Have you tried overclocking an x58 xeon and compared triple channel to dual channel?
Have you tried overclocking an x58 xeon and compared triple channel to dual channel?
I am preparing my second PC using an Asus P6 motherboard, an X5675 CPU, an EVGA G2 Supernova 750W, and a GTX 980 Ti. I purchased a 4x4 RAM kit (DRD3 rated at 2400MHz with also 2133MHz XMP profiles). My main usage is playing Fortnite, and even during streaming it uses only 7-9GB of RAM, so I don’t really need more than 12GB. If I use three 4GB modules in triple channel mode, can I improve performance beyond dual or single channel setups? I’ve heard uncore ratio significantly affects RAM speed but requires higher voltages for stability. Should I aim for 1800MHz with a specific uncore ratio? Also, since my previous P55 Gen1 Lynnfield setup allowed up to 2133MHz RAM, is it feasible with an X58, or should I opt for lower RAM speeds with a higher uncore ratio for better performance? Thank you.
Memory speed wasn't a top concern during X58 overclocking. Most requirements depend on how much you can utilize the CPU.
The CPU frequency comes from multiplying the multiplier by the BCLK value. Ratios like 6x, 8x, 10x, or 12x affect the memory speed.
To achieve a 4GHz CPU, you need a high BCLK, and then you can see how quickly the memory operates. If it supports 2400Mhz, you should be fine running any frequency an X58 system can handle.
If you're not pushing the CPU overclocking limits, just set the memory to its default profile and either adjust timings or keep it as is—this won't significantly impact gameplay.
I aim for the best stable overclock on my CPU within a 1.40vcore limit, as my 3 fan AIO shouldn't cause issues. Fortnite is one of the few games where RAM speed really boosts FPS, which I've noticed in many YouTube comparisons. Reaching 2400MHz would need about 200 blks with P55, but my ASUS board only goes up to 188-190, so I'm considering either going for 200 blks or settling for stability. For the uncore, should I target the highest possible frequency?
I'm having trouble remembering what the uncore did on X58. It seems to require a double memory frequency for stability. Recent searches suggest 2000Mhz was used, which would imply an uncore of 4Ghz. I recall using 1600Mhz at the time, and that was the fastest memory available then. I ran the CPU with a slight undervoltage around 1.168 volts. It might help to look through old guides and forums for more details. Some users found stability on X58 by running BCLKs between 212-220Mhz, which often allowed i7-920 models to exceed 4Ghz.
I'll share my findings soon, but I'm too caught up right now. I'm hoping the BLCK exceeds 200 will give me a good look =)