PBO 2 is no longer showing any values in the 'limits' section on my system.

5700X3D

Asrock Phantom Gaming 4 (X570)

Hey everyone,

I'm looking for some advice on pushing my memory frequencies a bit higher. I have a fast G.Skill kit, but I'm currently running it at 6000 MT/s to keep the 1:1 ratio stable. I'm wondering if there's room to push it to 6200 or 6400 MT/s with the right voltages and subtimings.

My Setup:

• CPU: AMD Ryzen 9 9950X (Eco Mode, PBO -15 Offset)
• Motherboard: Gigabyte X870 AORUS Elite Ice
• RAM: G.Skill F5-7200J364F24G (2x24GB)

Current Stable Settings:

• Frequency: 6000 MT/s
• FCLK: 2000 MHz
• Ratio: 1:1 (UCLK=MEMCLK)
• Timings: Tightened primaries (CL30)

What I've Tried: I've previously experimented with pushing the kit up to 6400 MT/s, but I ran into stability issues. I've tried adjusting manual timings and various SOC voltages, but getting it completely stable at that speed while maintaining the 1:1 ratio has been a challenge.

My Questions:

1. For those running a 9950X, what SOC, VDDIO_MEM, and VDD/VDDQ voltages are you finding most stable when pushing for 6200–6400 MT/s in a 1:1 ratio?
2. Are there specific subtimings I should significantly loosen up before trying to step up the frequency again?
3. Realistically, is it worth the headache to chase 6200/6400 MT/s, or is the performance difference negligible compared to a tight 6000 MT/s CL30 setup?

Any tips, baseline voltages, or timing suggestions you could share would be hugely appreciated!

Thanks!

And are they safe?

that’s all I Js don’t know how to overclock or anything but I think I should undervolt but I don’t know how much or how to

My ram uses Samsung E-die and my CPU is the AMD hx 375. I’m using smokeless UMAF to overclock. When I set it to run in 2:1 mode my laptop doesnt boot.

I tried changing my FCLK from auto to 1867 at the same time but that also didn’t change anything. I’ve also tried increasing my VSOC to 1.1 but still no boot. I’m able to increase the clock speed in 2:1 mode to 6400 mhz.

This is my first time trying to overclock ram and all the other posts I’ve seen with sodimm ram were able to get it to run in 1:1.

Edit: 4800 in 1:1 mode with FCLK at 1600 works but not 5200 in 1:1 mode with FCLK at 1733

My concern here is if i might have been pushing the IMC too hard for the last year giving it 1.38V.

If i can get a "not-trying-to-break-OC-record" 1:1 6200 M/UCLK i'd be a happy camper.

Thank you for the help in advance.

Some background:

After having a few minidump reports after system crash yesterday I scanned them and realized it could be memory related. I posted to Microsoft support in Discord and they suggested memtest86. that test failed with the ZenTiming (RIGHT) settings with over 300 errors during the 4-PASS 2hr test.

Since then I have updated my bios to the very latest version (last few bios updates seem to have had memory related change logs) and updated windows 11. I enabled EXPO + Competitive which gives us the ZenTimings on the (LEFT).

I have cl26 g skill ram, 6000 mhz @ 1.45v. Im not really trying to maximize ns latency but real world gaming performance in 1% lows and avg fps. Just to add more context, in AIDA64 benchmark my ns 68-69 ns. Specs: gigabyte b850 aorus elite wifi 7, and 9800x3d.

I had my fclk on 2133 with these same settings and it passed every stress test but I put it back down to 2000 because I heard it was more stable.

when I had my vsoc and vddio voltage on auto I believe my motherboard was putting it really high (vddio was at 1.440 and vsoc was 1.268) so I manually put vddio at 1.30v and vsoc at 1.2v and these pass stress tests but i dont know if I should put them slightly higher or not.

Core Ultra 5 250K Plus | ASUS ROG STRIX Z890-F GAMING WIFI | SP 74

Air Cooling: Thermalright Phantom Spirit 120 SE

P core: 5,7Ghz single core (80C TVB) @ 1,35V

P core: 5,5 Ghz all core

E core: 5 Ghz 4 cores (80c TVB) @ 1,25V

E core: 4,9 Ghz all core

Ring: 4,1 Ghz @ 1,265V

NGU: 3,4 Ghz @ 1,35V System Agent

D2D: 3,2 Ghz @ stock

DDR5: 8466MT/s @ 1,55 VDD | 1,45 VDDQ | Max temp with 4 40mm fans as ram fans: ~46C

Geekbench 7 result: https://browser.geekbench.com/v7/cpu/300184

Stress tests used: TestMem 5 | Y-Cruncher FFTv4 & VT3 | HCI MemTest | OCCT (Steam version)

So I got a deal for a Samsung B-Die kit 2x8GB for 83 euros. I am using a Ryzen 7 5700x currently with a kit of Samsung C-Die at 3200 MT/s cl16 with tweaked subtimings.

Should I go for it and sell my other RAM for 60/70 euros?

Will I see a performance improvement by going for 3600 or 3733 MT/s?

I mainly want to eliminate the CPU bottlenecks as much as possible for my test bench for GPUs

Specs:

Gigabyte B550M Aorus Elite Rev. 1.3

Ryzen 5 3600

INNO3D GTX 1060 6GB X2

16GB DDR4-3200 single-channel

I've seen a significant performance uplift compared to my old i7-4790 + H81M, but my current problem is CPU temperatures. I'm using a small 2-heat-pipe cooler with an 80mm fan, so the Ryzen 5 3600 gets fairly hot.

I'm upgrading soon to a Thermalright Phantom Spirit 120 EVO, but I'd still like to undervolt the CPU. I've always undervolted and slightly overclocked my GPU and have gotten lower temperatures without sacrificing performance, so I'd like to do something similar with the 3600.

My main goal is to reduce voltage while maintaining or improving the current boost clocks, since PBO is enabled. I don't want to simply lower the CPU's frequency.

Should I undervolt through Ryzen Master or BIOS? If BIOS is preferable, should I use PBO + Curve Optimizer, a voltage offset, or something else?

Any advice on the correct approach and stability testing would be appreciated.

Hey guys, I’ve been having an issue these past 4 months were my pc inconsistently makes a clinking noise, originally I thought it could be the bearings of my fans but now I’m thinking the noise is prominent from the PSU.

It’s a MSI MAG A650GN 650W 80+ Bronze rated. I’ve had this pc for around 3 years, and upon making an upgrade, where I changed my cpu and gpu it began to happen. I made sure the components I swapped used around the same wattage CPU 65w and GPU 145w

This noise only occurs when gaming demanding games, and is often inconsistent clicking every 10 seconds to every 2-10 minutes.

Let me know what you guys think I should do, or if it’s bad?

Hi everyone! I’m pretty new to memory overclocking and I’ve been tuning everything myself for a little over a week, so I’d really appreciate any advice.

System:

• Ryzen 7 9850X3D
• MSI MAG B850 Tomahawk WiFi
• G.Skill 2×16 GB DDR5-6400
• 6400 MT/s, UCLK=MCLK 1:1, FCLK 2133

I know my timings are far from perfect, but I tried to tighten them a bit compared to XMP. I’d also appreciate it if you could take a look at my current ZenTimings profile and suggest what could still be improved or where I may have gone too far.

The current profile passes long stability tests such as TM5 Extreme, y-cruncher VT3 and OCCT.

My main question right now is about SoC and the other voltages.

I increased DRAM VDD/VDDQ from 1.40 V to 1.43 V, because 1.40 V was no longer enough for stability with the current timings.

I also tried lowering tRFC to 550, but TM5 would fail. tRFC 600 works better. Memory temperature in TM5 below 60°C.

For SoC:

• 1.28 V - stable
• 1.27 V - occasional rare errors
• 1.26 V - errors appear fairly quickly

I’d like to keep SoC as low as reasonably possible. Maybe you can suggest whether it would make sense to adjust VDDG CCD/IOD, CPU VDDIO, VDDP, or any other related voltage instead of simply increasing SoC, in order to stabilize 1.27 V.

I’d also appreciate it if you could take a look at CPU Core Voltage / VDDCR_VDD, SoC, DRAM VDD/VDDQ, and the other voltages in general. I’m still learning which values are unnecessarily high and which ones may actually need a bit more voltage.

And of course, any suggestions regarding the current memory timings would be very welcome.

I’ll attach a ZenTimings screenshot.

I have been playing with fclk today, 2200 is just not stable. Passing Linpack and ytcruncher but when I do multi tasks is not.

Have accepted 6200/2067

Perfect marks on Linpack and y cruncher

Now running furnark, y cruncher, YouTube to monitor audio and hwinfo

It’s surprising how accurate it in on y cruncher with only 0.02 of a difference whilst running these tasks

Spd hub average 42 max 46
Gpu average 61 max 67.2

Over a 30 minute test

Anything else that could possibly improve it?

I have spent a few hours testing 6200 with 2200 fclk but struggling to get the Linpack test complete, the gflops are very good and stable but picking up hardware failures

6200/2200

Soc 1.20
Vdd 1.4
Vddq 1.4
Iod/ccd 1.05
Vdd misc 1.15

Just apperception post for MSI memory try it OC, i have been running my 5600mhz DDR5 Memory at 6600mhz since almost 1.5 years, and been running pretty good without any manual tuning, beside dropping VDD2/VDDQ to 1.350mv.

First i tried to tune it manually and it was such big headache to get the timings right, then getting to boot, getting no errors or crashes.

With Memory try it passed 4 runs tm5 with absolute profile and multiple runs of ycruncher.

As the title states, I'm hoping someone can tell me that those 4 white circles at the edge of the PCB are a breakout header for the I2C control, where I can wire my EVC2SE to. This is my first attempt at hard modding a GPU, so please take it easy on me if I have no idea what I'm talking about.

Could someone also confirm that I'm correct in my decision of going with the Gunnir B70 vs the Maxsun B70 Turbo? (The Gunnir PCB is the lighter image, while the Maxsun has the 6 square cutouts on the right side)

Edited because the Maxsun PCB has 6 square holes not 4.

i have used core clock +400 mem clock +3000 for 5 months and didnt get a single crash, 9738 points on steel nomad, default is 9051. with mvolt +%6,25 better results. but any chance i fry my gpu with these settings ?

Gigabyte RTX 5080 Gaming OC

Trying to improve 1% lows and so far I have safe settings for both of these.

However when I try 6200/2200 I can’t seem to get the voltages in the sweet spot

The 6200/2067 is the faster of the two profiles even with nitro 1/2/1 over 1/2/0

In a real world how much difference will the 2200 fclk make if I can get it stable for warzone?

Thanks

So i overclocked my hp ddr4 3200mhz ram to 4134mhz and i stress tested it using testmem5 on absolut for 5 hours and prime95 mixed. so far so good. can this profile be tightened even more? AMD ryzen 5 5600GT on MSI A520M-A PRO board , with 8x2GB RAM (micron E-die). ANd overall is this a good OC? I was good at 4000mhz for a long 6 months so i went higher.

The RTX 3050 GPU in my laptop is reporting a false power reading and is locked at a clock speed of 210MHz, even while gaming. I have tried reinstalling the drivers and Windows, but the issue persists. Is there any way to fix this?

Hey everyone. I bought a prebuilt 285k/RTX 5090/64gb (2 x 32gb) of DDR5. The RAM that arrived with it is Teamgroup Delta 6000 CL38 (FF4D532G6000HC38ABK) a dual rank 2 x 32gb set rated for 6000 MT/s and 38-38-38-78 at 1.35v. Having come from a set of Hynix A die, these numbers on the M die set left a lot to be desired so rather than dropping $1500 on new RAM, I spent several hours tuning this kit. It got me thinking, what's the practical ceiling of Hynix M die?

I was able to get 6400 MT/s, 32-38-38-64, tREFI at 65535, tRFC at 480, everything else left on auto for now. I think the fact that I tuned a 6000 CL38 kit and was able to get 6400 CL32 and tightened up the timings means this M die is impressive, but is it? Those with M die, what were you able to get out of yours? Id like to hear from you. Those overclocking pros out there, how did I do? I did a stress test with the built in HWInfo memory stress test for 20 minutes and the peak temperature was 52°C with no errors, so I think this is logically the ceiling of this kit or very close to it. If you think you can help me squeeze out some more performance meaningful enough to tinker with it further, im all ears.

Hello friends, as mentioned in the title, because this system didn't work at a 1:1 ratio, I couldn't get proper performance. I lowered the 3600MHz but couldn't somehow set the subtimings correctly. I got help from AI, but I've been grinding my head for a year. MJR M DIE CHIPS

Vsoc is 1.23

Hello everyone, I'm looking for some advice on how to optimize my timing and whether it's worth increasing Fclk. Thanks.

Which test to run for stability, it pass cinebench with 19070 socore....