Pbo scalar reddit. So I leave most things on auto.

 

Pbo scalar reddit. EDIT: This is largely nonsense after testing. 47v. What I think happens is that while it can help the core hold a boost clock longer, it also generates more heat. But new agesa the PBO is already nuked on Zen2. 25-4. So enhanced mode 2 is definitely a branch of PBO. F11 goes to 200w, F34 caps at 165w or so. 450GHz on CB20. Max clock went from 5. • 3 yr. 775, but higher multi core scores and same single core scores. PBO - Advanced PBO Limits - Motherboard, also tried to set manually PBO Scalar - Auto, 1x,2x,3x no difference Curve Optimizer - per core, -25,-25,-25,-20,-15-15 Max Boost Clock Override - 200 MHz Thermal Throttle Limit - Auto I also tried resetting BIOS and setting PBO values only in AMD OC section, no positive result. Is it worth running scalar? After some testing on how AMD's PBO feature works, I found out that if you Set “Precision Boost Overdrive Scalar” to manual at 10x, the CPU voltage gets dangerously high with only a CPU test “System Stability Test” in AIDA64. PBO Settings: Advanced PBO Limits = Manual PPT Limit = 120 Precision Boost Overdrive Scalar = Manual Precision Boost Overdrive Scalar = 10x Curve Optimizer = Negative, 30 (Not sure what the limit is, max is ideal I think) Max CPU Boost Clock Override = 0Mhz. Apr 17, 2020 · PBO Scalar relates to how long the VCore should be held elevated when the CPU is boosting; higher scalar values result in a longer hold-up. In my research it holds voltage longer with PBO to hold the higher frequency? This comes at the cost of temperature obviously but when i set a X10 scalar it doesn't just hold higher voltage it applies 0. I have heard that it is for changing what voltages go to the CPU, but if thats the case then why do people use a voltage offset instead of just finding the lowest stable PBO Scalar setting? Load up BIOS defaults, go into PBO menu and enable advanced. After rebooting, launch HWinfo64 and scroll down to the section indicating the PPT, EDC, and TDC limit percentages. 34ghz all core but dropping down to x1 I can't get past ~4. Cinebench R23. 45v CL14. The scalar messes with the FIT target; higher the scalar multiplier, the higher the voltage. PPT/TDC/EDC: 230/150/150 Scalar: 4x Boost override: +50mhz CO: -12 all cores Keep in mind, I'm prioritizing stability at the moment. With PBO 2 turned on, my PC was noticeably noisier. If I use Asus PBO enhancement level 1 90Celcius setting, It will bost to 5. 80GHz (because I use +150MHz boost override) Multi-core, PBO disabled: peaks at 60C, 4. then you want to turn on the PBO Scalar to 10x as this will allow the CPU to boost for longer and it will add more voltage for the CPU to boost higher. 75 Ghz all-core in gaming vs if I try to use any override/OC or other scalar setting it doesn't go as high or do as well. Once you do this, boot into Windows, open Ryzen Master and start CB23 multi thread test. Single core boost is 4. Auto performed the best for me, but if you want to try to tweak this, I'll mention when you should do this. to get the most out of your Ryzen 5000 CPU is you need to do is set your Manual PBO Custom Limits or select Motherboard option. In the advance section of PBO, set PBO limits to motherboard or manual and set values that you won’t realistically hit. As you can see on the first picture, PBO scalar is auto. PBO Scalar is broken on 3rd gen, so this only applies to 2nd gen Ryzen. 2x should be fairly safe but 10x is really pushing it. This one has the scallar and auto oc which xfr doesn't have. I personally use pbo all core -30, temp limit 80c and this gives me the best score 18740. Setting LLC to Standard instead of Auto or Normal let me run -40, and I managed a run of 18169. 04, Chipset VDDG 1. 45v and a single of 4. 1 or -0. 4ghz at 1. I'm not 100% sure what the 10x literally translates to, but generally it will give the chip an additional 70 - 100mv in constrained scenarios where Idk why you would say that, it's not correct. Temps aren't an issue. PBO Limits -> Advanced -> Motherboard Boost Clock Override -> 200mhz (max) PBO Scalar -> Auto (1x?) Curve Optimizer -> -27 all cores (other than the 2 previously mentioned, same exact CO settings as screenshots below and tested in OCCT + y-cruncher. Don't know where you're pulling the 105W power draw nonsense from, but it's exactly that, nonsense. Number presented in scalar is multiplier for delta for that voltage, so, i/e if it's 10mV, x2 means 20mV, x3 means 20mV etc. We need HWInfo, Ryzen Master and prime95. New agesa amd overclocking is better. 1v to lower temp and voltage, allows the above settings (PBO Scalar and Auto OC) to boost longer. I have a 5600x undervolted and want to use PBO scalar to keep higher boost clocks as I have thermal headroom. PBO for gaming only is really better for higher clocked parts like 3700x and up since they can boost more. 275 all core boost in games at 1. 2ghz single core and 4. While running Cinebench multicore, one of these limits will reach 100%. PBO "Auto" is usually the same as "off" but may increase boosting (ie the scalar value) opportunistically up to 2x, but should still respect the 142W socket limit. 1ish @1. 475-4. No: because PBO still adheres to silicon fitness, and unless you're also running a voltage scalar, higher PBO limits alone should not meaningfully reduce the CPU lifespan. I can get an all core manual overclock of 4. 0, so enable PBO and set it to your platform's limits. 025 Cpu-z 10K/709, cinebench r20 9000/654. But what you are saying does make sense, there is a fundamentally different behaviour here that DOES match an all-core overclock. Posted by u/Easy-Syllabub-5845 - 1 vote and no comments So this is how my 5600x performed on max pbo + 10x scalar + Optimize curve -15 All core boost 4600mhz while single core 4850mhz Stock PBO All core boost = 4475mhz Single Core boost = 4975 Stock Clocks All core = 4200mhz Single Core boost = 4650mhz My final parts are arriving soon and I'm prepping for undervolting the 5800x CPU. 5v more all the time to core VID I have a custom water loop with CPU under its own 560mm rad. Go into AMD Overclocking - Precision Boost Overdrive - set it to Advanced. The changes are small and can be used to stabilize high single core boost setups. Dial Dynamic Vcore (DVID) down to -. Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. 0. Stable DRAM set. You can try adjusting the PBO voltage scalar setting, as that might let you boost higher but verify uplift, as this also increases heat. At 1-core loads, you can expect voltages north of 1. The PBO Scalar interacts with the FIT limit of the cpu, which is the internal health management system of the cpu which will lower voltages when needed, given the workload and operating temperature. Dec 13, 2020 · But after a few weeks, I turned PBO 2 off. Okay just so I'm understanding correctly, per my motherboard (MSI B550 model) I shall go as close to negative 30 as possible. 38v. So without PBO 2, my CPU can run at 100 %, and I barely hear the fan (Noctua NH-U12A). 45, at 4x 4. skid00skid00. What I read was that scalar controlled how fast, and how long the CPU Jun 12, 2021 · Guide - Fully optimise your PBO. 5ghz now it shifts let's day negative 30 co, 1280 is your fake X and it solves for Y equals 5. Curve - 30, cpu voltage offset +0. To determine the base performance from which to make your adjustments, simply enable PBO2 then set power limits to 'motherboard' and scalar to '1x'. Curve optimizer ON; All Core Values -30 Control Mode: Auto OC PBO Scalar: OFF Even after being off or asleep it idles at about 65-70° until I Re-Apply the Profile (Re-Enabling PBO) where it decreases to 35-40° Does PBO Scalar Reduce Temps? I though the Opposite. 4 volts, often clo I have ryzen 7900, can I safely set the scalar to 2x or 3x and adjust ppt to 120 watts or 170 watts (along with 125 amperes for the currents edc & tdc)? Or will it require just 1x scalar to not burn? For 3x scalar, what is max voltage at 95Celcius considered as safe? I want to use my cpu for 10 years. 2ghz on single cores momentarily. 269-1. PBO: Advanced PBO Limits: Motherboard All other limits: 0 (basically auto) PBO Scalar: Auto Clock Override: 200 MHz Throttle Limit: Auto Curve Optimizer: All Cores, -25 I also set Vcore LLC to level 4. 490mv on light loads (same as scalar x1), max temp was 50c, please note that I use CTR hybrid profile for multicore tasks so Scalar at 1x: 11745 Scalar at 4x: 11895 Scalar at 10x: 11929 I don't intend to use this for 5-10 years. 65GHz In single-core, the difference in frequency and temps is minimal. 2. I know on gigabyte there's XFR section for PBO and then Amd overclocking. 0375, SoC LLC mode 1. cinebench boost all cores up to 4. That basically takes anticipated silicon reliability from 10 years to 1 year. ago. LLC mode 2, EDC 70, PPT+TDC 4096, Auto PBO overclock auto (basically 0), temp limit 70, CPU switching frequency 1000, over-under current both 400. Setting scalar to x10 i see no difference in cinebench but an all core boost in games of 4. When scalar is not safe is when using the EDC bug, which already boosts voltage, scalar just makes it worse. Sep 18, 2020 · In that kind of BM small variations are hard to find without multiple runs, and it takes a lot of time each run, so it just wasn't worth it. 6ghz. Anyways obviously we all want to utilize curve optimizer and PBO as efficiently as possible without degrading our chips. 3a. The cinebench all core run saw me reach 84°C so I toned it down a little: PBO scalar auto, +100, llc level one, platform limits 280/240/230. So if you select enhanced mode 2 then go to the other PBO menu you can see things like scalar etc. My only fear is losing performance as time goes by lets say after a year or two. 65GHz Single-core, PBO enabled: peaks at 60C, 4. 2908 Pc specs Asus x470f Ryzen 7 5700x 64gb ddr4 3600mhz cl18. Here is my PBO settings if you want to give it a try with your 3700X PPT 100W TDC 60A EDC 80A PBO Scalar X10 this effects lower core workloads i noticed in fallout 4 for example that each time i upped the setting my frequency went up now its at a full 4350-4375mhz and in games that use 2 cores i'm almost always at 4375-4400 Scalar allows longer boost by pumping in more voltage. 14. I have researched PBO to make sure I understand how it works, however I have no clue what PBO Scalar is. have indeed changed. People say PBO scalar degrades your CPU as it increases voltage, will it degrade my CPU even if my temps stay low? Pbo on, scalar to auto or 1, long term high setting causes degradation, well reported too. All core scalar 2-10 4. CPUz Scores: 9600 / 680. BCLK OC and stabilized settings: Bclk 105. Single-core, PBO disabled: peaks at 58C, 4. 3-4. If you stick to just PBO, XFR section will have better boost on old agesa. 3V is probably doing way more damage than the scalar ever could. Temp: 83c on CB20/23 (would be 93 with normal paste, which is toasty but OK according to other people) Single Core Boost: 5. That's why I settled on 5X scalar for my system. Get the Reddit app Scan this QR code to download the app now For pbo-scalar=auto,1x,2x,3x with MSI-MAG-x670e-Tomahawk, Aida64latency fluctuates between PBO "off" means 142W peak socket power. 13. Scalar at 2x-10x I see 1. That's stock behavior. 2ish @ 1. Set prime95 burn like this: PBO itself is pretty simple. Tbh 1. 1. I have heard that it is for changing what voltages go to the CPU, but if thats the case then why do people use a voltage offset instead of just finding the lowest stable PBO Scalar setting? what I've tested myself, pbo has a minimal effect on temperatures and power consumption, at least in cinebench. Observe TDC, EDC and PPT values and check what % of the max you are hitting. - Undervolt vcore by 0. If this is correct, I can see that it should be used judiciously. 356v in cinebench and a 4. x) AMD Ryzen 5 5600G with Radeon Vega 7 Graphics All core boosts to 4. I would tune your PBO, negative 7 seems relaxed. FYI, boost +200 Mhz will only allow a higher boost frequency for single-core if allowed, so most likely why you're not seeing a performance uplift. But I'm guessing the max mode 4 probably uses very high PPT, EDC, TDC values, probably sets scalar to x10 and maxes out the Auto-OC Mode 4 may be unsafe. in other programs pbo helped like occt/prime clock speed increased from 4 Anyone have additional tweaks or resources they can point me to to mess around? 7950x w/ PBO undervolt by 100mv, 32gb DDR5-6000 EXPO CL30, Kraken X72 (without AM5 brackets), Gigabyte Master X670. Under PBO, leave the scalar at Auto. If you have observed the voltage behavior, the CPU will lower its voltage in relation to a load, unrelated to power or current limits. CO (Curve Optimiser) set to per core and each core is tuned to its most stable value while using "Boost Override" set to 200 mhz. Seems like Scalar does nothing for me, and LLC Standard seems to let -40 work instead of just -35 So after googling and searching around for answers regarding PBO scalar settings, what are the real implications of using scalar x10 vs x5 or x1? I have a 3700x and using x10, it allows me to boost up to 4. Its looking that Ryzen Gremlins are not allowing me to get consistent results, looking like just leave PBO on AUTO and tweak CO . psa pbo scalar I have two different rigs one is a 3800x b450 and one is a 5700x b550f Both are relatively expensive builds one more so than the other. 4Ghz more often than stock and I'm happy with performance, I also have LLC set to mode 3 on my MSI x570 MPG Gaming Plus, voltage doesn't exceed 1. System configuration: Gigabyte B550M DS3H (v1. I wasn't sure about silicon health management and PBO scalar. 4 Multi: 6288. 1Ghz. I have my 3700X PBO OC set up as follows. This means it will keep the voltages during PBO higher for longer, multiplying the default length of time anywhere from 2x to 10x. Launch HWInfo, Ryzen Master and prime95. Curve - 20 (all cores) cpu voltage offset none. 74°C without PBO 2. It does do something. I fried a 2700X in around 2 months by setting an asus board to pe4, which I found later sets the scalar to 10x. Lowered DRAM/FCLK PBO Limits Set to: Motherboard Scalar Set to: Auto Curve Optimizer Set to: Disabled Max CPU Boost Clock Override Set to: +200Mhz My scores for Cinebench R23: SC: 1576 MC: 14102 CPU-Z scores: Single: 645. 1 I feel like those scores are pretty low compared to everyone else who owns a 5800x. All core stock, 4. ive set pbo to "enhanced mode 2' in bios which set scalar to X5… It regularly hits 4. Then adjust core optimizer co values per core towards -30, the closer to 30 on each the better. It allows for higher voltages, but it does not effect how long the CPU will remain at those voltages. I had a run of 18106 at -35 with both LLC and Scalar set to Auto, but -40 crashed. 5 and getting I've been playing around with my 3700x settings, I realised that when I set scalar to x10 I start getting that juicy 4. 3-4years tops. However I'm getting only around 28k on cinebench with the above settings, at 200w/80c. 9ghz, for some reason they don't want to raise it higher, no matter what I try to do. 46 ghz single core and ~4. My theory is, the CPU and firmware is much smarter than I am at boosting itself. Boosts to 4. PBO + Auto OC yields a 4. After stabilizing tight RAM OC, this is how I tune the PBO: - Set PBO Scalar to 10X, Auto OC +200 MHz. 225. But no one knows whether or not you have silicon which will tolerate slightly higher current for 8 months or 8 years, and no one can say for sure whether or not your If you're going to use PBO you should experiment by seeing which scalar value gives you the best performance. 35ghz at 1. Running BOINC at 100 % on all cores was 84°C with PBO 2 vs. is there a way to permanently “apply” the Profile even after Windows Boot? I've recently just spent hours on hours tweaking my 5950x's PBO. My clocks peak at around 4,881Mhz (PBO -30 all cores) and UserBenchmark's test says my relative perf is 106% (PBO -30) and 108% (Stock), "performing way below expectations (4th percentile)" with poor scores being 113% and great ones being 122%. In Curve Optimizer, start with an all core undervolt of -5. 1 ghz all core. Curve optimizer shifts the graph plotting f(x) =y where x is voltage and y is frequency. PPT limit doesn't affect PBO other than hard limit so set it to 300 in BIOS and leave it. 494 volts peak. I'll just say, with pbo scalar at 10X, you're going to have a high chance of frying that chip. Even if I set manual: 1x, Ryzen Master still show PBO Scalar: OFF? Ryzen Master v2. In this example it shifts the x axis meaning if you had a max of x at 1250millivolts and solved for Y equals 5. 024 offset Memory is 3200 CL14 BDie @ 3666 1. 8ghz with an occasional jump to 4. EDIT: just to clarify, this is on a 3700X system. 16. PBO Power Limits to Manual and enter what you're comfortable with it drawing. after you set scalar to 10x then you want to adjust with the PBO scalar auto, +200, llc level one, platform limits 280/240/240. 1ghz all core boost at 1. PPT 300 / TDC 230 / EDC 10 / Scalar x4 / Voltage Normal - . Iterate between STABILITY TESTING (HIGHLY TRICKY. Multi Core: 17589 (PBO -30 All cores) Jan 30, 2021 · With the PBO Scalar set to 10X, we saw 125 W of power consumed during an all-core Cinebench run with temperatures up over 82 degrees Celsius. Set PBO scalar to 10x in your BIOS (or you can adjust it, test all scalar settings if you want, maybe you find one that works better on your chip). Sep 15, 2023 · PBO limits improved game 1% lows tho, I used 190/190/190, just coz for some reason having them all the same worked the best idk. 375ghz at 1. 2, SOC voltage 1. At scalar X1 there's no voltage delta cause multiplier is 1. 15ghz on my 2700, by comparison PBO tops out my cores at around 3. Also oc'd BCLK since since PBO algorithm also scales with it. PBO limits are set to motherboard so they aren't low as you are suggesting. 55, avg of 4. 15GHz Multi-core, PBO enabled: peaks at 80C, 4. Here's what I came up with. So I leave most things on auto. 85ghz down to 5. - Use EDC bug: Set EDC = 10, PPT and TDC to 200 (or any similar numbers, these are just upper-bounds). I feel I have a handle on some core concepts of the undervolting process / testing using negative values in the curve optimizer, however I'm still fuzzy on the PBO Limits and scalar. 142W/90A/140A is default, but I personally use 142W/110A/130A on my 5950x because TDC is what limits my all core loads. 06 After benchmark score, 6136 at 71c: hey, so ive got R5 3600 watercooled with 280mm AIO, mb b450 msi gaming plus max. 3. But at the cost of higher temperatures. 7GHz during Timespy Extreme CPU test. But in the end that extra voltage is something that matters, even though it's expected according to AMD. Yes, there was some performance gain. What pbo scalar should I use Troubleshooting I have a Ryzen 7 5800x3d and i am looking to boost the performance of it through pbo, what scalar for pbo should I use that will provide good performance increases and is safe for long part life Do make sure you have a great CPU cooler to do this. 45v. Don't forget to use offset voltage to lower the voltage set by PBO and thus lowering the temperatures which can result in better performance due to the CPU not heating up quite as much. Polygon Labs develops Ethereum scaling solutions for Polygon protocols, collaborating with ecosystem developers to offer scalable, affordable, and eco-friendly Web3 infrastructure. 28 1T. 5, Chipset VDDP 1. Or until a 512 thread cpu gets cheap as In my testing with a Ryzen 5600 (cooled with a Dark Rock 4) and PBO scalar turned up, it ended up increasing the CPU temp as a result of the higher voltage, and that then pushed the CPU frequency back to where it would've been with PBO scalar off due to being in a higher temperature window, but now consuming more power and pushing out more heat. Now with the 5700X limits still improved 1% lows, nothing else, scalar instead does a lot, improved clock speed under heavy/light load, with 1x my cinebench all core was 4. Curve Optimizer is part of PBO 2. With the scalar dialed back to 2X, temperatures topped It may also mess with PBO scalar and AutoOC I don't think there's a reference chart from MSI for what parameters those modes are using. 3 ghz on this bench (cpuz) and has -15 CO, and 2x PBO scalar but will crash and reset entire pc randomly so I don't use it (It is the first iteration of it on this new bios, waiting for more bios updates)Wanted Anyway, in that experience which is mine I've found that a good manual overclock generally outperforms PBO. Try -18 all core, offset the CPU voltage with -0. I've read / youtubed explanations of the PPT / TDC / EDC settings. my temps under load stay around 65. 75, scalar 10x and no override/OC and see how it goes. Yikes, I think I got a bad chip. cculwl zwjilj netl tjiep xjw goscw lqwu ihrs nbtb irfijm