Jun 26, 2018
60
0
540
I've got 2 G.Skill Ripjaws V F4-3200C16D-8GVKB.

Here's my system specs.

MSI B450M Bazooka Plus (BIOS 7B90v18)
Ryzen 3 1200 overclocked @ 3.8GHz @ 1.35V

Currently, the RAMs can't go beyond 3200MHz. I tried using Ryzen DRAM Calculator (imported profile from Thaiphoon Burner, complete HTML report) but any doesn't stay stable anything beyond 3200MHz. Even 3333 MHz isn't stable at high voltages (DRAM 1.4V). Anytime I change the SoC voltage, the system becomes unstable.

My questions are,
  • Is this a good RAM kit to overclock? I'm currently trying to tighten the timing but I wonder whether this RAM kit is good enough to handle anything beyond 3200.
  • Can this be a problem with my mobo? The official page of MSI states that this mobo supports up to 3333.
  • Could this also be an issue with the processor? I know that Ryzen 1st gen lineup has a bad reputation for the bad memory controller. SoC voltage change also causes issue with stability.
 
i have fatality gaming x, which has trash ram traces, atleast its 6 layered
my ram is f4-3200c14d-32gtzr
on qvl max supported speed 2933
with xmp 2933 works like magic
anything 3000~3333 requires manual timing changes (not main timings)
with xmp and default mobo ram training above 3333 (my mobo maximum) it barely posts and if i manage to get to memtest i get hundreds/thousands of errors within few seconds
to stabilise link (reduce jitter) i set following for 3466:
RttPark = 80ohm (rzq/3)
RttNom = 48ohm (rzq/5)
AddrCmdDrvStr = 40ohm

with this change jitter is reduced, and i get like 40 errors in memtest (1pass)
then some timing changes (mostly refresh and write delay related) for 4 pass with 0 errors

CAD/RTT/procODT settings are based on your mainboard traces and your ram modules, on net there are some general guidances (based on ram modules), but they are usualy done on something like asus croshair mobos (which cant be compared with mine trash mobo)
not even ryzen dram calculator asks you for your mobo trace topology
edit: just noticed ryzen dram calculator has now mobo selection (partially)
 
Last edited:
Jun 26, 2018
60
0
540
i have fatality gaming x, which has trash ram traces, atleast its 6 layered
my ram is f4-3200c14d-32gtzr
on qvl max supported speed 2933
with xmp 2933 works like magic
anything 3000~3333 requires manual timing changes (not main timings)
with xmp and default mobo ram training above 3333 (my mobo maximum) it barely posts and if i manage to get to memtest i get hundreds/thousands of errors within few seconds
to stabilise link (reduce jitter) i set following for 3466:
RttPark = 80ohm (rzq/3)
RttNom = 48ohm (rzq/5)
AddrCmdDrvStr = 40ohm

with this change jitter is reduced, and i get like 40 errors in memtest (1pass)
then some timing changes (mostly refresh and write delay related) for 4 pass with 0 errors

CAD/RTT/procODT settings are based on your mainboard traces and your ram modules, on net there are some general guidances (based on ram modules), but they are usualy done on something like asus croshair mobos (which cant be compared with mine trash mobo)
not even ryzen dram calculator asks you for your mobo trace topology
edit: just noticed ryzen dram calculator has now mobo selection (partially)

Your RAM is with better quality dies for sure (3200 @ CL 14 guaranteed) where mine is sloppy (3200 @ CL 16). Guess there's a catch there.

Will try tweaking those settings. Hopefully, can stabilize around 3400.
 
Jun 26, 2018
60
0
540
3200cl12 / 3466cl14 :p
anyway...if u get hundreds of errors in memtest, no POST or bsod in windows, its signal link issue, which gets resolved with procodt/rtt/cad settings
few errors here and there is timings related

In my case, I boot into Windows, run Prime95 for 5 mins and workers stop for hardware failure. Then, BSOD and reboot.
In some cases, no boot and have to BIOS Flashback.

Can you please tell the step-by-step guide on how did you overclock your RAM? Like, changing a value, checking stability and proceeding further? What option sequence did you use?
 
oh well step by step what i did
set up xmp
increased ddr voltage to 1.4
increased soc voltage to 1.2
changed frequency to 3466
after few fail to boot, managed to boot -> booted memtest
got tons of errors on first test
reboot
changed proc odt one up one down to see diff in memtest (amount of erros within 30seconds)
no change here
so went to rtt settings
changed rtt_nom one up one down to see diff in memtest
and like that continued with other rtt/cad settings until it got reasonably stable