Official ExtremeHW DDR5 Memory Overclocking Thread - Share Your Successes and Failures Here!

[Avacado]

7 hours ago, Mr. Fox said:

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Mr. Fox`s Memory Frequency score: 4100 MHz with a DDR5 SDRAM

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The DDR5 SDRAM @ 8200MHzscores getScoreFormatted in the Memory Frequency benchmark. Mr. Foxranks #56 worldwide and #56 in the hardware class. Find out more at HWBOT.

8200MHz

 

[acoustic]

The worst sample Unify-X on this planet, cheap early-ish M-Die, on a 13900K:

 

[Bastiaan_NL]

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Bastiaan_NL`s SuperPi - 32M score: 3min 53sec 759ms with a Core i9 13900KF (8P)

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The Core i9 13900KF (8P) @ 6500MHzscores getScoreFormatted in the SuperPi - 32M benchmark. Bastiaan_NLranks #73 worldwide and #10 in the hardware class. Find out more at HWBOT.

A busy evening of testing for the G.Skill competition, not that I stand a chance against the top guys but I like to do my best
Still a lot of tuning/headroom but I decided to run a few benchmarks with the current settings to see how they compare later down the road.

 

Edited February 28, 2023 by Bastiaan_NL

[neurotix]

 

 

 

Top one is what I'm happy with. A recent BIOS update caused me to have 1ns+ lower latency so I'm pretty happy about that. 2nd one is just to show speed and timings.

 

This is Samsung B-Die, and rated at 6000MHz 36-36-36-96, but I'm running it at 6200MHz 30-36-36-36 with 1.435v. Thrilled with it, and passed stressapptest in Linux for over 3 hours. Not had a crash or reboot or anything yet.

 

I tried 6400MHz but it was a no-go. It's a shame Ryzen memory clocks are a lot lower, but compared to my 5900x and B-Die this is pretty outstanding and definitely a big performance bump.

[acoustic]

I return with the Power of the Z790 APEX..

 

Same sticks and same CPU as shown in the Unify-X pic above, just a lot faster

 

7600 on M-Die. 7800 is within the realm of reality, but taking a break from OCing to enjoy the rig for a few days.

 

[Mr. Fox]

Maybe this will inspire some craziness...

 

 

[Avacado]

Sick Fox!

[Avacado]

ZERO FOX GIVEN!!!!

[kaliz]

On 30/03/2023 at 20:58, neurotix said:

 

 

 

Top one is what I'm happy with. A recent BIOS update caused me to have 1ns+ lower latency so I'm pretty happy about that. 2nd one is just to show speed and timings.

 

This is Samsung B-Die, and rated at 6000MHz 36-36-36-96, but I'm running it at 6200MHz 30-36-36-36 with 1.435v. Thrilled with it, and passed stressapptest in Linux for over 3 hours. Not had a crash or reboot or anything yet.

 

I tried 6400MHz but it was a no-go. It's a shame Ryzen memory clocks are a lot lower, but compared to my 5900x and B-Die this is pretty outstanding and definitely a big performance bump.

 

Very nice for b-die. Havent tried iiit yet! Micron i could get to 5600C40 (2x32GB) Hynix A-die 4x16GB to 6000C28 and M-die and A-die 2x16GB to 6200C28 tight. All with around 1,4v so pretty high., im also struggling to get pass 6200 on AM5, i think its because of the soc voltage can be only a maximum of 1,3v? With Alder Lake non-K OC on i3 and i5 its pretty much maximum stable 7100C32, and without bclk maybe 7200

 

for ddr4 i run a system now with DDR4-5500C20-27 with 2x16GB micron rev.b with i5 12400F at 5,5GHz. But i have to lower both to 5,4GHz if i wanna play BF2042

Edited June 13, 2023 by kaliz

[keeph8n]

I don’t play dual channel stuff anymore, but thought you all might find this interesting. 
 

3475X at Watercooled OC Profile. XMP of 6400MHz. 

[neurotix]

1 hour ago, keeph8n said:

I don’t play dual channel stuff anymore, but thought you all might find this interesting. 
 

3475X at Watercooled OC Profile. XMP of 6400MHz. 

That bandwidth is impressive, but the L3 Cache bandwidth speed is half of mine and the latency like 4 times higher.

 

I'm sure it can still run games ok, especially GPU bound ones, but that slow L3 is less than ideal for gaming.

 

Do you plan to fold on the chip as well as the 4090s?

[keeph8n]

5 hours ago, neurotix said:

That bandwidth is impressive, but the L3 Cache bandwidth speed is half of mine and the latency like 4 times higher.

 

I'm sure it can still run games ok, especially GPU bound ones, but that slow L3 is less than ideal for gaming.

 

Do you plan to fold on the chip as well as the 4090s?

 

Nah. Just folding on the GPUs. Games just fine so far in D4/WoW

[Mr. Fox]

Managed to finagle 8800 out of these rainbow puke G.skull sticks.

 

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MrFox`s Memory Frequency score: 4400 MHz with a DDR5 SDRAM

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The DDR5 SDRAM @ 4400MHzscores getScoreFormatted in the Memory Frequency benchmark. MrFoxranks #90 worldwide and #90 in the hardware class. Find out more at HWBOT.

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MrFox`s AIDA64 - Memory Read score: 140049 points with a DDR5 SDRAM

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The DDR5 SDRAM @ 4400MHzscores getScoreFormatted in the AIDA64 - Memory Read benchmark. MrFoxranks #15 worldwide and #10 in the hardware class. Find out more at HWBOT.

I've got them on the Supercool waterblocks, so the ICs are actively cooled by a cold plate rather than a top-mounted block.

Edited November 16, 2023 by Mr. Fox

[kaliz]

Love your setup!  and OC on the RAM is nuts!

[J7SC_Orion]

On 16/11/2023 at 14:03, Mr. Fox said:

Managed to finagle 8800 out of these rainbow puke G.skull sticks.

 

/img/logo.png

MrFox`s Memory Frequency score: 4400 MHz with a DDR5 SDRAM

HWBOT.ORG

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The DDR5 SDRAM @ 4400MHzscores getScoreFormatted in the Memory Frequency benchmark. MrFoxranks #90 worldwide and #90 in the hardware class. Find out more at HWBOT.

/img/logo.png

MrFox`s AIDA64 - Memory Read score: 140049 points with a DDR5 SDRAM

HWBOT.ORG

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The DDR5 SDRAM @ 4400MHzscores getScoreFormatted in the AIDA64 - Memory Read benchmark. MrFoxranks #15 worldwide and #10 in the hardware class. Find out more at HWBOT.

I've got them on the Supercool waterblocks, so the ICs are actively cooled by a cold plate rather than a top-mounted block.

 

  

Congrats ! Smok'n  

 

Below are my best daily settings on 7950X3D / X670E Aorus Master, plus 'temporary excursions' up to 8200

 

 

[Mr. Fox]

5 hours ago, kaliz said:

Love your setup!  and OC on the RAM is nuts!

Thank you. I never would have imagined running system memory at speeds like this a couple of years ago. It's crazy how high DDR5 clocks can go when the rest of the platform cooperates. 

3 hours ago, J7SC_Orion said:

 

  

Congrats ! Smok'n  

 

Below are my best daily settings on 7950X3D / X670E Aorus Master, plus 'temporary excursions' up to 8200

 

 

That is excellent. Not many people can get their AM5 setups to overclock the memory that well. Congrats on that. 

[neurotix]

 

I can do 8000MHz for benching just fine but it fails out in memtestCL nearly instantly. The difference between 7600 and 8000 is only like 2000GB/sec In Aida anyway.

 

Going from tight timing 6200 cas 30 on B-Die to 7600 cas 36 on M-Die has given me like 9 more fps in Forza Horizon 5 benchmark on Ultra.

 

I've tried everything to get stable at 8000MHz but either my IMC, my chip, or my RAM don't like it.

[EHW Ai]

Its Alder Lake so only 7200 here. 

 

Ignore the 12m tm5 this passes 6hr of it, just the only pic I have laying around.

 

[Mr. Fox]

 

 

[Mr. Fox]

The 24GB A-die modules require looser timings and lower voltage on both the Z690 Dark and Z790 Apex. If you have been successful with 8000+ memory overclocking using 16GB A-die modules, you will likely find your system will not boot using the same settings with the 24GB modules. CPU VDD2, VDDQ and VDIMM had to be lowered and SA voltage increased and tRFC increased on both of my systems.  Oddly enough, tCKE had to be lower to 6 (from a default value of 30) to get the 24GB modules stable on the Dark. The Apex uses 33 for tCKE.

 

 

Edited December 27, 2023 by Mr. Fox

[Mr. Fox]

Well, I am pleased to find my 24/7 8600 MT/s memory overclock settings on the Apex are going to work fine on the Apex Encore as well.  So, it looks like both systems will be running the same daily driver overclock settings. 60x on P-cores, 47x on E-cores, 50x on Cache and 8600 on memory.

 

I will probably have to dial them back to 59x on P-cores when the hot summer weather returns. With the winter weather and my office window left open to let the cool air (and tons of dust) in I am able to keep my office between 65-70°C F compared to the normal 78-82° F hotbox it turns into the rest of the year.

 

[neurotix]

On 02/01/2024 at 07:35, Mr. Fox said:

Well, I am pleased to find my 24/7 8600 MT/s memory overclock settings on the Apex are going to work fine on the Apex Encore as well.  So, it looks like both systems will be running the same daily driver overclock settings. 60x on P-cores, 47x on E-cores, 50x on Cache and 8600 on memory.

 

I will probably have to dial them back to 59x on P-cores when the hot summer weather returns. With the winter weather and my office window left open to let the cool air (and tons of dust) in I am able to keep my office between 65-70°C F compared to the normal 78-82° F hotbox it turns into the rest of the year.

 

 

This is amazing man! Nice work and rig!

[Mr. Fox]

5 hours ago, neurotix said:

 

This is amazing man! Nice work and rig!

Thank you. I feel blessed to have it. The silicon lottery is a pretty brutal thing at times and Lord knows there are more losers than winners in any lottery.

[Mr. Fox]

Finally received the IceMan Cooling Direct Touch Memory Cooler.  Got a nice gain in RAM cooling on the Apex Encore. The IceMan direct touch RAM block seems to give about the same delta as the Supercool does. These suckers are super heavy. Heavier than the Supercool because the backplate is thicker. The black bezel on top that covers the screws is magnetized and also made of metal. If there is anything that I wish would be different is the use of Philips head screws to attach the block to the jackets. They are a bit soft. Stainless steel Allen or Torx would have been better.

Comparing it to the Byski memory water cooling kit...

And, temps are still nice with my 8600 profile even with the elevated voltage. IceMan Cooling did really great with the memory cooling kit. The water in the cooling system for the Apex is about 5°C colder than the water in the Apex Encore loop. (The Apex has a 5-gallon reservoir and the radiator is near an open window, and the radiator for the Encore is in a corner of the office.) And, the difference in temperature reflects that precisely. That being the case, I call it a draw... "Even Steven" comparing it to the Supercool memory cooling kit.

 

Edited January 21 by Mr. Fox

[acoustic]

I wasn’t aware IceMan made a direct-touch block now. I have their original kit that works extremely well. They’re pumping out great products, and a lot easier to get than the foolishness that is dealing with SuperCool.

 

nice