Safe voltages for overclocking Ryzen 1800X

bollix4

Commendable
Jan 14, 2018
12
0
1,510
I typically replace mobo and CPU every 5 years, so that's what I'm aiming for in terms of lifespan, hopefully with a bit of residual value at the end. I managed to get 4.0 GHz from 1.45 V, running R15's render test at around 68 °C with a final score of 1726 cb points. It just dies if I try 1.4 V or less, but I haven't tweaked it any more than that as I heard 1.4 V and above isn't really safe for every day usage, even if the temps aren't all that high. So I've rolled it back to 3.95 GHz at 1.375 V and it's giving me around 1695 cbp at 62 °C, and I can run the 1344k test on Prime 95 for over half an hour without any issues and it pretty much averages around 50 °C or so. This sound good? Do you think I could get a little more? Roll it back a bit?

I've got a Gigabyte Aorous (or however you spell it) gaming 5, Corsair Vengeance LPX 2400 Mhz DDR4, 280mm radiator cooling and a 750W XFX silver rated PSU.

Another thing is that I heard you should increase the DDR4 voltage to increase system stability. I've put it up to 1.3 V at the moment. Again, good idea? Bit more? Bit less?
 
1.45v is about maximum to push for any Ryzen. I doubt you could feel any difference between 3.95 and 4GHz and price in higher voltage is not worth it. You can see it by temperature differences. On the other and, Ryzen responds well to higher frequency of RAM so if you could raise it a bit without sacrificing latency it would really help.
See my sig ? I'm getting same results with my 1700x at 3.825 GHz on account of 3000MHz RAM at Cl12.
 


Good call. I kept the CPU where it's at and OC'd the RAM to 2933 MHz @1.3 V and still on default Cl16 latency and now I'm getting 1728 cb points and the graphics test has gone up from 94.5 to 97.1 fps (forgot to mention that the FPS stopped increasing just on CPU OCing alone from 3.95 to 4.00 GHz). You reckon I could push it a bit further or does that sound good? As I say it's 2400 MHz Cl16 DDR4. It's also a single 16GB stick so it's not as if I've got 4 sticks crammed in there or anything.
 
I like to push my systems as far as they can go but without sacrificing stability and temperatures. This is also when "Silicone lottery" comes into effect. it goes for processor and any single element in the system. it works perfectly at some voltage and booom for next few Hz it wants high step up in voltage.
You'd get better RAM scores if you run them in dual channel, 2*8GB would do even better. DDR4 can take even 1.4 - 1.5v without damage and overheating but latency is also important. If latency goes up by 2 on account of higher frequency, you are getting practically nothing in lieu of performance.
 


OK, well I tried to go up to 3066 MHz but the computer throws me a memory error on boot up. Do you reckon hitting a higher voltage would cure this? And well I suppose I was interested in the idea of having 64 gig of ram at some point in the future, not that I'm probably ever going to need that much 😀
 
You could try RA up to 1.45v without ill effects but it's almost certain that CL will go up, loosing most of effect.
Also when you fill up all RAM slots, RAM oc is restricted so you may have to balance between frequency and amount.
 


I tried going up to 1.45 V but she cannae take any more, cap'in! It just gives me 3 beeps on the motherboard if I try doing any more than 2933 so I guess that must be pretty much that as far as this RAM is concerned. I tried changing the latency to see if I could get any performance boost that way, but the numbers started creeping up for some reason, so I just locked it down on its default values and it seems to be stable. I managed to get 99.4 fps on the cinebench test, so I'm pretty much happy with what I've got now as a decent stable overclock. Cheers for your help.