5800X3D CO and RAM - Thoughts?

[vroktylF]

Just trying to catch the low hanging fruit here. If any of these settings isnt worth the hassle or if some is obviously "wrong", please tell.

MSI B450 GAMING PRO CARBON AC - AGESA ComboAM4v2PI 1.2.0.Cc
5800X3D with Pearless Assassin 120
4x8GB SR Crucial Ballistix DDR4 3600 16-18-18-38
PowerColor RX 7800 XT Hellhound/Red Devil (@1100mV, core@stock, mem@2514, power +15%)

Attaches pictures of
XMP profile 1 stock -
XMP profile 2 stock - (This seems to change SoC and VDDP voltages for some reason)
XMP profile 1 changes - Settings with red numbers is changed, except for tRFC, when set to 560 system didn't boot and needed a cmos reset. Everything else is set to AUTO.
XMP profile 1 tuned - Reported timings from Zentimings
mem.png - Thaiphoon burner reported memstick specs.

Curve optimizer -30 (preferred cores -25)
C-states - Enabled
CPPC - Enabled
CPPC Preferred - Disabled
SVM mode - Disabled

It was a while I looked into this and it seems that later AGESA versions have higher core clocks voltages?

 

[dgianstefani]

It doesn't really matter how you tune it. Before the 9800X3D the X3D chips don't gain much if anything from tuning. Maybe 1-3 % in games at best.

At best you might reduce your power consumption slightly and improve your productivity app performance.

 

[The King]

X3D CPU you can just run XMP and call it a day but you can get some little extra performance with tuned timings.

I will post some quick screenshot of what I got with my C9BLM kits. These may work for you. the best performance for these sticks are with
GDM Disabled CL15. But be aware if you don't know how to OC RAM you can corrupt your windows installation. So please careful make a system restore point before attempting
to run GDM disabled.

C9BLM are basically the best Rev.E ICs you can get it can do well over 4000MT. However you will get WHEA errors in most cases above 1900/1967 FCLK.

If you want to learn how to OC RAM on the 5800X3D then start here.

5800X3D Owners

www.overclock.net

 

[Chrispy_]

Tune RAM for stability with any X3D chip, since RAM speed and latencies have minimal impact on them. DDR4-3600 and 1900 1800 FCLK is very very close to peak performance already.

Yes, there's a tiny bit of performance margin if you push for a memory OC, but honestly unless you're prepared to do all the stability testing that entails, just don't bother. Your time is so much better spent on looking for the optimum offsets for curve optimiser.

X3D memory tuning is definitely not low-hanging fruit. It's the withered last leaf at the very top of the tree and almost not worth reaching for.

edit - whoops, I can't even divide by 2 today :\

 

[Waldorf]

@vroktylF
unless something changed i didnt read about, C states off, and all cppc enabled.

should see if WTRL 16 gives better perf (shouldn't it be 4x WTRS ?)

 

[vroktylF]

Thank you for your answers!

Hmm, CPPC enabled, CPPC preferred cores disabled and C-states enabled is whats seems to be suggested here

What about the XMP profiles? Profile 1 and profile 2 differs. Hard to find any information about the difference but there is some about Profile 1 including basic timings and that the motherboard sets the rest. Profile 2 is supposed to be a full SPD profile including all the timings and nothing left for the board to decide.

I think i've always been running Profile 2 and have not noticed the difference in voltages.

Screenshot from hwinfo after Cinebench R23 been running for about 20 minutes. Its well over a year go since I tested this the last time and im pretty sure the core voltages and the power draw was lower. Any changes in AGESA lately? No problem holding 4.45ghz back then.

This is with CO -30 (-25 preferred cores) and stock XMP profile 1. Maybe its time for a repaste.

 

[freeagent]

Maybe its time for a repaste.

Might be, those temps are brutal for R23, I don't even see those for Linpack, unless it was summer.

Mine is air cooled, no real tune other than my curve and fclk/mclk. Stock power limits, pretty much stock. Dell territory.

 

[vroktylF]

Okey cpu and case fans all at 100% managed to get 15131 points. Case fans usually follows MB System sensor. Works good for gaming with <70C deg temps for both gpu and cpu and is reasonably quiet.
Maybe another fan for push-pull on the cpu would help all core workload.
Think thermal paste is OK after all.

also combined XMP profile 1 and 2. Think thats enough for now, lets see how the stability holds up over time.

 

[Chrispy_]

Dell territory.

I thought "Dell territory" was considerably under stock power limits, artificially crippled by Dell's zero-option BIOS so that they can get away with crappy cooling and the cheapest power delivery that functionally POSTs the CPU.

 

[freeagent]

I thought "Dell territory" was considerably under stock power limits, artificially crippled by Dell's zero-option BIOS so that they can get away with crappy cooling and the cheapest power delivery that functionally POSTs the CPU.

It feels like a Dell compared to my other CPU

But it plays games pretty decently..