http://www.3dmark.com/sn/16819384

So I've managed to improve my score yet again with the higher +4800mhz mem clock and messing with power limits (and by that I mean increasing board input current to 100A lol).

Btw it never goes anywhere near 100A obvs it just uses whatever it needs which is around 40-45 in my tests. I've also increased the power limit to 550w, pass that my thermals get pretty unsightly as I'm on air-cooling.

Do not attempt to increase board input current unless you have a good PSU and look out for all relevant temps carefully otherwise you will get black screens and more serious issues.

MSVDD is maxed out to 1.28v but yet again it never goes near that, there is a hard cap of 1.15v for me just setting to 1.28v allows MSVDD to aggressively go to 1.15v constantly.

I've also shown my Speedo is at its stock I've heard messing with this isn't rly worth it I might mess with it at some point but eh.

I also show my combined iddq of 33550 which could be a sign of good silicon quality. I know top 1 has about 36000 iddq. The less leakage the better.

Overall I'm basically getting thermal diffed by the top 4 since my average is 72C with a clockspeed of 3390mhz😂

make sure u read the last image ( core v/f curve )

*cool ur cables ...

*only for water cooled cards or for chips that stay below 60c ...

*the cable must be balanced enough so u dont pull higher than 9.2a

a very important note ...

video clock overclocking is for experienced folks

u can test it via virtual desktop "godlike mode" h.264+ 500Mbps on the quest 3 or via any wireless vr headset or with any type c vr headset that uses compression

it will lower the encoding letancy by a 1ms from 5ms to 4ms at +600MHz

but will fail with Adobe Premiere Pro when the gpu bus reach the 100% usage after 2/3 min

it will freeze the pc "hard lock" even with the "nvidia studio driver"

keep in mind ,,, in my specific case with the ultra 9 285k it required me to pump the
NGU voltage rail "VCCSA" to "1.45v in bios VCCSA LLC level 4" while i used to run 1.42v just fine
just to make the "Video clock offset +250MHz" stable !
*arrow lake is a very complicated chip ( everything is connected in a way that any small change here or there can destabilize the whole thing lol )

so u may have to do the same

stop raising Video clock until u see the vr purple artifacts or Bitrate artifacts insde the headset

or when the pc become unresponsive during an effects rendering on the Adobe Premiere Pro

if u don't want the hassle just leave it off

video clock offset : off

video voltage offset : off

the Other settings have 0 affect on the CPU.

and the card now boost higher earlier that's it ...

the performance increase was 11% from the stock 5090 astral OC "gaming wise"

if u have the regular astral u may see 12%/13% performance increase from stock

the settings had a slightly higher Currents +0.02a and slightly higher NVVDD Power +18w

the power spikes can reach 606w at 1000ms of report rate

the gains u will see it when u r not power limited which is 99% of the time

for x bar / core / memory stability testing, a regular 4k/6k gaming on a flat screen or pcvr is the best way u can test it ... use "hwinfo64 graph"

and see the last drop in the voltage for the specific "voltage rail / frequency" when the gpu crash

in our case the GPU Core Clock / GPU Core Voltage ( NVVDD )

like the imgae : https://imgur.com/a/v5sH4Sr

and just lower the specific unstable point "2 point before and 2 point after" lower them all by a -30 MHz

and repeat until the whole curve is stable

the power limits r triggered only in rare occasions "only when benchmarking"

gpus are not cpus ... power limiting is a normal thing on gpus "thanks to nvidia" ... but can affects cpus significantly ! which is another topic. so u r good

a note :
never do higher than a 600w. on one connector !
u really dont need higher than 600w. i mean u got the "5090 matrix" performance at 600w by just adding a +50mv = 0.050v on each voltage rail
so if u want to do a higher power to raise the frequency even more do it on ur own risk.

for anyone curious :
room temp 25c.
water temp 27c-35c under load.
liquid metal : TG conductonaut
mVolt+ v0.50.5
Driver version 616.92 "studio"

Has anyone tested this? Does anyone know if the knew drivers breaks msi afterburner and the applied undervolt?

MSI Raider GE68 HX 13VG

I have an undervolt of -0.130v on the i9 13950HX, BCLK @ 101MHz, and a basic RAM OC from JEDEC 5600MT/s CL48 1.1V to 6000MT/s 36-38-38-77 1.25V. For some reason I can't raise the turbo ratio higher than the stock 55.

Can I still improve on this?

Not sure if anyone else is having this issue. Not sure if mvolt is causing it or what.

I reached my high score of 8095 back on 617.14 but since then the drivers haven’t performed the same on the same overclock especially the last driver. Today I updated to 621.01 and it seems back to somewhat normal.

Hey everyone,

Just wanted to share my manual memory tuning results for the Ryzen 7 7800X3D.

Since AM5 prefers 6000 MT/s in 1:1 mode (MCLK=UCLK), I decided to downclock an Intel XMP kit to utilize the huge silicon headroom. I am using the (CMP32GX5M2X6600C32), which is obviously a premium SK Hynix A-Die bin.

Instead of running unstable 6600MHz XMP profiles, I set the AI Overclock Tuner to Manual and custom-tuned the timings at 6000 MT/s.

My daily settings:

- Frequency: DDR5-6000 (FCLK 2000 MHz)

- UCLK Mode: UCLK = MCLK (1:1)

- Voltages: VDD/VDDQ manually locked at 1.40V (factory spec)

- Timings: 28 - 38 - 38 - 126

- tRC: 68

- tREFI: 65535

Notes on the tuning:

1. CL28: The A-Die scales effortlessly down to CL28 at 6000MHz using the kit's native 1.40V.

2. tRAS 126: Followed Buildzoid's finding that tightening tRAS to 30 on AM5 triggers the memory controller to introduce internal latency penalties. Setting it to 126 keeps the data stream completely unblocked.

3. tREFI 65535: Locked at the maximum for optimal frame pacing.

Stability:

Passed a full 30+ minute OCCT Memory Test (Preset: Heat) with 0 errors. Max temps during the heavy synthetic test peaked at just 51°C thanks to the massive Dominator heatsinks. In normal gaming, they stay well below 45°C.

Let me know what you think!

Aorus 5090

Not interested AT ALL in gaining any more performance than stock (my stock steel nomad is 150xx)

Any addition benefit (and how to) with MVOLT+ to reduce more power than MSI AB?

Like underclock XBAR, SYS, or else?

DDR5 overclocking seems to involve a lot more than just getting a system to POST and pass one stability test. A memory profile can survive a benchmark but still throw errors during longer workloads, gaming, or after several cold boots.

I'm curious what validation process people here actually trust for daily-use settings. Do you rely on TM5 with a particular config, Karhu, y-cruncher, OCCT, or a combination of tests?

Also, how much importance do you put on cold boot testing and checking WHEA errors compared with simply running a memory stress test for several hours?

I'd be interested in hearing your testing routine, especially for tight DDR5 timings where stability can be harder to establish than with a straightforward EXPO profile.

For those who have spent time tuning their cards, what result surprised you the most? Did you manage to maintain stock performance at significantly lower power, or find an unexpected sweet spot between temperature, voltage, and clock speed?

If you share your results, include your GPU model and the voltage, clock speed, and power limit you settled on.

I've been playing around with memory overclocking on my ASUS ROG Crosshair X870E Glacial (BIOS 1103) and decided to do some testing with all four DIMM slots just for fun.

Specs:

• Ryzen 9 9950X3D
• 96GB DDR5 (2×48GB)
• 48GB DDR5 (2×24GB)

I've been having pretty good results with memory OC so far. My 96GB kit runs at 6000 CL28 with tuned subtimings, and I recently managed to get my 48GB kit running at 8000 CL36-48-48, passing Karhu without errors.

I figured I'd experiment with all four sticks and see what happens, not expecting any crazy speeds with 144GB.

Here's what I'm getting:

• A2/B2: Works perfectly.
• A1/B1 only: Stuck on Q-Code EF, won't POST.
• All four DIMMs (144GB): Stuck on Q-Code C5, won't POST.

I've tried clearing CMOS and running default settings, but no luck.

What's interesting is that I previously had a Gigabyte X870E AORUS Xtreme AI TOP with the exact same CPU and RAM, and it actually managed to train and boot with all 144GB installed. It took a while, but it worked.

I'm not really trying to achieve any particular overclock with four sticks. I'm just experimenting to see what the board and memory controller can handle.

Has anyone experienced something similar with the Glacial or other ASUS X870E boards? Is this just how ASUS handles memory training with four DIMMs, or is there something I'm missing in the BIOS?

xbar is key, used 1280mv on xbar to achieve this score with 1140mv on core +410 offset using the nocuta bios. +445 xbar +440 sys, 750w limit, 80a input limit - on water. 85C hotspot max temp 72C core max temp.

Finally broke 10k on my FE. No shunt, no BIOS flash, just the stock 108% power limit.

Hardware

• RTX 5080 FE (ASIC 67.3% in HWiNFO)
• 7800X3D
• Sapphire Nitro+ B850M
• 32GB DDR5-6000 CL30
• Driver 617.42, mVolt+ 0.50.5

mVolt+

• Core +400
• Core voltage offset -25mV
• No V/F curve, stock curve + offset worked way better than a flat curve for me
• XBAR +570
• SYS +450
• NVVDD/MSVDD ratio 1.0
• Mem +3000
• Power limit 108% (390W)

Results

• Steel Nomad: 10,120 (fans at 100% for the run)
• Stress test: 98.1%, best 10,000 / worst 9,809 on a normal fan curve
• Peak temps in the stress test: 82C core, 102C hotspot, 88C VRAM. FE cooler is the limit here, it’s sitting at the power limit the whole time

XBAR was the biggest jump by far. Went from about 9,250 to 9,650 just from that. The -25mV offset was the other big one since it’s power limited and less voltage means it holds more clock.

Hi everyone!

As a hardware enthusiast, I created a lightweight Windows utility called GPU OC Calculator. It helps calculate theoretical GPU performance scaling (TFLOPS & Memory Bandwidth) when overclocking, while also estimating total system PSU power draw, AC wall draw, and lost heat.

Key Features:

• Side-by-side Stock vs OC comparison display.
• PSU efficiency estimator (80 Plus ratings & full system load).
• Safety alert warnings for high core clock gain thresholds to prevent instability.

I just published Beta 2 with a cleaned-up UI layout! Since it's still in active development, I'd love to get your feedback, testing results, or suggestions.

📥 GitHub Repository & Releases: https://github.com/Xtrizer/G-OC-calculator-tool-for-windows-

Looking forward to your thoughts

Ok so I have 2x16 GB of CL30 6000 SkHynix A die, and i finally got CL26 "stable." As for my CPU, I'm working with a 9850X3D, and I dialed the PBO back to from an aggressive per core undervolt to -5 all cores (+200 boost still) to make sure its not affecting my ram OC testing. I made sure that was stable at stock expo with overnight tests on y-cruncher VT3, absolut and 1usmus on testmem5. I have never tested past 10 hours on any tests, however.

I then tightened my secondary timings pretty heavily, going off Buildzoids Sk Hynix's optimal ramtimings, and was recommended by a friend to use the TRAS 126, TRC 54 timings, which from my understanding is kind of a trick you can use on AM5. If someone could explain this for me or let me know if that is just stupid, I would appreciate it. But for now that is what I have, and from what I have read it is a real thing that works. At stock EXPO voltages and CL30, these timings ran with no problems, and I did two overnight tests on both y-cruncher and 1usmus, as well as an hour of OCCT, then 6 hours of absolut. I was able to run the same timings at CL28 with all voltages on auto, (1.4 vdd/vddq/vddio), same tests, but CL26 seems to need, 1.5 mem VDD, which I did not expect.

I haven't done extensive testing yet on CL26, which is why stable is in quotations, but I just passed 1usmus v3 for 4 hours and y-cruncher vT3 for another 4 hours. Earlier, I passed y-cruncher for 7 hours overnight and then failed 1usmus after about 3 minutes, lmao. I upped the MEM VDD from 1.4 to 1.42, then 43.. and so on to 1.48, all tests failed about the same time as the first. I thought maybe it just wasn't possible for me, but at 1.5 VDD I am able to run both tests for at the very least 4 hours with no errors. This is my first time trying to OC ram, and my X870 tomahawk keeps all 3 voltages (VDD,VDDQ,VDDIO) in step unless i manually set them, so i just upped vddq and vddio slightly, although I'm not really sure if I even needed to. I figured 1.45-1.48 mem vdd would do the trick, but 1usmus was not stable until 1.5v. I have a ram fan and the max temps i saw while running 2 hours of absolut was 47C, and I don't know if that is acceptable, or if I need to lower my tREFI once I start to push the FCLK and MCLK higher, as well as my VSOC and other voltages. This is just a fun experiment for me, I honestly don't care at all about the performance gains, because honestly there is little to be had on an x3D chip, at least from my understanding. But hey, I'm not saying I don't enjoy a little more fps and better 1% lows, so its definitely a plus.

If there are any holes in my testing, my timings, or anything else please let me know. I am open to any suggestions as I love learning about these things. Please be respectful, as I am very new to this and would just like some help and some knowledge from people who are more experienced than I am. Was planning to run some games on this today, then run 1usmus overnight, then y-cruncher during school tomorrow, then absolut overnight. If all of that passes, i am going to move onto to the memory fabric and see what I can do there. Oh, and wanted to tighten some secondary timings even further, if possible, for example tRFC to 384. Would be going off of buildzoids extreme profile on his ramtimings website. Not expecting this to all just work out perfectly, so I'm not going to be upset if there are certain things I am unable to do, just want to get as far as possible and have completely stable ram. I don't think I'll ever be patient enough to do any 24 hour tests, but I mainly play fps games and none of them even get close to stressing my cpu or memory as much as these tests. No sure if that matters though, so just let me know what I should be doing, thanks guys.

Hello sub, I’m looking for guides not only on CPU/RAM OC and UV, but also if there’s anyone who’s actually done proper tests on these components that I own right now:

- Ryzen 7 5700X
- GSkill Ripjaws 16GBx2 - 3200MT/s CL16 (F4-3200C16D-32GVKA)
- ASUS TUF Gaming X570 Plus Wifi
- Gigabyte 3090 Gaming OC
- BeQuiet Dark Power 14 1kW

My goal is to achieve better performance, maintaining power consumption on current levels, not because of electricity, but for components’ longevity.

If there’s any essential information I would need to have regarding any of my components in particular, whether for OC or UV. I would highly appreciate it, since I’m sure most of these don’t have many caveats when customizing performance, but maybe I could encounter some unexpected quirks, and I just want to be prepared to deal with those..
Right now I’m running default PBO, with no UV, and the RAM is DOCP for 3200MT/s, so no real overclocking yet. My GPU is OC and UV, so in my experience until now, I don’t believe I need to touch anything in that region.

I have never touched any RAM settings before, other than just XMP, and I’ve only ever overclocked my CPU, never tried undervolting it.

Any info I might be missing, just ask and I’ll do my best to provide it as accurately as possible.

I’m building a new high-end AM5 system dedicated to tight memory overclocking and I wanted to get some advice from the community.

Here is the hardware I’m working with:

• Motherboard: gigbyte x870 aorus tachyon ice
• RAM: 48GB (2x24GB) Corsair Dominator Titanium DDR5 8000MHz CL38 (Confirmed Hynix 24Gb Non-Binary M-Die)
• CPU: AMD Ryzen 7 7800x3d

My main goal is to push this Hynix 24Gb M-Die kit to its absolute limits for daily gaming and benchmarking. I'm torn between two configurations and would love to hear your thoughts:

1. The 1:1 Dream: Trying to stabilize 7000MHz CL30 or 6800MHz CL28 at UCLK=MCLK (1:1). I know the AM5 IMC is the main bottleneck here, but given it's a Tachyon board and a heavily binned 8000MHz kit, what are the realistic chances of winning the silicon lottery for a 3400-3500MHz UCLK on a 7800x3d? What voltages (VDD, VDDQ, VSOC) should I scale to for daily stability?
2. The 2:1 Route: Running the kit at its rated 8000MHz CL38/CL36 (or downclocking to 7600/7800 with tighter sub-timings) at UCLK=MCLK/2 (2:1). How much performance am I actually losing in latency compared to a tight 6400MHz 1:1 tune?

A friend of mine tried to convince me that the motherboard/RAM wouldn't handle these speeds and told me to get an X870E board instead, but from what I know, this 2-DIMM Tachyon board is literally built to destroy 4-DIMM X870E boards in memory signaling.

I will be using active fan cooling directly over the RAM modules to keep the M-Die below 50°C.

Any advice on starting voltages, primary/secondary sub-timings (especially tRFC scaling for this specific M-die), or Gigabyte BIOS quirks would be highly appreciated!

Thanks!

*Title is supposed to say Ampere, not Turing I only realized I wrote Turing after I posted it

Using NVIDIA VBIOS editor, and VBIOS Vix loader I was able to raise the Power limit of a 2050 Mobile above the stock VBIOS Max.

Here is a screenshot using the stock VBIOS, with power draw at 50W

Here is a screenshot of the modded VBIOS, with a power draw of 60W

Now, I'm not sure how high I can safely raise the power limit of the gpu, as the GPU temp isn't a problem, with the fan speed maxed it only reaches about 60-65C, but I'm not sure how much power the board itself can deliver to the gpu safely. I also haven't seen how high I can push the clocks yet, with the stock power limit I can run +210 Core and +500 mem stably, so Ill check in again later to see how high I can push the clocks with the 60 W VBIOS.

Also, if anyone is sure how high I can safely push the Wattage, please comment. I can supply the motherboard model and laptop if needed.

So just giving the Board limit 10A more has a huge effect on average clocks .

Powerlimit aside, I always was around 3220MHz, now 3250Mhz+.

Waste of Energy? Yes!
Does it make sense ? No!
Does it make fun? A lot !

Since my Card doesn’t Like 3.3GHz+ I have to compensate with Power 😄.

Now I have the 5080 Aorus I wanted, just different 😄.

Title, I wanted a deeper undervolt for my potato bin 14900K SP93. For now I have set :

V/F Point 6 -0.099mV
V/F Point 7 -0.069mV
V/F Point 8 -0.069mV
V/F Point 9-11 -0.099mV

The shallower offset on 7 and 8 seems to give stability at shader compilation loads. Am I doing this right? And am I offsetting the correct V/F Points? Currently with those settings I get low 39000s on R23. I’m still confused on how the CPU will behave with that kind of curve and what the ideal behavior is. Cheers! (Image was from a previous unstable run).

I threaded the holes of this CPU Pot to improve the reactivity, meaning it will cool down a lot faster when the copper will be in contact with a cryogenic fluid, be it -78°c acetone with dry ice or -196°c liquid nitrogen. It took me about 2h from start to finish, threading the holes by hand.

The guide that I use when I overclock is this one at https://www.youtube.com/watch?v=Ge0EnPz-jWY and the main point of it is to grab the curve in the middle while leaving the initial lower points alone so that the GPU can properly downclock... I transferred the exact curve after following the guide and tinkering with it into MVOLT+ and added XBAR + SYS overclocks and while the OC does perform a lot better, my gpu is stuck at 2500MHz+ now and never downclocks or lower voltages, which stock gets down to .800V and downclocks below 700MHz. Is there a way to get this in MVOLT+?

EDIT: I figured it out. It had nothing to do with MVOLT+, it was because in my NVIDIA global settings I Had power management set to Prefer Maximum Performance. Toggling it back to normal immediately downclocked and dropped voltages.

Not a common CPU/GPU pair but fun still. +310 core, +3000 mem, +450 xbar, +400 sysclock

im still not sure how but i managed to achieve a really good result on timespy with my i7 3770 and RX550 combo, resulted in a score pretty similar to my early attempts with the 1600X pc i had not too long ago

it also took quite a while to get the ram latency to 43.2ns on this H61 board im using, other than that the gpu managed to survive 7 attempts at timespy before the memory gave up at 2275mhz and about an hour later it gave up on the 1570mhz core, its still alive tho so im gonna be pushing it in other hardware just for fun tbh

i also dont really know what else to do now since i kinda reached the limit of what i can do on this H61 board.

also these are the parts of the pc i did it in:

GA-H61M-DS2 Rev 4.0
i7 3770
2x8GB Ballistix Tactical LP 1600mhz CL7-7-8-18 1.5V
Sapphire Pulse RX 550 4GB
MSI MAG A550BN 80+ Bronze

i would also appreciate some tips on what i could try to improve if yall have any.

I’ve run into an issue where the program fails to display the core clock frequency. All other parameters are shown correctly. I tried installing the latest driver (617.42) and then an older version (596.49), but the problem persisted. I also tested various versions of mVolt+, but to no avail. Naturally, I performed all reinstallations using DDU and carried out clean installs via NVcleanstall. Under the "Telemetry -> Clocks" section, the core clock is listed as "unavailable." Yet, when I previously used MSI Afterburner, the frequency was displayed, and the built-in monitoring in the NVIDIA App shows it correctly even now. Could you please help me resolve this? It’s quite inconvenient to tune the graphics card when I have to rely on a separate overlay just to see the clock frequency.
ZOTAC RTX 5070 AMP White, Windows 11.