDR2 800) at CL6 timings, the motherboard will automatically do this so there shouldn't be a problem, especially if both sets are the same volts.

 

[MooMoo444]

so there should be a problem, especially if both sets are the same volts.

He means shouldn't but is absolutely right.

 

[bifday2k]

Doh! nice spot moomoo, iv edited it now.