Trfc effect. I would leave yours as is to avoid degradation. . Jun 2, 2023 · The real ratio that matters is tRFC to tREFI. If you have a tRFC of 1000 and a tREFI of 10000, 10% of the time your RAM is refreshing (refilling the capacitors) and therefore unusable. 47-1. I run mine at 1. Apr 22, 2025 · Refresh Cycle Time (tRFC) tRFC is a very important timing in the secondary timings and is always tuned when we’re tuning the memory. It controls how often RAM refreshes the data. It is also very dependent on the DRAM temperatures overall. 5v (i forget which) daily which is fine for my kit. That ratio is the percent of time your RAM is unusable for any sort of data operation. You can set it to whatever you want, there are a ton of registers that are not available to us. tRFC is the number of cycles for which the DRAM capacitors are "recharged" or refreshed. Dec 12, 2020 · I am not sure how you can set uneven numbers for that, as it has to have trfc/2 and trfc/4. Because capacitor charge loss is proportional to temperature, RAM operating at higher temperatures may need substantially higher tRFC values. Lowering tRFC to the max is overrated. Aug 24, 2004 · In line to the top of a column is lowest value of tRFC a RAM IC will support. You might gain a bit more due to natural "silicon to silicon" variance, but won't beat it by wide margin. I guess it auto adjusts to some other values in reality. I have 4x8GB b-die kit and my latency at c16 3800 doesn't fair much better than 58ns but my trfc is 304. It's one of those timings that'll silently corrupt your Windows install when tuning too tightly, and its performance benefits are way more visible in synthetic benchmarks (that mostly measure first word latency and nothing else) than in actual applications. xqcwe lfznw slnvcx xsakli dnmt ccvc hxv thoy jakkt iwzih