Ryzen 3000 - Timings, voltage & temps (3600C16)

[i_am_jon]

I'm running a 3900x on Aorus x570 Ultra with GSkill 4x8GB 3600C17 (b-die). Trying to tighten up the timings to at least 3600C16 but not managed 100% Prime95 stable yet.

The 1usmus DRAM calculator doesn't have a Ryzen 3 profile yet, are the gen 2 settings ok to use?

If I set "Profile version" to V1 the Safe timings are 14-15-15-15-30. Not trying to push that far would rather keep volts down so selected V2 & Fast giving 16-17-16-32. Either way it's suggesting 1.45v, seems a bit high to me. Temps are already getting up to 40 degrees on 3600C17 at 1.36v, think having 4 sticks stifles the airflow around them.

Do I need to be going straight to 1.4v+, what voltage / temps are considered safe?
Is it ok to just set the main 5 timings in the BIOS and leave the rest to auto or do they all need setting manually?
Latency is already 71ns @ 3600C17, are the gains worth it?
How far are people pushing the timings, volts and temps?

 

[i_am_jon]

Ram: 4x8GB 3600C17 (GSkill: B-die)
Timings: 3600Mhz 16-17-16-32-1T @ 1.40v
Mobo: X570 Aorus Ultra (Bios: F4d Agesa: 1.0.0.3)
CPU: Ryzen 3900x (Stock / PBO)
AIDIA64 Read: 56,509 MB/s (Was: 54,700 MB/s)
AIDIA64 Latency: 67.1 ns (Was:70.5 ns)

I tried using all the main DRAM calculator settings for V2 Profile / Fast (skipped: misc, termination block and cad_bus) for 3600Mhz 16-17-16-32-1T @ 1.44v and this is what I ended up with. Seems stable in Prime95 and RAM temps are maxing out at 41 degrees.

Could probably tweak it a bit more but already spent too long messing with them. Sure the voltage will come down a bit if I try (Edit: down to 1.40v now).



Edit: Added key details to head, thanks @Orange Nexus

 

[i_am_jon]

prime95 is not the way to test ram guys

hci memtest or karhu ramtester for windows.

GSAT for linux.

HCI will only test 1.8GB per instance and I have 32GB so should be running 18 instances for a full test?

Edit: Running now, 30% and no errors but RAM's up to 46 degrees according to HWMonitor. Only 55 degrees on the CPU despite 70%+ load. Systems running a bit slow though

....Whats wrong with prime95? It was good enough for my Q6600.