CL5 vs CL6 RAM modules

[Slobo11ify]

Hello, I got two RAM modules today and they are Apacer 1 GB DDR2 PC-6400 CL5

I already had 3x 1 GB DDR2 800 MHz RAM's and I think that they are CL6

So now I added 2 new Apacer modules and removed one that's ProMS 1GB 2Rx8 PC-6400U and it says on the RAM that it is CL6.
I think other 2 that I already have are also CL6 and I'm wondering if this new RAM setup will maybe change it's speed ?
Will these two CL5 RAM's make any difference while there are other two CL6 also in the MOBO ?

Here's the album for all RAM's so I don't spam here with lots of images:
http://imgur.com/a/OY0nZ

Because I have 4 slots and I had 1 free, I removed ProMS module and added Apacer ones.

Says this for Apacer modules:

This is with Kingston and Samsung (Don't wanna spam with images so I'll post 1):

 

[joex444]

They all run at the same, and CL5 can run at the slower CL6 but not vice versa (if it does it is considered overclocked and not guaranteed to work).

It's not any faster, but if you now have 4x1GB DDR2-800 @ CAS6 that's at least better than 3x1GB DDR2-800 @ CAS6.

 

[Slobo11ify]

I'll have to install 64-bit version of Windows but that's not a problem, already downloading ISO from Microsoft website.
I'm just wondering if it will run slower or faster if they are CL5 CL5 CL6 CL6 RAM's

 

[photonboy]

The difference in the CAS value is insignificant to your overall Windows experience. Even if I sat down, got the same exact CPU and compared a CAS5 to CAS6 kit in benchmarks the results wouldn't be significant, and may not even be different as it depends on the CPU speed etc but in general it's NEGLIGIBLE.

You should just ensure that it's stable via Memtest86 www.memtest86.com

- run a full pass
- may need to change BIOS boot order

 

[Slobo11ify]

The difference in the CAS value is insignificant to your overall Windows experience. Even if I sat down, got the same exact CPU and compared a CAS5 to CAS6 kit in benchmarks the results wouldn't be significant, and may not even be different as it depends on the CPU speed etc but in general it's NEGLIGIBLE.

You should just ensure that it's stable via Memtest86 www.memtest86.com

- run a full pass
- may need to change BIOS boot order

CPU-Z images made me confused, as it can be seen, JEDEC are not the same on them ?
But you're saying that it won't make the difference if I still keep using them ?
Or I can replace one Apacer with ProMS module but it won't make the difference ?
Is it ok if it says 4,00GB Dual-Channel DDR2 @ 332MHz (5-5-5-15) even if the RAM's are 800 MHz ?

Sorry to ask so many questions, I already had some experience with RAM's but this time I got really confused...