**AMD 9950X3D Owners Club**

[McCarthy]

Not so much the CPU tbf, more the motherboard (1 DPC) doing the heavy lifting.

Life in the trenches...

Spoiler

Yes I need a fan when running a true RAM Test like Karhu to stop the memory hitting higher temps which causes a failure. Games don't stress memory at all so temps not a concern there.

Most 9950X3Ds I've tried did 8200 without issue except for one, that had the strongest cache cores I've ever encountered. That one is now owned by @GoRedwings19.

Yep I’ve got a fan on mine also, it’s a must imo.

I was thinking about trying a few 9950x3d but I’m not benching etc and gaming is smooth.

Next time around I will partake in the binning a few.

What I don’t get is, why the hell do they release Apex boards and other high end so late?

 

[LtMatt]

Yeah silicon lottery for you, like I say though, the cores are pretty good in this one, the 3D cores are boosting to 5750 and the freq cores to 5950 with an FMAX boost override of +200 and LLC lvl 8, curves are currently -25 on 3D cores and -15 on Freq cores, tested and stable, im still working on those though.

Its just a shame really that AMD opted to use the same IO Die as 7000 series, I went through about 5 or 6 7950X3Ds before I got a decent one.

What board are you running? Using anything other than a Gene or Apex (and perhaps an Aorus Master from Gigabyte) ramps up the difficulty ten fold above 8000Mhz.

 

[LtMatt]

Yep I’ve got a fan on mine also, it’s a must imo.

I was thinking about trying a few 9950x3d but I’m not benching etc and gaming is smooth.

Next time around I will partake in the binning a few.

What I don’t get is, why the hell do they release Apex boards and other high end so late?

Yes, once you go much above 48c failures can happen, it depends on the DIMMs and luck of the draw. You might get lucky and have some can tolerate into the low-mid 50s like a dual rank kit (6000 EXPO 64GB A Die) i had a year back. However, my current kit (8000C38 32GB A Die) gets finicky under stress tests above 48c once you go above 8000MHz, so YMMV.

Fair question about the Apex, I will deflect that one to @Silent_Scone.

I don't believe the Apex to be that much better than the Gene, at least in terms of memory OC so I've not switched. However, I believe it's currently the best board Asus offer in terms of pure memory oc capability so If I didn't own the Gene I'd be getting that one.

 

[McCarthy]

Yes, once you go much above 48c failures can happen, it depends on the DIMMs and luck of the draw. You might get lucky and have some can tolerate into the low-mid 50s like a dual rank kit (6000 EXPO 64GB A Die) i had a year back. However, my current kit (8000C38 32GB A Die) gets finicky under stress tests above 48c once you go above 8000MHz, so YMMV.

Fair question about the Apex, I will deflect that one to @Silent_Scone.

I don't believe the Apex to be that much better than the Gene, at least in terms of memory OC so I've not switched. However, I believe it's currently the best board Asus offer so If I didn't own the Gene I'd be getting that one.

Think I could do with trying something other than dual rank. I really don’t need 64gb for gaming. I was shocked that I couldn’t run GDM off, but it is what it is.

Have you seen Sugiolover’s Cyber Punk 720p score? Holy **** !

 

[Locky]

Yes, once you go much above 48c failures can happen, it depends on the DIMMs and luck of the draw. You might get lucky and have some can tolerate into the low-mid 50s like a dual rank kit (6000 EXPO 64GB A Die) i had a year back. However, my current kit (8000C38 32GB A Die) gets finicky under stress tests above 48c once you go above 8000MHz, so YMMV.

Fair question about the Apex, I will deflect that one to @Silent_Scone.

I don't believe the Apex to be that much better than the Gene, at least in terms of memory OC so I've not switched. However, I believe it's currently the best board Asus offer in terms of pure memory oc capability so If I didn't own the Gene I'd be getting that one.

The one you sold me does 8200 no issues on this MSI board with 1.05v SOC, 1.45V dimm and 1.4 VDD/VDDQ

Can't seem to push the FLCK though, but not really tried.

 

[Locky]

I use this ram cooler, along with some ram sinks. Made a massive difference.

 

[LtMatt]

Think I could do with trying something other than dual rank. I really don’t need 64gb for gaming. I was shocked that I couldn’t run GDM off, but it is what it is.

Have you seen Sugiolover’s Cyber Punk 720p score? Holy **** !

Yes, DR will limit you to 6200Mhz for the most part. If you get really lucky you might be able to run 6400Mhz.

DR in 1:2 mode can do higher frequency, but getting much over 7200Mhz will prove difficult. Best to just stick to 1:1 and run as high a memory frequency as you can (eg 6200/6400).

The one you sold me does 8200 no issues on this MSI board with 1.05v SOC, 1.45V dimm and 1.4 VDD/VDDQ

Can't seem to push the FLCK though, but not really tried.

Yes it did 8200Mhz easily. I thought it did 2200Mhz FCLK too from memory. However, maybe I was mistaken. Try 2200 but use a higher SOC voltage. 1.05 is quite low so might not help 2200 FCLK. Try 1.15 to start, then adjust down if stable.

My sample showed performance regression with too low SOC voltage, eg 1.100v and even up to 1.115v. 1.125v was the sweet spot for highest Karhu output.

 

[Locky]

Yes, DR will limit you to 6200Mhz for the most part. If you get really lucky you might be able to run 6400Mhz.

DR in 1:2 mode can do higher frequency, but getting much over 7200Mhz will prove difficult. Best to just stick to 1:1 and run as high a memory frequency as you can (eg 6200/6400).

Yes it did 8200Mhz easily. I thought it did 2200Mhz FCLK too from memory. However, maybe I was mistaken. Try 2200 but use a higher SOC voltage. 1.05 is quite low so might not help 2200 FCLK. Try 1.15 to start, then adjust down if stable.

My sample showed performance regression with too low SOC voltage, eg 1.100v and even up to 1.115v. 1.125v was the sweet spot for highest Karhu output.

I didn't know lower SOC can hurt performance.. Ill have to test for that...

 

[Jamin280672]

What board are you running? Using anything other than a Gene or Apex (and perhaps an Aorus Master from Gigabyte) ramps up the difficulty ten fold above 8000Mhz.

X670E Gene

 

[LtMatt]

X670E Gene

Can you share a Zen Timings (ZT) of your current settings? Latest ZT build is ZenTimings_v1.36.1650-beta.zip.

Looks like your memory is water cooled, what temp does it get up to under stress test out of interest?

 

[LtMatt]

I didn't know lower SOC can hurt performance.. Ill have to test for that...

Yes it can. I'd recommend purchasing Karhu (its cheap) and it's a good system stability test for RAM and FCLK and is harder to pass for most than TM5 or other similar apps.

If you do get it, make sure to enable the option 'CPU Cache Enabled'.

 

[Locky]

Yes it can. I'd recommend purchasing Karhu (its cheap) and it's a good system stability test for RAM and FCLK and is harder to pass for most than TM5 or other similar apps.

If you do get it, make sure to enable the option 'CPU Cache Enabled'.

ok will play with it later after some gaming..

Currently using MemTestPro by HCI which is good for picking up errors quickly even after passing other tests..

 

[Jamin280672]

Can you share a Zen Timings (ZT) of your current settings? Latest ZT build is ZenTimings_v1.36.1650-beta.zip.

Looks like your memory is water cooled, what temp does it get up to under stress test out of interest?

Sure, ive just been into the bios and dropped SOC voltage a bit and fired up TM5 to test it, the RAM temp wont really get any hotter than its at now, maybe 1c more, but thats about it.

 

[LtMatt]

ok will play with it later after some gaming..

Currently using MemTestPro by HCI which is good for picking up errors quickly even after passing other tests..

Memtestpro is not the best stress test, not gonna lie to you mate. Karhu takes it up a level for RAM and especially FCLK.

 

[Locky]

X670E Gene

What ram cooling block is that mate, I likes it!

 

[LtMatt]

Sure, ive just been into the bios and dropped SOC voltage a bit and fired up TM5, the RAM temp wont get any hotter than its at now.

Those resistances look odd. Are those the default values chosen by the board? Looks like you are using M Die, might explain it...

 

[Locky]

Memtestpro is not the best stress test, not gonna lie to you mate. Karhu takes it up a level for RAM and especially FCLK.

ok will try that one but I think it should be stable at current settings as its passed everything ive thrown at it

but going forward will try karhu

 

[LtMatt]

ok will try that one but I think it should be stable at current settings as its passed everything ive thrown at it

but going forward will try karhu

Could be, but extreme overclockers tend to use that particular stress test when they know it will fail Karhu.

Show me an 8 hour overnight Karhu run to earn props.

 

[Jamin280672]

Those resistances look odd. Are those the default values chosen by the board? Looks like you are using M Die, might explain it...

Yeah its 48gb (2x24gb) G.Skill Trident Z5 8400mhz CL40, its M die, I do have a kit of G.Skill 32gb (2x16gb) 8000mhz A-Die with Iceman Heatspreaders on it (waterblock ready) that I might put in a give a try.

The resistances are stock / default.

What ram cooling block is that mate, I likes it!

Its Iceman copper heatspreaders from Ali Express and an Iceman waterblock that screws into the top of the heatspreaders, Took the G.skill heatspreaderss off with the Mrs hairdryer, a lot of care, pair of gloves and a plastic ice cream spatula, the kind your get with some thermal pastes, then cleaned everything up with 99% IPA, sniped off the LEDs, then Ive got GELID Ultimate extreme pads on the IC's and TG Putty on the PMIC, fitted the new heatspreaders to all of my kits lol.

If you heat the back side up first, and take that side off first, the side with no ICs, its just held on with a very super sticky foam type tape, then the other side comes off easily without much more heating, the light bar at the top just falls off then, its only held on by the heatspreaders.

 

[LtMatt]

Yeah its 48gb (2x24gb) G.Skill Trident Z5 8400mhz CL40, its M die, I do have a kit of G.Skill 32gb (2x16gb) 8000mhz A-Die with Iceman Heatspreaders on it (waterblock ready) that I might put in a give a try.

The resistances are stock / default.


Its Iceman copper heatspreaders from Ali Express and an Iceman waterblock that screws into the top of the heatspreaders, Took the G.skill heatspreaderss off with the Mrs hairdryer, a lot of care, pair of gloves and a plastic ice cream spatula, the kind your get with some thermal pastes, then cleaned everything up with 99% IPA, sniped off the LEDs, then Ive got GELID Ultimate extreme pads on the IC's and TG Putty on the PMIC, fitted the new heatspreaders to all of my kits lol.

If you heat the back side up first, and take that side off first, the side with no ICs, its just held on with a very super sticky foam type tape, then the other side comes off easily without much more heating, the light bar at the top just falls off then, its only held on by the heatspreaders.

If you fancy switching to your A Die kit, maybe you can copy some or most of most my settings. Initially, perhaps loosen some up a bit such as RP (42) RC (100) RFC (512) and WRWRSCL (8) just to see if you can get it working. Try SOC 1.15 to start with, VDDP 1.120, and VDDIO at 1.431v. For CL34 start with VDD at 1.66v and VDDQ at 1.53v.