Zen 3 Owners 5xxx Series Memory Discussion

[t4t3r]

Why leave your tRFC untuned? Leaving more performance on the table with it set more than twice as high as it could be.

 

[hihihi8]

Hey yall, crosspost from LTT, but I wanted to post my newest DRAM overclocking specs and results on the 5000 series chips:

CPU: 5950x
Mobo: ROG Crosshair 8 Dark Hero
DRAM Kit: 64GB Quad-stick kit - G.Skill F4-3600C14Q-64GVK (Ripjaws 5) Factory-rated 14-15-15-35 @1.45v
PSU: AX1500i

My results: 3733MHz, 1866FCLK, 14-13-13-33 timings (note that it is actively cooled with a fan, will soon be WC'd)

Full BIOS Settings:

DRAM Freq: 3733MHz
FCLK Freq: 1866MHz
DRAM Voltage: 1.55v
CPU SOC Voltage: 1.2v
Primary DRAM Latencies: 14-13-13-13-33
Trc: 42
TrrdS: 4
TrrdL: 6
Tfaw: 24
TwtrS: 4
TwtrL: 12
Twr: 12
TrdrdScl: 3
TwrwrScl: 3
Trfc: 288Tcwl: 14
Trtp: 8
Cmd2T: 1T
Gear Down Mode: Enabled
Power Down Enable: Disable
CPU Current Capability: 110%
VDDSOC Phase Control: Extreme
DRAM Current Capability: 130%
DRAM Power Phase Control: Extreme
DRAM Switching Freq: 400KHz
PBO: Enabled