Trefi 65535. Another culprit to look at is tRFC.

Trefi 65535 tREFI will show improvement all the way to 65535, but you do risk instability if the motherboard is not good enough or the RAM isn't strong enough to maintain the data, as you Jun 19, 2003 · 关于内存超频时tREFI设置的误区和优化建议。 Nov 11, 2016 · Why not max trefi? Isn't 65535 the max on the ryzen chips? EG1. Mar 5, 2024 · Most of the "essential" subs you tweaked on DDR4 still take the same recommended values. I was stable here, should I go up to 65535 or keep going up by 7414 increments? Maybe their is a guide, forum, video on this specific timing? Thanks yall! Or is it more of a case of either 32767 or 65535 no inbetween? Jan 2, 2025 · tREFi is the counterpart to tRFC, with the value set determining how many clock cycles must pass before the next memory cell refresh occurs. 35v, went from 58-59 我先声明很多UP把trefi设置为65535，我不知道他们的依据是什么，很多人也是瞎比一填， 其实65535是DDR4时代DDR4的最大值，DDR5最大已经升级到26万多了 这俩参数是 trfc2越小、trefi越大，则延迟越低，如果你将trefi设置为最大26万多，则延迟几乎必定能到40多。 Dec 14, 2019 · Ok here a comparison on the same BIOS so the difference can be seen clearer. The RAM in RMA had tREFI = ~9000. This is why I tried with 65535 and it reduced the with about 5ns. Nov 3, 2024 · 换了9700x内存65535极其不稳定,原本的7500f换成了9700x，原先可以6000C30 65535，其他没动取自expo，原先可以稳定的，现在65535就蓝屏。 Nov 16, 2022 · dram refresh interval设置65535到底是啥原理？ AMD有么？ ,RT，之前用Z370的时候看超频这项都是设置65535，我内存超频没学会，这项记得挺清楚。 2x32GB DR Samsung DDR5 overclocking results for CMT64GX5M2B5600C40 on a Ryzen 7950x (with benchmarks at each step, tREFI scaling, graphs, temperatures, tips and a small review) Mar 20, 2024 · D5海力士adie16X2耐温性测试报告~,在D5内存超频上，鲜有人测试耐温，或者忽略内存对温度影响，这里更深层解忻超内存的一些影响因数之一，内存耐温性。测试平台：Z790I+146KF+海力士adie16GX2（体质中上） ,电脑讨论 (新),讨论区-生活与技术的讨论 ,Chiphell - 分享与交流用户体验 What I have so far. Since memory cells are sensitive to temperature, a longer wait time between refreshes increases the likelihood of data corruption. If consistently unstable, reduce tREFI to 32767 clocks. Oct 4, 2022 · But Just saying that going from tREFI of 50000 (1. Voltages seem to be their own issue. 45V VDDP: 1. Anything past 65535 will require a fan on the ram. You are ok. It's 65535 that can be temp sensitive and need cooling. Although X3D chips aren’t RAM sensitive, you’re totally gimping your system running timings this bad. I narrowed my ram choices down to these two dual channel RAM kits: Notes: Money is not an issue, I just want the best speed/capacity/overclock dual Oct 30, 2024 · Your TRFC is double what it should be, and Trefi is only 15,000 when it could run at 65535 Tras and trc are at least 5x higher than they should be too. Just looking for opinions if maxing the trefi value is safe. This guide is to supplement existing DDR4 overclocking guides whos knowledge was combined with the experience of overclocking the DDR4 kits listed below. Trefi 65535 一个让读写多两三千更好看、延迟再下降2ns，如果改前5. 40V would be where I would start. 也由此可见BDIE颗粒在时序参数上的优化。 （4）Refresh Interval（tREFI） 此值越大越好，可以显著提高宽带读取，推荐主板允许的最大值（32767或65535）。 此值增大会略微增加内存的发热，但可忽略不计。 （5）WRITE Recovery Time（tWR） Apr 22, 2025 · 文章浏览阅读2. Large interval here improves access latency as the memory refreshes less often, but as memory cells leak charge, it will get unstable very fast if the chips are hot. But does it really survive something repeatedly use same physical address? In programming language, this would be an array of atomics but I cant try because my RAM is in RMA. We would like to show you a description here but the site won’t allow us. Thanks Dec 24, 2023 · trefi盲目65535确实害人,主板华硕z690-p，内存海力士a die 16gx2 cpu 13900k es3之前心心念念想换屏蔽牌的z790，希望上8266，不过最近更新了一下bios，一下子能8000看风景了。 Sep 26, 2024 · Trefi is 100% memory temp sensitive no voltages will affect it. It's probably about 0. At the stock expo profile 6k 36-36-36-96 1. I've only noticed a bandwidth increase with my kit messing with tREFI. 1 DDR5 刷新操作的三种模式正常刷新模式[Normal Refresh]：所有的内存单元都会在一定的时间间隔内被刷新。REFab细… truetCL 24-40 depending on voltage tRCD 37-40 depending on voltage tRC 64-80 depending on voltage trap + tRAS = tRC, they don't do much for performance or stability on their own when the sum is less than tRC. Skill with different IC's as an example. However, risk of corruption/instability increases with higher tREFI. tRFC ≈ 500 + tREFI = 65535 = great combo (refreshes are rarer and each refresh completes quickly). Corruption to software only occurs (due to RAM OC) when there are RAM errors. The only way to know if the temps are low enough is to confirm stability of the RAM OC profile via memory tests. I'm running the PC 24/7, in a cool basement. 35V as a sweet spot that even a hobby enthusiast can reach relatively quickly and easily. I see most just raise trefi to 65528 or 65535. ASUS engineers and Gurus Shamino and SafeDisk suggest a starting point threshold of 45°C and the level 2 threshold at 55°C. For some reason my tREFI is set to max 65535 when I didn’t even change it. 如果你设置为最大值65535，那么就相当于把内存往上提升了时钟周期，跑分党可以试试，会有惊喜哦。 但是如果内存刷新周期太久了会容易丢数据，尤其是内存颗粒密度比较高的情况下（不过你倒是可以给内存加压哦，手动斜眼，AMD光头哥说过内存是按照3. 64 GB/s in reading and writing respectively with the latency down to 57. trefi，这个参数影响的是你内存的刷新间隔，俗称单次上班时间 很多作业会给你65528 65535，一般来说这是不会踩雷的设置 实对于zen4 6000频率的内存，70020是符合jedec规范整倍数的，但是有的主板用不了 AMD你可以这样算 3900*3*步进（仅适用于6000频率）比如说 70200 Mar 16, 2025 · tRFC 最低极限约为 480 tREFI 设置为 65535 时， 480 和 520 的性能差异很小 tRFC2 、 tRFCsb 参数无效 单面内存下 tRDRDSD 、 tRDRDDD 、 tWRWRSD 、 tWRWRDD 参数无效 小参过紧可能导致游戏帧率波动增大 受FCLK带宽限制，AIDA64表现不算突出，读写复制甚至低于6000频率+2200Mhz FCLK的 文章浏览阅读5k次，点赞23次，收藏34次。欢迎大家关注微信公众号: DRAM视界也欢迎大家订阅本专栏。本专栏会持续不断的分享DRAM相关的经验Refresh操作里面也有很多对timing的要求，ACT要求tRCD/tFAW, PRE要求tRP, tRTP等。REF要求tRFC/ tREFI/ tREF等等。那tRFC vs tREFI vs tREF之间是何等的三角关系呢？_ddr trfc Do the bits get flipped if their neighboring cells are flippped repeatedly, when they are not refreshed frequently? I see some people use tREFI=65536 to look better in benchmarks. I changed this value to 65535. It’s only 21C ambient in here even! Dec 24, 2023 · trefi是影响内存性能关键参数，但同时它对内存稳定性有很大关联，增大可以取得一点性能，但内存耐受温度会按提升而几何级降低，这个参数是非常考验内存体质，一般内存可以做到65535内稳定，耐受温度在65度左右，当继续增加此值13万－26万，耐受温度有可能 This easy comprehensive guide illustrated with images is for the overclocking DDR4 using several brands such as Corsair and G. 9-1. - I know the settings you're using are from my previous RAM setting, but after learning more about Ryzen and timing, the above should net you same performance with less stress on your RAM. 20V tRTP 10-14 depending on voltage tREFI 65535 tRFC 400-500 depending on voltage RRDS 4 RRDL 8 FAW 16 This is assuming you're somewhere between 1 Jul 20, 2012 · I want to do heavy Adobe Creative Cloud work, 4K video editing for a podcast, learn some 3D animation as a hobby, and to game my little heart out. The issue is that after 2 hours of TM5, my PC crashes. Feb 17, 2024 · We can see the designated tREFI interval after our 45c > threshold is 65535, and 55c > is 32767. Sadly tho from my testing a value of 32768 for tREFI yields a fraction of the benefit of 65535, maybe something like 1/8, doubling of 11430 is also a very small benefit, so I feel like trying to compromise isnt worth it, I either need to go 65535, or play safe at 11430. 610360876% 另外，D5的延迟没有D4那么重要，trfc和trefi也不会影响延迟，当你trefi设为65528的时候，trfc代表的是占据65528的百分比，65528相当于总工作时间，trfc是休息时间，trfc才多小啊，你设置500还是600都对整体的65535，没啥影响，微乎其微。 你可以理解成就像电容有自放电现象存在，充好了电放一段时间电会跑掉，DRAM也是一样的。 tREFI就是指为了维持DRAM的数据不丢失，两次刷新之间的间隔时间。 所以根据内存芯片的体质不同，tREFI的值也是不同的，不能无脑填写65535这个最大间隔周期。 一定要划重点, 视频播放量 95233、弹幕量 61、点赞数 2701、投硬币枚数 1227、收藏人数 5135、转发人数 329, 视频作者 陈墨啥都玩, 作者简介 可能是硬件圈里吉他弹得比较好的 唠嗑交流群：526061505（三群）326554924（二群），相关视频：tREFI并不玄学，内存tREFI 65535 Apr 20, 2025 · tREFI 65535 tRTP 12 tRRDL 10 tRRDS 4 tFAW 28 tWRTL 28 tWRTS 5 tRFC 500 or 480 適用A DIE 字數問題 我只能打這樣 你會調整的話 自己改這些記憶體參數 “只針對AIDA64 數據顯示提高不代表實際效能” AGESA 有對9000系列的效能微調過 記憶體反應時會稍微+5ns 這是7950X3D D5 8000記憶體 單CCD會略有不同 差距不大 這是9950X3D 這串是 I’m at 65,535 tREFI as well and have tried pressing the stock heat spreaders on better by hand to make sure they’re making good contact. 8 degrees celsius MAX when stress testing. On an 8 slot board with only 4 sticks, you likely don't get super hot. Previous one I had 131072 working, current BIOS it doesn't boot - 65535 clocks is fine. 3% busy) will likely not make any difference in benchmarks. 4 ns in AIDA64 memory benchmark after only changing tREFi to this value. 05V MVDD: 1. Considering it's an SFF build it's better to run trefi halved, at 32k or something, giving some room for the ram to breathe 50k is fine. (Unless you lower the dram voltages to make it run cooler but that most likely will affect the other timings stability). 28-36-36-36-64-102 2T 65535, 1. You could try setting trefi to max 65535 but that might cause heating issues with the sticks If I remember correctly, high tREFI cause less heat since refresh intervals are increased and refreshing produces heat. Dec 6, 2021 · Hoping to extract the most performance from your DDR5-based system? Check out this DDR5 overclocking guide to help tune your memory! Oct 21, 2023 · Posted December 7, 2023 You can try 65535 for tREFI and see how that moves the Aida latency. Mar 3, 2025 · 本文介绍AMD内存参数设置，包括tRAS、tRCD、tRTP等参数调整方法，以及tREFi设置技巧，适用于华硕B650重炮手+9700x配置，助力内存超频优化。 Dec 11, 2018 · 讨论12代平台超内存时的tREFI设置与优化建议。 Oct 29, 2020 · We would describe this setting with 3800 MHz CL16-18-18-38, tREFI 65535 and 1. So they will occur eventually and the average time spent refreshing is the same. The time spent refreshing can be calculated by tRFC/tREFI. Learn to overclock, ask experienced users your questions, boast your rock-stable, sky-high OC and help others! Jul 20, 2022 · 为什么trefi设置65535只用了16个bit来表达该值。 12代之前的平台tREFI最大值是65535（2的16次方减1），最大值限制是由于只用了16个bit来表达该值。 Nov 8, 2024 · 相较tRFC， tREFI会更明显的影响读写性能，但同时tREFI会更明显的影响内存稳定性，过高或过低都容易导致内存数据的丢失，所以除非你清楚的知道自己内存tREFI的安全阈值，否则这一项建议设为自动。 May 1, 2017 · TREFI is extremely sensitive to change in temperatures, so much so that I keep a fan mounted directly above my RAM when running 65535 24/7. As you increase the DRAM frequency you will become increasingly likely to run into some stability issue. These refreshes are postponed, not cancelled. 4w次，点赞6次，收藏34次。背景产生65535问题的原因LinearAlloc问题的原因Google提出的MultiDex方案MultiDex实现原理缺点美团的多Dex分包动态异步加载方案多Dex分包异步加载方案参考资料关于我背景目前来说，对于使用Android Studio的朋友来说，MultiDex应该不陌生，就是Google为了解决『65535天花板 We would like to show you a description here but the site won’t allow us. Is this safe at 50c and if not, what value should be used for daily use? How low can trfc go? Is there a threshold on trfc latency? Do trfc2 and trfcsb even matter? I heard they were unused on DDR4. 28 GB/s and 122. 8W，60ns，改后6W，58ns 优点 好看 中立 游戏用处不大 缺点 增加内存压力，温度更敏感 你用的是带K的，它G1 3800~4200基本都是能摸上去的，前提你"内存"能超，其次主板不是三线优化 12代用Win10进Bios把小核心关了，顺便手动把CPU主频锁全核 Apr 21, 2013 · As per title, how to actually set DRAM Refresh Intervals (tREFI)? Is there any formula to calculate this? Thanks in advanced. chi ,电脑讨论 (新),讨论区-生活与技术的讨论 ,Chiphell - 分享与交流用户体验 Aug 9, 2023 · DDR5램 tRRDS, tRRDL, tFAW 질문입니다 08-30 램 tREFI 65535가 위험한건가요? 08-09 CPU, 램 오버 할때 여유전압 (?)들 주시나요? 08-03 CPU 수동오버 클럭 출렁임 해결법 있나요? 05-08 Which you can change your trefi to 60074 or 65535, whichever is stable for you. General rule is 130000 requires temps under or right around 50c. Is there any benefit to running a tREFI higher than 65535 on an Intel (13700k) platform? My motherboard maxes it out at 262143. E. Jul 21, 2023 · Updated microcode on current batch of BIOSes behaves differently than the previous ones pertaining to tREFI and tRAS. There's limited headroom for RAM OC beacuse of locked VccSA voltage (under 1V) on Intel, therefore results are not so high, especially in Gear1 Below are the detailed results. 7% busy) to tREFI of 65535 (1. 25V VDD/VDDQ Dec 10, 2024 · 所以筆者馬上轉移目標至 7600 XMP + MEMORY EXTENSION MODE。 由於筆者用上比較頂的記憶體散熱，8 MM 厚的水冷級紫銅散熱裝甲，加上 120 MM 風扇以 2000 RPM 直吹記憶體頂部，所以筆者最終選擇 TREFI 65535 的 BENCHMARK MODE。 今天更新的内容是： DDR5的Refresh操作。DDR5的刷新操作是非持续性质的。且持续周期为tREFI。 13. Another culprit to look at is tRFC. 85V VDDP 0. Stock tREFI 12076 Tuned tREFI 65535 With that in mind, my auto timer for tREFI is 14828 and using this formula I went up to 37070 ( (auto value)/2) + (auto value x 2). This compared to 69. 0 ns and you can decide whether that is worthwhile. But if temps are the issue using a lower value for both work in hand. Ddr5 likes high trefi—- try first 65535 and hoes up to 262163 I believe… forgot it has been couple of months I tuned Right below that 255 All things overclocking go here. Jun 19, 2003 · 关于内存超频时tREFI设置的一点误区 178 Jun 4, 2019 · Before OCing RAM you should choose the RAM slot as the standard first, for 2 sticks will be A2 and B2 DIMMs. You can try upping your FCLK to 2100, majority of people can do 2100 FCLK. Then AIDA64 saw an improvement to 124. Pretty wack but it works. Apr 8, 2022 · 之前内存超频tREFI很多都是直接用65535就可以不管了，而12代平台提高最大值之后就有了新的可能性 考虑到tREFI的稳定性和内存温度强相关，有没有人测试过超过65535之后可以使用的tREFI值的范围 (这里可能结合频率用ns来表示比较好)和对应的内存温度是多少？ Current tREFI is 65535 as high as it goes. 7 with the default tREFi setting of "AUTO". . 42V tCL: 34 tRCD: 48 tRP: 44 tRAS: 52 tRC: 96 tWR: 48 tREFI: 65535 (max SPD HUB temp in With tREFI=65535, I turned on theHigh Bandwidth Low Latency mode and let it automatically optimize the more minor settings. G 400 tRFC and 65535 tREFI, 400/65535 = 0. May 29, 2017 · Raise tREFI to 65535 clocks, and test. Oct 30, 2024 · Changes made: tREFI 15554 > 65535 tRFC1 1177 > 500 tRAS 126 > 52 tRC 176 > 100 tRRDL 16 > 4 tRRDS 8 > 4 tFAW 40 > 32 tRP 48 > 46 tRCDWR 48 > 46 tRCDRD 48 > 46 tWTRL 40 > 32 tWTRS 10 > 6 tRDRDSCL 14 > 8 tWRWRSCL 34 >16 tRDWR 27 > 20 tWRRD 8 > 6 tWR 96 > 48 tRFC2 639 > 256 tRFCSB 519 > 220 cinebench 24 from 1420 > 1470 multi core 137 > 141 single TRFC information is also hard to get a good answer on. Profile "Low" Profile "High Jul 1, 2020 · tREFI = 65535 (max) → best possible for lowest latency, and stable on modern Hynix-based Corsair Vengeance modules. I found that I could get latency in the mid to high 50 ns range by only changing tREFi. These stability issues can be very difficult to find in stability testing so you Also stable in Y-cruncher. If you can max it then no real reason to mess with tRFC unless you want the e-peen to go with it. 38 vdd. 1V VDDIO: 1. FYI, the temps on the RAM went up to 55. 262140 requires them under 45c. tREFI set to max of 262143 can be made completely stable so long as the temperatures are kept in check. For timing try tREFI at the max value 65535 it reduce access time and improve READ and WRITE, this mean COPY also. CR: 1T tRFC: 400 tREFI: 65535 DRAm Voltage: 1. 5v的 We would like to show you a description here but the site won’t allow us. 95V 溫度跟功耗降低很多 讓電給核心 超核心時脈比超記憶體有效多了 也不用處理記憶體 Refresh commands however can be postponed up to 8 times on DDR3 & DDR4 and 4 times on DDR5. Skill Flare X5 2x32GB 6000Mhz CL30 I'm trying to get to 6400 CL30 or even CL28 if I'm able to. tWR 48, possibly higher at less than 1. Memory latency was 58. As a baseline, I enabled the Expo Profile but the custom changes I made are changing speed to 6400Mhz, DIV1 mode set to UCLK=MEMCLK, main timings to 30-38-36-40, tREFI to 65535, ARdPtr Apr 18, 2025 · 2025-04-18 09:39:46 我是這組的幻鋒戟版本 一樣8000 24X2的條子 直接拿xmp時序 只調TRFC 700 TREFI 65535 降頻到7800 應該沒幾個條子跑不穩這鬆參 FCLK對齊UCLK 走極致低電壓流 SOC 0. To tell you the truth considering I am running 8000 49-51 ns 13900ks va 7800x3d I can beat in gaming but hardly and sweating to do so. I've maxed my tREFI to 65535, but I got Samsung ICs on mine and work up to 70c with 1. I haven't played with timings at all I just set expo and some voltages that's it. TRRD_S (Ras to ras delay S)=4, TRRD_L (Ras to ras L)=6 or 4, tFAW (four act win time)=16, tREFI 65535 (don't use 262144 even though it can go that high, you're risking instant stealth memory corruption or BSOD if the RAM heats up), tRFC (needs testing depending on your sticksHynix and Samsung may work Feb 24, 2025 · I have a kit of G. Jun 20, 2023 · DDR5 trefi调高就报错,主板是z690 ux,前面内存只能到7400，但trefi可以调到130560也没啥问题，最近微星更新了ab3 bios。内存可以上到8000了，但trefi调到32767都过不了yc018，trfc参数呀根本压不 ,电脑讨论 (新),讨论区-生活与技术的讨论 ,Chiphell - 分享与交流用户体验 There are formulas to calculate the 'base' trefi, but a good value to start at without too much stress is 32767 (32768 if the maximum value is 65536 rather than 65535). Current Timings Dec 1, 2022 · While CPU and GPU overclocking is relatively straightforward DDR5 overcloking can be an utter nightmare. And the average performance increase of 19% compared to the XMP spec of the kit is impressive and definitely justifies the tuning effort. What Nov 10, 2024 · Tested on BIOS 0505 memory kit used: V-color Manta Xprism 2x24GB 8000CL38 TMXPL2480838SWK Hynix 24Gb M-die tests passed: Prime 95 Large FFT: 16+ hours Karhu: 36+ hours Ycruncher VT3: 2+ hours MCLK: 4000 UCLK: 2000 FCLK: 2000 synced VSOC: 1. 62V (FAN RECOMMENDED) MVDDQ: 1. Command Rate: Auto （1N和2N差距不大，自动即可） tCL: 20 tRCD: 22 （可以尝试降低到20，但测试下来出现死机、TM5报错3和4） tRP: 22 （同上） tRAS: 38 tRFC: 560 tREFI: Auto （改到65535虽然延迟会低个5ns+，但据说可能会导致丢数据，因此默认即可） 调整后有所提升，但差距不是 tREFI：AUTO-262143 注：AUTO此参数能够帮助耐温，MAX 262143为最大性能，可能会影响稳定性。 注意对于海力士ADie高频而言需要放松tREFI，不然对温度及其敏感，这里推荐65535（性能稍差）或者131070（稍微弱与262143） tWR: 48-XX 注：此参数每次加减为6，最低为48。 tRFC2、4不用管，Auto即可 tREFI推荐值：65535，tREFI越大性能越强，最大值65535，但会增加内存发热。 tWR推荐值：12 or 24，Bdie一般情况下12都能稳。 压低tWTRL、tWTRS可提升写入性能，大佬们都推荐这两个参数通过第三参数的tWRRD_sg、tWRRD_dg去控制，这里给Auto即可。 Jun 27, 2013 · - Intel Core i5-13500 - Kingston Fury Beast DDR5-5200 CL40-40-40-80 (OC @ 5400 CL34-39-39-78, tREFI = 65535) 1. Sep 19, 2022 · Should work without any voltage adjustments. Oct 7, 2019 · [内存]内存详细超频翻译转载【已完善】,转自@xiaxia686大佬的帖子，机器翻译加人工修改了一下，有一些错误之处，因为我对其中的一些参数也不太懂，请谅解，还望指正，我会慢慢修改完善，原文链接https://www. Also don't over-estimate those figures impact to the overall system performance. 8ns. 5V The two profiles are the best stable settings I can get in Gear1 and Gear2 respectively. With the above settings + tREFI = 50000 (not 65535), I get around 67-68ns latency (which is horrrrrrrrrible). mvliro hpmr epgr kffwd omwgy bwvvi ozino yxpqr ilvs ocoy ujtbgr fmyonxdz qazj anbxgc mdzbti