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AMD Ryzen 5000 Builders Thread

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Kenmitch

Diamond Member
Oct 10, 1999
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I wound up doing a fresh install of Windows 10 Pro 20H2 as I noticed some performance anomalies with boosting behavior in certain applications. I usually do a fresh install when a new version comes out, but I was eager to play this time so I just upgraded and swapped in the 5600x.

Not a huge difference on the latency, but every little bit less counts. I might have to revisit the timings and see if I can break the 50ns barrier. My boosting behavior looks normal in the apps I've tested so far. If I enable PBO in Ryzen Master my all core loaded clocks hit 4550MHz in CBr20 and the few other apps I've tested so far.

If you compare the time to my earlier posting it does look like it's not just a anomaly with the latency.

5600x_4000_CL15.jpg
 

JoeRambo

Senior member
Jun 13, 2013
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It's respectable.
~same as single CCX SKU 3300X from previuos gen, minus extra 2-3ns AMD optimized away. I think most improvements beyond this come from higher IF clocks and 1.5V driven B-Die capabilities. Still very decent improvements in ZEN3.
 

DisEnchantment

Senior member
Mar 3, 2017
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AMD released the RyzenMaster SDK and I tried it quickly and it seems excellent.
It can read frequencies really, really fast. But if I read it too fast the frequencies went up because my app is using CPU :grinning:
Libraries are C++ only, so you can build a quick UI with Qt5 for good performance. But I started it with WPF thinking I will reuse some parts on Linux but then I recollect the library is Windows only :(
I even added a json middlerware to route it to an asp.net core SPA because ....
I got all values read by the SDK in the Model in my dll and reporting to the C# UI thread, but I am now preparing a view. However, I am thinking of using my RPi3 to drive its LCD inside instead with values I send over from the app.
I got, TDC/EDC/Clocks/Temps/ and many more


1606085624217.png
 

Kenmitch

Diamond Member
Oct 10, 1999
8,252
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AMD Unveils Precision Boost Overdrive 2 To Amp-Up Ryzen 5000 Performance Even Further (hothardware.com)

I decided to play around with the above on my 5600x. Gives a nice single core boost, but not much on the all core.

This is what I changed in the uEFI. I changed the Max CPU Boost Clock Override to 200, but once the setting are saved and rebooted they show 0MHz when going back into the uEFI. I thinks there's a bug? If you change anything in the uEFI you have to input 200 again and save and exit or no more extra boost.

curve optimizer_+300_boost.PNG

Using CBr20 to test. Single core boost 4825-4850MHz all core 4525-4575MHz. Nice single core boost! All core boost didn't have much gain over just enabling PBO.

curve optimizer_CBr20.png

I'm going to increase the negative offset a little more and see what happens. I tried 10 the 1st time and system rebooted.
 
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Kenmitch

Diamond Member
Oct 10, 1999
8,252
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136
I guess the only fear I had about swapping in the 5900x was the FCLK potential. I haven't tried anything higher yet, but at least I'm good to go at 4000MHz still. I just swapped it in this AM so I haven't really had too much time to play around with it yet. After playing around for a while I'm going to do a fresh install of Windows....Some say it's not a requirement, but I'm one of those just in case end users!

5900x_4000_CL15a.png

There was a little bit of a latency penalty compared to the 5600x, but I think I can live with it.

5600x_4000_CL15.png
 
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lightmanek

Senior member
Feb 19, 2017
233
413
106
I guess the only fear I had about swapping in the 5900x as the FCLK potential. I haven't tried anything higher yet, but at least I'm good to go at 4000MHz still. I just swapped it in this AM so I haven't really had too much time to play around with it yet. After playing around for a while I'm going to do a fresh install of Windows....Some say it's not a requirement, but I'm one of those just in case end users!

View attachment 34618

There was a little bit of a latency penalty compared to the 5600x, but I think I can live with it.

View attachment 34619
Damn! Your RAM is clocking well! I guess you are running 2 sticks?
I made my set of Samsung B-Die stable at 3840MHz CL18-17-16 and the rest of subtimings tweaked, but my best latency was 56.8ns and 56GB/s Read.
 

Kenmitch

Diamond Member
Oct 10, 1999
8,252
1,862
136
Damn! Your RAM is clocking well! I guess you are running 2 sticks?
I made my set of Samsung B-Die stable at 3840MHz CL18-17-16 and the rest of subtimings tweaked, but my best latency was 56.8ns and 56GB/s Read.
Yep! and yes I'm only running 2 sticks. I'm thinking my kit was produced during the crazy high DDR4 pricing and wasn't really binned well, if at all....I wouldn't min

Can your kit do 3600 CL14? With tight timings you could shave off a couple ns's and not lose any bandwidth....Viewing my 3600 CL14 snip a couple posts above for reference.

What kit do you have? The dual rank 32GB one?
 

lightmanek

Senior member
Feb 19, 2017
233
413
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Yep! and yes I'm only running 2 sticks. I'm thinking my kit was produced during the crazy high DDR4 pricing and wasn't really binned well, if at all....I wouldn't min

Can your kit do 3600 CL14? With tight timings you could shave off a couple ns's and not lose any bandwidth....Viewing my 3600 CL14 snip a couple posts above for reference.

What kit do you have? The dual rank 32GB one?
G.Skill Tident Z RGB F4-3600C16D-16GTZR
At least in 4 DIMM configuration, my kit fails at 3600 CL14, it will do 3333 CL14 with 1.4V. I need to try it with only 2 DIMMS at some point, but 3820MHz CL18-17-16 is not bad, considering it's 4 sticks. Tonight, I've tried pushing 3866MHz and it failed miserably :D, not detecting CPU, so I guess IF had enough at 1933MHz. Now I'm struggling to get back to my stable 3820MHz, heck even XMP 3600 CL16 was giving me memory errors. Need to clear BIOS and start from scratch me thinks!

EDIT: forgot to mention that I never tried more than 1.45V on my memory, maybe it's time to give em some volts? Just need to place a fan blowing on DIMM's as there is no air-flow there due to Water Cooling.
 

Kenmitch

Diamond Member
Oct 10, 1999
8,252
1,862
136
G.Skill Tident Z RGB F4-3600C16D-16GTZR
At least in 4 DIMM configuration, my kit fails at 3600 CL14, it will do 3333 CL14 with 1.4V. I need to try it with only 2 DIMMS at some point, but 3820MHz CL18-17-16 is not bad, considering it's 4 sticks. Tonight, I've tried pushing 3866MHz and it failed miserably :D, not detecting CPU, so I guess IF had enough at 1933MHz. Now I'm struggling to get back to my stable 3820MHz, heck even XMP 3600 CL16 was giving me memory errors. Need to clear BIOS and start from scratch me thinks!

EDIT: forgot to mention that I never tried more than 1.45V on my memory, maybe it's time to give em some volts? Just need to place a fan blowing on DIMM's as there is no air-flow there due to Water Cooling.
4000MHz takes 1.5v's on my kit. I have the Corsair iCUE 220T case with 2 140mm's up top as exhaust. They're cooling my memory and VRM heatsinks.

I use the MB's overclock profiles for different memory clocks. Quick and easy to switch or restore them when I tinker around.

I just need to score a reference 6800 (XT) and I'll be set. They're the largest that will fit as my AIO is front mounted. Reference 5700 in there now with maybe 3/4" of clearance.
 

lightmanek

Senior member
Feb 19, 2017
233
413
106
4000MHz takes 1.5v's on my kit. I have the Corsair iCUE 220T case with 2 140mm's up top as exhaust. They're cooling my memory and VRM heatsinks.

I use the MB's overclock profiles for different memory clocks. Quick and easy to switch or restore them when I tinker around.

I just need to score a reference 6800 (XT) and I'll be set. They're the largest that will fit as my AIO is front mounted. Reference 5700 in there now with maybe 3/4" of clearance.
I have 9 fans in my case, but Thermaltake Core X9 is soooo freaking huge, that there is virtually no air moving around RAM and VRM's :laughing:

Sample pic

 

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