DDR3 Subtimings help - Lower timings = worse performance?

Soldato
Joined
25 Jun 2009
Posts
3,469
Location
Weston-super-Mare
Hi

I've recently fallen down the rabbit hole of secondary and tertiary timing tuning.

I've noticed that when lowered, certain timings, for example tFAW (FOUR ACT WIN Time) down from 29 to 26, give me consistently longer superpi times.

Whats with that?

There were several timings that acted like that. I'm sure they are stable as many passed over 1000% HCI test.

Should I aim to bring them back up the the sweet spot that superpi likes, or is it likely to just be a superpi thing and still aim to get them as low as is stable if my aim is general system performance?

Oh, and don't bother telling me I'm wasting my time. I'm well aware of that, I just like tweaking and I'm really starting to run out of things to tweak lol.

system is

Asrock z97 extreme4
4790k @ 4.7GHz / 4.3GHz cache
16GB DDR3 Kingston hyperX Savage ram @ 2400MHz 11-13-14-28

Thanks
 
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