The AMD Ryzen All In One Thread /Overclocking/Memory Speeds & Timings/Tweaking/Cooling Part 2

Since getting faster dual rank RAM of 3600 MHz and also having IFCLK at 1800 MHz I noticed SOC voltage goes to 1.2 volts if at auto / default.

Isn't that a little high? Iirc too high voltage can cause instability too.

Ryzen 7 3800X and ASRock X370 Killer SLI mobo.

Should I manually drop SOC closer to 1.1 V?

When I used 3000 MHz memory, even if I set IFCLK to 1800 manually SOC remained at 1.1 or close.

 

Yes, it's a bit on the high side. You should be able to get it under 1.1.
Have you tried lowering the soc voltage?
Or adjusting soc LLC.

 

Not yet but I'm going to now.

As it happens I've had random CTDs lately.

Also gonna try the memory voltage adjustments suggested here:
https://forums.guru3d.com/threads/r...-aorus-master-trident-z-neo-2x16-3600.438607/

I have no overclocking on anything, just RAM XMP enabled.

 

3600 is already overclock for Zen2. But it's not difficult to manage.
Can you post an image of Zen Timmings with your current settings.

 

Wdym zen timings, memory timings?

I can but they are per xmp profile.

 

Zen Timmings, it's a program that shows what are the current settings.

 

I manually now set:
SOC = 1.100 V
VDDP = 0.900 V
VDDG = 0.950 V

Timings are per XMP.

 

Seems the settings are good.
Did you test stability?

 

I already ran MemTest over night some time ago, no errors. FWIW.

Was able to play and record fine just now for abt 2 hours but so I've been in the past. The CTDs have been really random and there are days in between.
We'll see...

 

You might want to try setting GDM as disabled.
If it's stable, it will give you a small boost in performance.

 

AMD Details its 3D V-Cache Design at ISSCC

This week, the International Solid-State Circuits Conference is taking place online and during one of the sessions, AMD shared some more details of its 3D V-Cache design.
The interesting part here is the overall design of AMD's 3D V-Cache, as well as how it interfaces with its CPU dies. The cache chip itself is said to measure 36 mm² and interfaces directly with the L3 cache using a Through Silicon Via or TSV interface.
For all the CPU cores to be able to communicate with the 3D V-Cache, AMD has implemented a shared ring bus design at the L3 level. The entire L3 cache is said to be available to each of the cores, which should further help improve performance.

The 3D V-Cache is made up of multiple 8 MB "slices" which has a 1,024 contact interface with a single CPU core, for a total of 8,192 connections in total between the CCX and the 3D V-Cache.
This allows for a bandwidth in excess of two terabyte per second, per slice, in full duplex mode. This should allow for full L3 speeds for the 3D V-Cache, despite the fact that it's not an integrated part of the CCX.
AMD is also said to have improved the design of its CCX for the upcoming Ryzen 7 5800X3D in several ways to try and reduce the power draw, while improving clock speeds.
AMD has yet to reveal a launch date for the Ryzen 7 5800X3D, but it'll be interesting to see if the 3D V-Cache and the various minor optimizations can make it competitive with Intel's Alder Lake CPUs until Zen 4 arrives.



Update: A few more slides from AMD's presentation have made their way online, which gives away some additional details. First and foremost, the SRAM used for the 3D V-Cache is manufactured by TSMC on the N7 node.
AMD is referring to it as an "extended L3 Die" in the slides as well as a 64 MB L3 cache extension. The 3D V-Cache SRAM measures 41mm2 and AMD has designed two additional structural supports of the CCD to help with thermal dissipation.
To be able to fit everything into the same packaging as previous generation CPU's, AMD has had to thin the CCDs and L3 cache and the structural supports are also there to protect these thinned parts outside of the area covered by the 3D V-Cache.

 

-> https://videocardz.com/newz/intel-is-again-gaining-market-share-in-diy-cpu-market

Looks like Intel is going to reach ~50% DIY share for the first time in over 2 years again this week.

not helping:

• no 5800X3D release date
• no clear AM4 platform support communication
• currently worse price/perf ratio (depending on board)#AMD #Intel #AMDRyzen $AMD $INTL

— TechEpiphany (@TechEpiphany) February 22, 2022

 

AMD Ryzen 7 5800X3D is now being shipped out of the factory, could launch later this month

 

If slapping some cache to the existing 5800x can match or beat the 12900k im very excited about zen4.

 

Performance in games is in the memory performance, so I can't wait to test 5800x3d VS 12900k with 7000c30 48ns 112GB/s DDR5

 

It's going to be the match of the year.
At least, until the Zen4 vs Raptor Lake match up.

 

Got an 360 aio and im seeing constantly higher frequency now.

 

You've got a decent chip there!

 

@Undying My 2700x was a turd. Even with a custom loop, It took 1.45v to hit 4.3. And it barely would boost 4.1 with PBO tweaked.