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Ryzen 3900X thread

What are people getting from the 8Pack 3600 kit in terms of timings? I'm running 16-16-16-36 at the moment. tRC though is at 82 which seems a bit high. DRAM Calculator says I can run it at 44, which then seems too low. What are people here running at?
 
Steedie said:
What are people getting from the 8Pack 3600 kit in terms of timings? I'm running 16-16-16-36 at the moment. tRC though is at 82 which seems a bit high. DRAM Calculator says I can run it at 44, which then seems too low. What are people here running at?
Click to expand...

I have struggled to get mine to run even at base timings stably, although I'm a n00b come RAM OC'ing. Though I would have expected to run at XMP and the RAM OC'ing was just more performance.

I'd be interested to know your timings if you ever have the time to post them. What DRAM voltage are you running with the RAM at it's native timings? Thanks in advance.
 
Just to add to the mix, running a noctua NH-D15 dual fan, 3600Mhz 32GB in XMP, MEG ACE x570 mobo. I've just run the RealBench stress test for 15 mins, highest I saw was 75 degrees... prime95'd it for 15 mins on small FFT's and was in the low 60's. On the blended tests in prime95 it spiked to 78.6 briefly.

Doesn't sound too bad compared to the 360mm rads you guys are running :cool:
 
This is true. To to be honest I watercooled to to keep my 2080ti cool which runs at 40 - 45ish. That's my priority. As long as the CPU don't explode,whatever !
 
Steedie said:
What are people getting from the 8Pack 3600 kit in terms of timings? I'm running 16-16-16-36 at the moment. tRC though is at 82 which seems a bit high. DRAM Calculator says I can run it at 44, which then seems too low. What are people here running at?
Click to expand...

I always use tRC = (tRP+tRAS) +2

So if you're running 16,16,16,36 set tRC to 54

If stable, tighten to just tRC = tRP+tRAS (52)
 
Boot_Loop said:
Willy waving but mine boots in under 10 seconds using a 960 Pro m.2 drive as boot. People shouldnt put up with much less. Turn on Fast Boot, get rid of log-in screen, jack up ram speeds etc
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the real question is, did people do fresh installs or move the install as it can impact boot times negatively simply just moving an install to a new platform for example. for example i get 22seconds boot, with fast boot enabled, csm disabled, fast ram; by not moving the install. but im lazy and cba with a resinstall. a reinstall would get me sub 10 i would imagine.
 
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Boot_Loop said:
Willy waving but mine boots in under 10 seconds using a 960 Pro m.2 drive as boot. People shouldnt put up with much less. Turn on Fast Boot, get rid of log-in screen, jack up ram speeds etc
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You know there sometimes is a bug with Ryzens and Fast boot right ??

https://forums.overclockers.co.uk/t...ot-hurts-performance-amd-only.18819142/page-2

Thats I'w tested it back and forth and could replicate it. Tahts Why sometimes Benchmark scores are Higher sometimes Lower reboot after reboot.

I'w been playing with Ryzens for so long I know most of problems they have that normal users wont notice :D
 
Mine boots in around 8 seconds, using a 960 Evo boot drive. However, that was only after I messed around with some BIOS settings, there are a lot in there that will slow the boot process down that are easy to miss. SMART checks, POST delays, legacy boot checks etc. Turning all those off made a HUUUUGE difference
 
Settled with my golden sample 3900x at 4.25Ghz 1.23vcore
4-25-Ghz-1-24-V.png
 
Silicon Lottery AMD Ryzen 3000 Pre-Binned CPUs:
CPU Name AVX2 Frequency Voltage %Capable Price
Ryzen 9 3900X 4.20 GHz 1.250V Top 6% $839 US
Ryzen 9 3900X 4.15 GHz 1.237V Top 35% $619 US
Ryzen 9 3900X 4.10 GHz 1.225V Top 68% $559 US
Ryzen 9 3900X 4.05 GHz 1.212V Top 87% $529 US
Ryzen 9 3900X 4.00 GHz 1.200V Top 100% $499 US
Ryzen 7 3800X 4.30 GHz 1.300V Top 20% N/A
Ryzen 7 3800X 4.25 GHz 1.287V Top 53% N/A
Ryzen 7 3800X 4.20 GHz 1.275V Top 100% N/A
Ryzen 7 3700X 4.15 GHz 1.262V Top 21% N/A
Ryzen 7 3700X 4.10 GHz 1.250V Top 74% N/A
Ryzen 7 3700X 4.05 GHz 1.237V Top 100% N/A
From Wcctech
 
bro306 said:
Silicon Lottery AMD Ryzen 3000 Pre-Binned CPUs:
CPU Name AVX2 Frequency Voltage %Capable Price
Ryzen 9 3900X 4.20 GHz 1.250V Top 6% $839 US
Ryzen 9 3900X 4.15 GHz 1.237V Top 35% $619 US
Ryzen 9 3900X 4.10 GHz 1.225V Top 68% $559 US
Ryzen 9 3900X 4.05 GHz 1.212V Top 87% $529 US
Ryzen 9 3900X 4.00 GHz 1.200V Top 100% $499 US
Ryzen 7 3800X 4.30 GHz 1.300V Top 20% N/A
Ryzen 7 3800X 4.25 GHz 1.287V Top 53% N/A
Ryzen 7 3800X 4.20 GHz 1.275V Top 100% N/A
Ryzen 7 3700X 4.15 GHz 1.262V Top 21% N/A
Ryzen 7 3700X 4.10 GHz 1.250V Top 74% N/A
Ryzen 7 3700X 4.05 GHz 1.237V Top 100% N/A
From Wcctech
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I don’t get there binning process tbh the 3800x prebinned at 4.3ghz at 1.3v but the 3900x is 4.2ghz at 1.25v.

I think I got lucky with my cpu it’s stable at 4.3ghz at the1.2875v which if it was a 3800x on there site it would have been a top 3800x but since it’s a 3900x I’m. It sure lol
 
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