7900x pbo limits reddit

7900x pbo limits reddit. I would buy a new cooler and in the meantime disable core boost in your bios or enable PBO with a 65 watt limit, even at 65 watt limit your temperature will be higher as the The Ryzen 5000 CPUs that have 8 cores active per CCD will run hotter than those with only 6 cores active per CCD. 0-4. The system will lock up during the run but will be fine afterwards don't worry. Upon changing BIOS from PBO Limits = Motherboard to PBLO Limits = Manual and defining PPT, TDC, EDC values I'm now getting very different behavior. However, I have found that 1. Scalar is good if you limit PPT, with high scalar x10 I could hit 4. 5350mhz at 1. This is a 12 core beast chip. Enabling PBO can raise those values to the maximum supported by the motherboard BIOS. Let’s start at the top with the AMD Ryzen 9 7950X and the Ryzen 9 7900X. Boost override: +50mhz. When running Cinebench R23- I get a score of around 29k but my air-cooled CPU temps only get to about 90-91degC and PPT about 180w. keep the rest the same. You can also use the PBO Enhanced Mode with Thermal Limit to limit the Ryzen 7000 temperature. Odds are you're thermally limited, power limited or there's some other limit in place. 2v in games and 5300mhz and 1. Considering CPU temparature and Cinebench R23 performance, it looks 105W/125W Config TDP is good for my system. : r/ASRock. Very easy turn pbo on (only) set max boost 50 or 75 + and set negative voltage on cpu betwin 0. I enabled Eco Mode on my 7700X and applied -30 CO Do make sure you have a great CPU cooler to do this. Keep in mind, I'm prioritizing stability at the moment. Will it explode? That fan is designed to disapate 65 watts of heat the 7900x by default can use up to 170 watts and is designed to boost above 170 watts of there is thermal headroom. Using a core offset -10 to -30 it starts to hit 90c and the frequencies ramps up: in this case ONLY the EDC limit is first reached so if I gradually lower EDC value from 140 to 130. Nothing wrong with this, and will drop further when you put a heavier load. #amd #ryzen9 #7900x #pbo #eco #mode #power #limit #undervolt #undervolting #undervoltage 00:00 Intro00:11 Unboxing00:30 Board Build02:13 Bench Test System02: Oct 6, 2022 · While Zen 4 CPUs are designed to ride the ragged edge of their thermal limit at 95°C, MyKillK's 7900X is staying at a relatively-cool 75°C under "the most extreme testing," which sounds like 5900x - PBO limits off + -15 all core CO. PBO: Advanced PBO Limits: Motherboard PBO Scalar: Auto Curve Optimizer: All Cores, Negative, 25 Max CPU Boost Clock Override: 200MHz Platform Thermal Throttle Limit: Auto Curve Optimizer -30 (unstable) Cinebench R23: 15656 Max Temp: 82° PBO: Advanced PBO Limits: Motherboard PBO Scalar: Auto Curve Optimizer: All Cores, Negative, 30 Max CPU Ryzen 9 7900x EXPO II enabled, Memory context enabled, PBO Curve optimizer set to -20. The BIOS puts the two options on the same page for convenience. 7900x PBO Problems. I'll emphasize this again: Validate those settings before jumping into a game or whatever task you're planning to use that 5900X for. Slightly lower performance than PBO but better than stock (no PBO) with lower power draw. Ryzen master can conflict with bios settings. 0. 8ghz all core and under PBO it's 4. Boost clock: 3000. This will be long and sorry for grammar, new phone with a tiny keyboard haha. BIOS Version: 0805. ASUS PBO Enhanced keeps it capped at 70° with decent performance. I'm following the guide from Optimum Tech. after you set scalar to 10x then you want to adjust with the My R5 7600 non X runs -30 all core, on PBO enabled plus 200mhz. •. The 7900X offers 12 cores and 24 threads with a 5. For me B550/5800x manual -30 all core co, 132, 90, 130 nice n cool. The resulting Cinebench numbers put it squarely on par May 4, 2023 · the 7900x quickly gets to 95C and 5500Mhz and then stays very close to that temperature, namely around 90-95C but usually around 93-95C. Pbo limits are running stock at: PPT 142 TDC 95 EDC 140. I cannot seem to get my Ryzen 7900 (non-x) to give more than 80% of the benchmarks I am seeing others get in Cinebench R23 and CPU-Z. 5 limit, though, so maybe it was AMD realizing that staying lower and avoiding clock stretching was actually more performant, which would make them good guys, not bad. for VCore don't mess with it. Shouldn't it boost up to 95 degrees, they're designed to run hot, because apparently that's what everyone asked for. I was trying to follow the settings given in the video but I'm not sure what values to enter for the TDC and EDC limits in the UEFI. Sort by: ReallyDr. For reference, on my 5600 non-x, I have +200 boost override, 105 ppt, 65 tdc and 115 edc. 45ghz runs 19900. My processor will not draw more than 140 something Watts no matter Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. Stressed it for about a week using various tests and it's been stable. 3 (patches A and D). Everything seems stable after 3 30 minute tests. This is why AGESA is horrible. I tweaked the settings, used the PBO curve optimizer to negative 25 and set the PPT limit to 95W. The only setting I've really done is enable AMD Expo, and adjusting the fan curves to how I like. 5500mhz at 1. Power consumption goes up from 88 to 110 and peak core clocks are slightly higher. Mobo: Asus Prime X670-P Wifi. At 90w cpu power (or 125w PPT LIMIT) Clock speed caps at 5g (instead of 5. 45V then it actually needs 1. 100. Mar 10, 2023 · AMD Ryzen 9 7900X3D Gaming Benchmarks — The TLDR. Fixing Ryzen 7000 - PBO2 Tune (insanity) Watch on. Using afterburners user fan profile otherwise 0 rpm just doesnt work for some reason. The 7800x3d is purely an 8-core CPU with 96MB v-cache, while the 7950x3d is an 8-core CPU with 96MB v-cache and an additional 8 cores with regular 32MB cache. were used, the CPU's longevity shouldn't suffer. My temp in games stays at 70C as it used to before that setting. 1 all core. Put power limits to motherboard limits for a start, note those values. Another way to adjust the values is to have HWInfo opened and while running a stress test, watch to see which values hit 100%. In fact, your performance should be better. Max clock went from 5. 19-1. 5GHz base speed. PBO is already at +200 and scalar at x10. During Cinebench R23 it's hitting the thermal limit with an all core boost of 4860-4900Mhz for the duration of the multi core benchmark for a score of ~18350 Thermal Throttle Limit affects PBO by limiting the amount of boost so that the temperature doesn't go over the given value, which is in Celsius. Turn on PBO if you want but honestly factory clocks are where I'd leave it. Enabling PBO seems to do nothing, and from what I'm reading it should turn my 7900 into a 7900x with high temperatures. 04 and 0. The PPT/TDC/EDC settings of the PBO Enhanced Mode can be seen via Ryzen Master. Give consumers the choice. My curve is per core, -5 on the best core, -7 on the rest. . I've used Cinebench R23, CPU-Z and 3Dmark Time spy CPU as BMs to test various PBO limits but get pretty much the same results from 90-120 EDC. Even though I used a scalar, the voltage under load remained lower than with stock settings and since stock PPT, etc. Odd thing is, it ONLY happens when OCCT Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. The clock speed begins to fluctuate once it reaches the max temp of 95C, between 4700Mhz-5500Mhz, up and down, down and up. By default, PBO2 wants to start CCD0 at a roughly 1. For science. My 7900 does 5300 mhz with -30ish pbo and 105w setting at 70-75 celcius. Ryzen 7900 with PBO limit same as 7900x kept at 77Celcius. but for F version, Im not My 3700x runs 3. So unless somebody absolutely needs those extra 2-5% at the expense of a 66% higher CPU power draw, electricity cost, loud ventilation and reduced components lifespan, I think the 7700 is probably a better Well, ryzen master is good for quick configuration, monitoring and testing, but from my experience, its better to reset bios after you are done with it and put all your settings directly in the bios. Plus x variant is now cheaper. e. D) silicon lottery. PPT = 250 , TDC = 240 , EDC = 120. Yes it's stable. voltage : amd overclocking. Keeping PPT and TDC lower can help thermals, with Factory clocks are already quite high on 7900x, meaning if you push them higher you get very little gains for quite a bit more heat and power usage. something ghz on at least 2 cores and 4. true. PBO2 (Zen3/Zen4) also has a subsection which is Curve Optimizer, which can be used for undervolting or overvolting, either the whole CPU, per CCD, or per core. Watch on. Per Core. it fixed the problem. Yes I checked. 32v, CinebenchR23 stable. However I'm getting only around 28k on cinebench with the above settings, at 200w/80c. You will get better performance, but if you don't push the CPU to max and use it for daily, it be no different to a full 7900x since your not pushing it to the max. My methodology: Step 1: find your baseline: To determine the base performance from which to make your adjustments, simply enable PBO2 then set power limits to 'motherboard' and scalar to '1x'. It also disables low power state. 5900x doesn't draw more than 140 watts. I tried a quick and dirty all-core -18 and I noticed some instability (mainly in Hogwarts Legacy but also in Genshin) so I decided to try and use Ryzen Master and its auto curve optimizer. When I look at HWinfo and I leave it open for a few You can max out pbo limits if you have sufficient cooling, but that by itself won't get you best performance. I retested PBO, found that changing thee minimum processor power state allowed me to use PBO enhanced mode 2 with no issues. The video shows TDC:480A and EDC:640A for his 7700X. I set PBO2 Tuner to -20 on all cores and noticed that my voltage, temps and power comsumption are higher than without PBO2. Specs: Ryzen 9 7900x Asus ROG Strix B650E-F Gaming Motherboard Corsair Vengeance RGB Pro 6000mhz 2x16 gb CL36 EVGA 3070 XC3 Black Corsair Rm850x I’ve gotten some success lowering the throttle limit to 80 degrees and also setting a negative curve of 30, but I wanted to set an auto throttle temp and in its place put the power limit. Build: CPU: Ryzen 7900. I'm looking at either the SilverStone Technology RL-KR01 or Thermaltake UX100 Also don't forget you can run the 7700X in Eco mode with around 20C temps drop for barely any performance loss and much less power consumption. My 5900x is at 180 ppt 180 edc and 125 tdc and I'm at 1650ish single 23000ish in cinebench23. I've recently just spent hours on hours tweaking my 5950x's PBO. CO: -12 all cores. I'm not sure if this is the expected behavior in or not. 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. A) because it can not endure 105Watt tdp for a long time? B) because its pins are different than 7900x and burns motherboard? C) just marketing. You can just change the temp limit in bios or limit your power draw and use CO. The default limits for 105W CPUs: 142W PPT, 90A TDC, 140A EDC. Yes at idle. Steel Legend X670E. Description of Original Problem: I have recently obtain 7900X combine with ASUS X670E-A. Single core loads refuse to boost above 5. PBO: Advanced, Scalar 4x, PBO Limits: disabled (= use CPU default), AutoOC 0Mhz While performance increased, it only did so ever so slightly (1-3%). Why is Ryzen 7900 rated for 65W tdp? Discussion. Now it draws only 95 W and the peak CPU temps are 68 C. QUESTIONS: Having trouble to get over 5. Undervolting 7900x. 5 Minute Overclock: Ryzen 7 7700X to 5747 MHz. 25) Temps went from 88-90c to 55-57c in my current system with 2x360 rad custom loop (again, not controlled environment. Skill FlareX 32gb DDR5 Gigabyte 6750xt OC Gaming Superflower Leadex SE 1000w WD SN850X 1 TB. Having trouble to get over 5. All core probably won't work. Personally I'd just go with whichever is cheaper, while the intel option is slightly faster, the performance difference is minor. I have Precision boost override enabled and I have the power limit set to 600 watts and the rest of the amperage limits set to 500. The stock 5900X has only 142W power limit and 95A amperage limit which imo is way too conservative. 9-41c idle rn but it’s in a full tower. Both CPUs have a 170W TDP, which doesn’t mean all that much considering their power limits are not implemented the same way AMD’s 5000 series and earlier CPUs Hi, I have a 7900x in a SFF PC currently so I did my PBO curve optimizer for Negative 15, and then did a PPT limit of 130w, and it CPU shows this The 7900X already auto pushes itself as fast as your cooling will let it. You may be able to get away with just the per-core max boost clock limit. Do the same with performance biases disabled and note it again. Troubleshooting: Tried a bunch of different PBO modes, still settles into 180 ish watts during multicore testing. in mw2/wz2 it stayed in the 60's c hitting 76c on a 360aio while boosting to 7950x Overclocking / Undervolting Results. And 1566 for Single core. Scalar: 4x. Overclocking has become almost moot with the latest gen CPUs. I have an ASUS Prime X670E-Pro Wifi with the latest BIOS and I'm trying to limit the power draw of my CPU (7900x). 45V to run all core when running a benchmark app. Intel is faster in quite a few tests and is also cheaper with the Ryzen 9 7900X retailing for around $80 more than the Core i7-13700K. i fucking hate the 95c shit since i want my computer to have good performance up to a certain point, but stop before it gets to the point Intel is still suck on a ceiling of 8 full cores per CPU module (plus 8 helper mini cores for some tasks) - AMD are now selling 96 core Genoa modules. Curve Optimizer – Undervolting Ryzen 7000 Processors Jan 6, 2023 · As shown in the above shot, MSI and other motherboard vendors allow you to change the TDP and power limit on the non-X chips as well. My 7700x at 5. On gaming, it will fluctuate from 1. Computer Type: Desktop. 7950x is still really good even down to 105w. All cores Enable it with a boost. CPU 5 - 11 = Negative 20 offset. Here is the one without PBO2, stock settings: Screenshot. 5ghz all core boost in gaming on my old 3900x. Here's my system specs: ROG Strix B650e-f 7900x G. Also, you can run 76-60-90 with FMAX (max boost speed) set at 4000 and -30 all-core to run games below 40ºC and under 40w keeping 99,9% of the max performance, it's a highly binned CPU and Oct 6, 2022 · While Zen 4 CPUs are designed to ride the ragged edge of their thermal limit at 95°C, MyKillK's 7900X is staying at a relatively-cool 75°C under "the most extreme testing," which sounds like Turn off any performance bias boost other than PBO & XMP. Temperatures are pretty bad. After rebooting, launch HWinfo64 and scroll down to the section indicating the PPT, EDC, and TDC limit percentages. If you on Précision boost overdrive Vcore negative offset will help drop temperature with performance gain without having to restrict PBO limits. I lowered the wattage and changed the max thermal to 85 which has decreased power consumption but the temps still hit 95 under load. Turn pbo limits back on. If you push it to its limits (148W at full power), you get maybe 2-5% more performance than at 89W which is the full power of the 7700. Motherboard: ASUS X670E-A. Both can conflict as it happened to me. Max CPU Boost override = 200Mhz. You can also undervolt it a bit to get some (or even all or more) of that performance back. I think that the default value is whatever the I used on my 7600x these settings. Its better to use ryzen master or bios. Ryzen Master setting -30 in PBO after a per-core analysis. Not worth it. 45GHz regardless of PBO settings with all other cores sleeping. /r/AMD is community run and does not represent AMD in any capacity unless specified. If you're reaching thermal limits then thats your true limit after per core offset. Definitely not just the CPU hitting boost limits as the fused PB2 maxes for me are 5. 7900x, -30 all core, PBO enabled for 7+ weeks now. 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. CPU: RYZEN 9 7900X. Yes I checked it's enabled in bios. 25v at CinebenchR23. ) I have a 5600x in my sffpc build using a phanteks shift xt and a blackridge cooler with AF12X25 fan. 5ghz with my 7900x. hand building is the cheapest way to get a computer without pre installed bloatware, finding good information on how to set up bios is hard since what you want from your computer might be entirely different than what i want. 775, but higher multi core scores and same single core scores. I discovered that adjusting "Minimum Processor Power state" in advanced power options stopped these symptoms and stopped kernel events from being logged for over 2 weeks. Also used the finger method when applying thermal paste. I'd love to see the actual power usage, I believe it is possible but I just don't know the maximum power the 7000 cpus will suck up for no extra gains. That's what I did with my 7700X (PBO limits 88000/75000/150000 and CO -30 on All Cores). But the interwebs says it’s built to operate at 97c so I think you’re good regardless. 7900X. Pbo limits set to disabled keeps the 3 values at factory limits defined by the cpu, set to motherboard for crazy high limits set by the mobo manufacturer related to vrm supply limits, set to manual to define your own. PBO Scaler = 10x. Started at -10 and increased by 5 after each test. Scalar = 2x. Folks were saying they got higher benches despite the 5. pbo settings: mode : advanced. 7GHz base. Feb 9, 2023 · This is a thread to continue the escapades from this thread of my, and anyone else's efforts to undervolt their CPU with a PBO curve, to achieve equal or better performance as stock, while running at far lower temps and power consumption. Yes during games. PPT: 120 (I think it was pulling 90w at full load despite being 120w configured) TDC: 80. That board should already have PBO enforced on BIOS. 5K votes, 443 comments. Power limit +15 Memory 2650 (Benchmark stable up to 2760) standard timings Undervolt: 1020 (Can go lower but theres little benefit. My 5900x will use 270-280w if I set pbo/ppt limits high enough, there is no extra gains for the extra power over 200w, and the same all core max frequency can be had at much lower voltages. You're not underclocking the CPU, only running the same clocks with less voltage. You probably won't tell much difference in performance unless stress testing, and probably heat generation using PBO2. It needs the juice. curve optimiser all core -16. I cool it using a NH-U12A. For what I understand they both can be adjusted to be one another, non x with pbo becomes x, x variant becomes non x with eco mode. The 7900 XTX reference card fits with tons of room to spare, even with stock PSU cables! PSU is mounted sideways since I don’t need room for a SATA SSD. 6 ish on all core. That, combined with setting a per-core max boost clock of 5850 on ccx0 and 5500 on ccx1 allowed me to enable Medium Load Boostit with full stability on my 7900x. PBO is just stock operation with some limits adjusted. 065 (depends on your cpu tier i guess) If your cooler can keep the cpu around 80 ish or below will boost to 5. I can’t get lower than 1100mv in driver to stay stable while gaming. Just trying to achieve maximum performance with lower temps. Good cooler can be noctua nhd15 but will spread the heat to your graphic Oct 14, 2022 · The 7950X has 16 cores and 32 threads with a whopping 5. Oct 4, 2022 · Ryzen 9 7900X - Stock Settings vs Ryzen Master ECO mode vs Custom PBO LimitIn this Video I'll Show You Productivity and CPU Gaming Benchmarks of AMD Ryzen 9 At stock PBO my CPU temp rises to 95 C at 145W but that's normal. PBO limits are 95W/80A/95A. Lately I've been toying up with PBO2 with my 5600X. tldr. AUTO (CPU decides the PBO) Enabled (Board decides the PBO) Disabled (PBO disabled) There can be other options like, manual, aggressive, eco mode. Here comes the interesting part, the Aida64 FPU temperatures dropped from ~90-92C* to a more reasonable 80-82*C. And here is the one with -15 on all cores, set with PBO2 Tuner PBO allows running the CPU with higher power and current limits, potentially allowing it to boost higher and longer compared to stock. CPU Power Limit on Prime X670E-Pro Wifi. What I recommend is to look at voltage during ST and MT tests. PPT Limit: 88000 (AMD stock 105W recommended settings: 142,000) TDC Limit: 75000 (AMD stock 105W recommended settings: 110,000) EDC Limit: 150000 (AMD stock 105W recommended settings: 170,000) But no results. At default settings, this system earned a score of 37,811 in Cinebench R23’s multi-core test. 7900x sitting at 38. OC Report - CPU. PBO Enhance Mode + Thermal Limit. And I'm trying to Set up PBO + Undervolting. The same happens with -15 on all cores. 775GHz on the best cores. I’m currently undervolting my CPU using PBO 2 in order to lower temps but have had no luck. Some reasons for choosing the former idea would be; 64gb of cl16 3600mhz ram, a trusted am4 platform, but with the big con of 0 upgradability cpy/ram wise. Curve Optimizer has been stabled with 24 hours of core cycler, 1 hour of large data set on occt, and left overnight on idle to see if it'll crash. In Cinebench R23 after the 10 minutes test I'm getting 15118 for Multicore. 110. TDC: 135W. 20v is sufficient to hit this using vcore offsets (~ -150mV offset). The Number One Gaming forum on the Internet. SergeiTachenov. Boost Override: +200. AIO tubes fit between RAM and PSU when the case is closed. Upon setting the TDP to 170W (same as the X series SKUs) and enabling Precision Boost Overdrive, we see the Ryzen 9 7900 gain a performance boost of 15%. But I checked the settings for my 7600X in Ryzen Master, those only show 110A and 170A respectively. But people see bench numbers go burr and don't listen to reason. xDoWnFaLL. TDC has almost zero effect and it seems like PPT just needs to be set high enough. 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. Most likely will immediately PBO limit to 65/88w (whatever the non-x is at) and shove a low profile cooler on. As for power limits it's either stock limits for demanding games (Spider-Man) or 122-82-124 for most modern titles and 114-75-115 for less demanding stuff. Intel also enjoys cheaper motherboards and also DDR4 memory support which means overall, a Core i7-13700K system can be a lot cheaper than an equivalent Ryzen 9 7900X one. Per core, I have it the 2 best cores of my 5700x sample: Core 1 and 2 -10, and -20 for the rest of them. 5v at light loads. Hi, I have a 7900x in a SFF PC currently so I did my PBO curve optimizer for Negative 15, and then did a PPT limit of 130w, and it CPU shows this: It is currently hotter than I would like, 80-95c still when under full load and I would like to bring that down at least to stable 80s and no 90s. Changing the PBO Limits does nothing it's like the option is just a frontend without any backend. -18mv helped like 3% with cinebench score but it won't get hotter that 89°. 1 to 1. 120. Ryzen 9 7900X3D: Corsair H115i 280mm water cooler, default power limits, DDR5-5200 (Coupled Mode); Ryzen 9 7900X3D PBO/UV: Corsair H115i 280mm Help Request - CPU. pbo scalar at x10. I suggest: Voltage = Auto. : r/Amd. Tried some manual static oc aswell. Jan 16, 2021 · If RM or Hw64 reports 1. No I haven't had any crashes. Going against AMD's advice and leaving PBO on but starving the chip by undervolting it by 100mV did drop Cinebench R15 1T score from 203 to 195 points, multi core score was ~3200 pts. PSA: Be careful with PBO. ago. A few of mine are at -30, others are at -25 and -20. yours sounds like a voltage issue, maybe try to put the voltage to "amd overclocking" ? i was able to get mine to boost to 5. I did a quick benchmark to give you guys an overview. Check Task manager, and shut down all unnecessary programs. Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. Also running bios 0805. GPU: XFX 7900XTX. The longer boost tends to be more beneficial for cpus vs aiming for top boost speed. AMD Ryzen 9 7900x. But without a vcore offset and with the max pbo curve offset of -30 (x 3v for a max load offset of -90mv), the lowest vcore at PBO max boost is still 1 Oct 7, 2022 · For comparison, we also tested each chip using the default PBO settings. EDC: 120. Here's what I came up with. 38v to 1. Curve Optimizer = on. I'm running a lapped Wraith Prism with Noctua paste and CPU temp never exceeds 81C. Start at -10 and work from there in -2 or-5 increments. • 1 yr. Have a look and if you wish to push it further, change from Auto to Enabled. Reply reply. When you're done with PBO (weeks of testing each core by 1-2 offsets at a time finalized with 12h corecycler per core) you can try reducing EDC slightly and test between if you go down in Each step is around 3-5mV. But if you insist on having your 5900X maxed out on PBO (with proper cooling, mind you), I'd use: PPT: 200W. Yes I gained performance. 1. hydraxx747. That alone cleared up 90% of my instability with MLB. 90 I can see frequencies go up to 4450mhz and temps go down as low as 79c. Here's my results and my run on CB23. Dec 13, 2022 · Go to topic listing CPUs, Motherboards, and Memory. But since you're also running a sff system my suggestion is to let the limits at stock, use curve optimizer to undervolt and squeeze out last bit of performance, and tweak your fan curve to keep constant below 75C, and really ramp up hard above 85C. Keep Vcore on auto if you're using PBO. I. Probably due to cooling, board, and bin differences. I’m using a 7900X in a Strix X670-E mobo I know this is perfectly fine and within spec for my CPU Hey, I'm running mine with PBO Advanced Enabled, with a Curve Optimizer of -28 all cores. 6Ghz boost speed and a 4. 40v (seems to depend on core). If you have a 7900x and an Asus x670e-f and a 650watt PSU supplying just one of the Apr 22, 2023 · Use the board BIOS to do your tweaking. Limiting pbo values helps with temps and therefore will likely increase performance a little bit more. 4V which is normal. I changed stock settings to manual pbo, with 128,95,125 limits, that got 28,003 in cb r23, then I tried asus enhancement and limited to 80c, it gets higher cbr23 scores and same fps, higher wattage and lower vid max than manual settings. Did a quick test on Ryzen 7900 with different PBO settings and Curve Optimizer and see how the performance scales and CPU temperature. • 2 days ago. RAM: 32gb Corsair Vengeance 5200 mhz. pbo limits disabled reverts it to stock cpu settings which is like 142/90/140 though. Depending on your chip quality, Vcore can go near or at 1. With PBO, my 7900X maxes out around 5350 MHz all-core with Cinebench R23. I need something that uses the stock plastic latch system. The 7950x3d needs to be controlled by a driver, which may be a reason for the performance difference between the two CPUs. Benchmark. I think it just does not give it's best. Update: now running ac Valhalla on 1440p ultra high 60fps and sitting at 51c. PPT is the power drawn from the socket, TDC is sustained current limit drawn from the VRM, and EDC is the peak current limit drawn from the VRM. 7800X3D PBO Settings sharing and benchmark results. PPT/TDC/EDC: 230/150/150. So the 5800X and 5950X will generally run hotter than the 5600X or 5900X. 4. 85ghz down to 5. CPU 0 - 5 = Negative 15 offset. PBO's PTT, TDP, EDC = 395, 255, 230. Asus PRIME B650-Plus. PPT, TDC and EDC are all three separate thermal limits, and once you understand that the CPU will stop drawing power once ONE of them is hit, you can kind of figure out where/how your CPU is drawing power and how to limit it. 6 ghz using BLCK overclocking at 101,75 . Many enjoy longer boosts with an undervolt vs an overclock which provides a shorter boost length at a faster speed. I have a 5900 X on the x570 Tai Chi from ASRock. 7GHz boost speed and a 4. If you're wanting to fully tune the system, look up the pbo limits for 105w chips and download hwinfo64 and see how the board behaves compared to AMD guidelines and note it down. All components are brand new. (Around ~75C on the CPU package with EK water cooling with package power around 180W) With a lighter, non-AVX workload, it basically stays at 5500 MHz all the time. 7950x at 65w eco mode outperforms 12900k in cbr23 mt by 5% while drawing 160w less (~140w in anandtech review, but +16% perf over 12900k) There are some variances in 65w eco mode performance, pcworld hit 28655 but anandtech hit 31308 (+10% perf). Guilty-Sector-1664. If you want to give your CPU an easier time, you can also set a lower temp limit, or lower PBO limits. I started undervolting my 7800x3d and made it to -26 all core offset using bios curve optimizer and I started noticing this odd flickering when using OCCT cpu all core bench. My general usage is gaming, music recording, some video editing, but nothing too CPU intensive. Discussion. I know the rating is 230w and 95degC but I'm wondering why my CPU is not reaching its limits. 7900x Asus B650 PBO Settings. Same issue with a 7950X and X670E running AGESA 1. Yes during single core. TIA. Run cinebench with real time priority, it will minimize the effects of random background services and give more consistent results. I know AMD recommends 2-3x or keeping it stock, typically. 2x16 DDR5 5600Mhz CL36 Corsair Vengeance rgb white. In this scenario 142/95/90 (so only with EDC lowered) temps are acceptable Hey, i think your issue is different than mine. CPU decides what it needs. With 105w and CO, its more easy to maintain a steady clock and temp since its not being fully pushed. As far as I’m aware choosing auto will load the default one. EDC: 180A-200A. In other words, if you input 75 as the value, it'll boost the cores until the temperature reaches 75C, then maintain whatever boost value keeps it at 75C. Self immolation is (probably, no AMD statement yet) because VSoc. In general the whole experience feels a bit like I own a prerelese product. RAM: 64GB TridentZ RGB DDR5 6000MHZ CL36. . Overclocking. bx st gy eh ht id hk fk be et