RAM timings confusion

[Blitzen]

Hi There
I have 2 x 1gb OCZ Platinum Rev 2.
The timings are a little confusing so here goes.......what is better?

4-4-4-15
or
5-5-5-15

There is also a '22' attached to the end of these specs...what is that?

The memory is also rated:
1.9-2.0 Volts

so what does
- 2.2V EVP**
mean????

Thanks fellas

[kalniel]

4-4-4-15 is better.

Don't know what the 22 is.

2.2V EVP could be 'extended volt protection' or something, meaning you could take it up to 2.2V

[Blitzen]

4-4-4-15 is better.

Don't know what the 22 is.

2.2V EVP could be 'extended volt protection' or something, meaning you could take it up to 2.2V

Cheers for that

[Steve B]

with 2.2 EVP you're under warranty whilst running the memory at 2.2V.

The 4-4-4-15 timings are tighter, which isn't necessarily better. At stock speeds, tight is good.
If you're overclocking, you may need to relax the timings slightly, in order to get peak performance.

[chuckskull]

The 22 at the end is the tRC, basically just another timing, 22 being pretty much standard on all DDR2 right now.

There's actually about 10 more timings in total, only the first 4 are listed usually as they have the biggest effect on performance.

and EVP means you can give it up to 2.2v without voiding the warranty. It's an OCZ thing. My PC8500 stuff has EVP up to 2.4.

[shaithis]

Out of interest, how do you know your ram is ver2?

I just received a Gold XTC 6400 DC kit from OCZ direct (RMA) and there are no rev2 markings, yet these are supposed to be new sticks.

A kit I bought recently was advertised as rev2 as well, yet again, I can't remember seeing any marking on the RAM or the packaging that specifies rev2.