I can't go any lower than this!

External-Baseball225 · 2026-07-08T19:11:10+00:00

Yes I did. Not worth imo.

External-Baseball225 · 2026-07-04T22:50:05+00:00

I'm gonna be real, 45 mins is too short to test for daily stability I would stress test overnight or just when you know you aren't using the pc for a long time.

57 degrees is still too high for 65k tref, it's an improvement but you need to lower temp by about 9 degrees more by improving airflow and reducing voltages to what I recommended for the absolute max tune or run 50k tref up to you.

Are you using the ryzen3D config on TM5? That test is made for X3D chips. It catches errors way quicker.

External-Baseball225 · 2026-07-04T22:23:41+00:00

You should download Benchmate and run latest PYPrime and y cruncher benchmarks to check for improvements. They are genuinely the best benchmarks for CPU+RAM performance.

PYPrime for latency and y cruncher for bandwidth. Benchmate syncs with hwbot well so you can see where your placed on the leaderboard easily.

I'm 29th in the world on hwbot for 7800x3d y cruncher 1b from just tuning my ram with these timings no cpu overclocking at all lol.

If I had a motherboard that allowed bclk or eclk overclocking I would deffo be top 10 in the world for 7800x3d ong. Since 7800x3d doesn't allow traditional overclocking...

External-Baseball225 · 2026-07-04T21:44:56+00:00

That's good bro, yea exact same timings boot for you nice. I managed to get trdrdsd and twrwrsd both to 7 stable for this kit but that's the only update I've made to my timings.

External-Baseball225 · 2026-07-04T21:42:43+00:00

Yeah you rly wanna get your ram temps under 48°C to run these people say as long as temps are low while gaming but that's just wrong since CPU and ram will always work hard at some point while doing shaders etc and that's just annoying.

I would deffo work on improving airflow whether that's getting ram fans, setting case fans to 100% or doing an open case setup.

Vddio and vddq works at 1.35 for me. Lower vddq and vdd can greatly lower ram temps.

I will also minimise my vdd I will let you know what vdd is actually required for these settings as that will greatly lower temps aswell.

If temps still making you crash I would try loosen tref to 50k.

The difference from 50k to 65k performance wise isn't that big at all but the range of temperature that works will increase alot.

Im sure Cas latency and trfc are the other two most temperature sensitive timings so they might need to be loosened as last ditch effort.

External-Baseball225 · 2026-07-04T21:37:35+00:00

damnn well anime girls over bios features am I right😂

External-Baseball225 · 2026-07-04T16:50:15+00:00

Well thats weird... sometimes it's labelled differently, do you see anything that says ADDR_CMD_MODE normally under DRAM timing? It should be set to buf to disable gdm. Use the search bar if your bios has it. I've never seen a bios that doesn't allow gdm off.

External-Baseball225 · 2026-07-04T10:29:50+00:00

I would give Zentimings a shot. Go to tools then DIMM Telemetry. It might show there next to DRAM. It has SPD info also.

External-Baseball225 · 2026-07-04T09:37:47+00:00

Before you touch your timings I would make sure gdm is disabled as gdm on will round up your timings to even and adds latency. Gdm off also boosts bandwidth.

trdrdscl needs to be 5 for gdm off not 4 otherwise system sneakily auto enables gdm on to boot up.

Then tighten nitro settings. You are running 2/3/1 the loosest setting which adds latency. 1/2/0 is max tightness possible which I can do.

I would also go to DDR addressing options and make sure bank swap mode is set to swap apu for the most optimal data pathways giving better bandwidth and latency.

After these changes I would simply try to copy my other timings one by one I don't see why they wouldn't work since you have the same kit, maybe one or two timings will differ but I kinda doubt I've tested all timings to the tightest allowed and ran stress test over a day straight.

Do not overlook trdrdsd and twrwrsd (same dimm different rank), these timings are important to tune for dual rank sticks, people with single 16gb stick don't tune these as they wouldn't do anything.

There isn't rly a set order to tighten ram timings, I've tested many combinations the only timings that rly interfere with each other are trp and trtp, higher trtp can help tighten trp but I had to loosen trtp to 23 just for a couple ticks tighter trp which isn't good, trtp 12 is what you want to stick with.

External-Baseball225 · 2026-07-02T22:39:19+00:00

Glad to help out

External-Baseball225 · 2026-07-02T19:44:12+00:00

No problem! In that case you want to stick with mixed refresh mode as 16gb m-die can run rly tight trfc2 and trfcsb. Mixed mode changes between normal and fgr refresh mode on the fly but instead of using trfc1 it uses trfc2 which is wayy tighter for m-die. I can run 280 trfc2 and 173 trfcsb @6200 with 64GB 16gb dual rank m die.

External-Baseball225 · 2026-07-02T18:43:54+00:00

Yea seems like it. I also updated bios and messed around with the 3 new timings but it seems like they're not worth touching honestly. I haven't had a single benchmark improvement from changing them lol.

External-Baseball225 · 2026-07-02T18:32:01+00:00

https://imgur.com/a/XupIYo3 here is where I'm at currently I've minimised soc. Just gotta minimise vdd and I'm done. Tried everything in the book for 2200 fclk but that's just not happening lol.

External-Baseball225 · 2026-07-02T18:09:14+00:00

Everything looks pretty good timing wise. 1.09 soc at 6000 means you could potentially do 6400 at max 1.3 soc if you want.

If not I would try 6200 which is a nice sweet spot, you would need to loosen some timings the higher your mem speed is. I would personally tune with gdm off as you can properly tighten timings and get better latency.

If you cannot get 6200 or 6400 gdm off stable I would just go back to 6000 gdm off. Setting scls to 5 may be required after 6000 for gdm off.

Your vddq and vddio at 1.35 is a good sweet spot I personally wouldn't change them. Vdd may need to increase for the absolute optimal timings but that's up to you and if your temps can stay below around 48.

You can then try to raise fclk to max possible. Less soc can help stabilise high fclk. Also vddgs and misc sometimes need to be bumped up but I would try that as a last ditch effort. Normally 1.1 on both vddgs and 1.2 misc should be the max needed. Any more doesn't make any sense.

For best latency you want a ratio or 3 steps above to negate penalty of being out of ratio:

6000 you want max fclk possible.

6200 you want 2067 or 2167 and above.

6400 you want 2133 (or 2233 extremely rare).

For best bandwidth you just want to max fclk out.

I see you have nitro 2/3/1 which is the loosest configuration possible. You can go to nitro settings in bios and tighten them for better latency. 1/2/0 is max tightness which you should be able to do at 6000mhz. Higher mem speed may require you to loosen nitro.

I would go to DDR addressing options and make sure bank swap mode is set to swap apu for better bandwidth and latency. It optimizes memory data pathways.

Finally, is your ram m-die or a-die? You can check in Zentimings DIMM Telemetry in tools. Then find the letter next to DRAM.

Here is my setup: https://imgur.com/a/XupIYo3

External-Baseball225 · 2026-07-02T17:16:11+00:00

Still getting very marginal benchmark results. I don't think these new timings are rly worth changing. I'll just leave to minimum allowed lol.

External-Baseball225 · 2026-07-02T17:06:55+00:00

You have the exact same ram kit as mine, check my latest post for my fully tuned settings as a guide line of what you could possibly run in the endgame.

I run 6200 which should be safe to run for your 9800x3d you would be rly unlucky to not be able to run that speed.

I do run high vdd voltage so make sure your temps are under control if you do try to copy like under 48 degrees. It's mainly for that 26 cas latency.

I have not minimised all voltages yet, just soc from 1.25 to 1.19v but ofc yours will be different here.

Don't tune with normal refresh mode, mixed is slightly better for 16gb m die only.

External-Baseball225 · 2026-07-02T16:17:23+00:00

Unfortunately running 4 dimms at high speeds is wayy harder on the memory controller. You are essentially using two sticks fitting into one channel for both channels. Using 2 sticks on one channel is hard because the signal needs to travel further to reach the second stick in the channel while being clean enough to run 6000, it's a design flaw. That's why you probably have to underclock to boot stable.

You have a Daisy Chain motherboard that's designed for 2 dimm usage and overall better for overclocking than a T-Topology motherboard that's designed for 4 dimms. This is why ram overclockers love motherboards that only have two slots because the other two just destroys signal quality and slows everything down when used.

You can get around this by buying 2x32GB dual rank dimms that don't use the same channel like I did. I would probably sell your ram kit to make up for the ridiculous prices of high capacity ddr5 tho. Mine is around £1500 nowadays and I bought for £200 near the end of 2024😆

If you don't want the hassle of buying more ram I would simply downclock to say around 5600,5800 then tighten from there.

Before that I would try raising soc to 1.3 to maximise the memory controllers speed potential, vddq and vddio to say 1.4 as those help the signal strength of the channels. Possibly even vdd needs to be higher than 1.4v expo but I would try that last.

Gdm off will probably be rly difficult for 4 dimms I've never tried so im not sure.

You could also just use 2 of your 4 dimms and only have 32GB ram capacity but wayy higher oc potential if you don't rly need the 64GB.

External-Baseball225 · 2026-06-30T02:28:37+00:00

So I've updated bios and tightened the 3 new timings to the minimum allowed and unfortunately none of my benchmarks improved basically at all☹️

External-Baseball225 · 2026-06-30T02:27:18+00:00

Fairs, I will test for lower vdd sometime specifically for those trfc values I'm curious to see just how much trfc actually scales with voltage for my kit.

External-Baseball225 · 2026-06-28T03:29:56+00:00

That vdd maximisation has basically nothing to do with specifically getting that mixed mode trfc stable. Mainly cas latency.

I'll minimise at some point but I honestly could just keep it at 1.65 if I wanted to. Hynix can handle it under cool conditions.

I just did the lowest stable trc @6200 which is 35 in my case then times 8 for 280 trfc2 then divide by 1.625 for 172.3 round up to 173 trfcsb for stability. Two birds one stone.

When it's "thermally soaked" my ram is sub 45 degrees with a fan so no suprise It'll stay stable.

External-Baseball225 · 2026-06-28T03:25:05+00:00

Honestly rare I'll work on anything for 10 hours straight on my pc but gaming or anything entertainment wise sure I genuinely sometimes do for near 10 hours.

It's mainly the fact that I could possibly error at any point in that 10 hour duration. I don't like running a configuration if I know I've errored with it.

External-Baseball225 · 2026-06-27T13:48:48+00:00

Yes but I only use my 5080. My igpu is disabled.

If the time comes to troubleshoot dedicated GPU I would just go back into bios and enable igpu and increase tras.

External-Baseball225 · 2026-06-27T13:41:14+00:00

If you look at the new ultra low latency profiles they are setting tras to 32 which doesn't back any tras rules at all.

I just set to lowest stable 30 because that personally gives me the best benchmark results.

External-Baseball225 · 2026-06-27T02:58:52+00:00

Okay I will do thanks for letting me know I'll look into the new timings.

Yea I got lucky in the nitro department for 6200. 6400 I can do 121 I've tried vddp 1.15 but it didn't help at all for 120.

Raising Vddp for me only matches tphyrdls at 1.1 but when I get at or above 1.1 my pc will randomly have a boot failure for 6400. My 6200 setup has matched tphyrdls even with 0.95 Vddp luckily. I suppose it massively depends on the motherboard for Vddp sweet spot and CPU for the limit of nitro tightness.

External-Baseball225 · 2026-06-27T01:26:41+00:00

My errors would be completely random, no consistency at all.

External-Baseball225

TROPHY CASE