• Guest, The rules for the P & N subforum have been updated to prohibit "ad hominem" or personal attacks against other posters. See the full details in the post "Politics and News Rules & Guidelines."

Help with OC on an R5 3600 + GA X570 Gaming X please

NoturnoJpop

Junior Member
Jul 25, 2019
4
0
6
Hello everybody good morning, how are you? Yesterday I bought my R5 3600 with MB Gigabyte X570 Gaming X and I would like help with OC, because I could only reach 4.3ghz setting Vcore 1.4 .... As for temperatures ok, because I have a Watercooler with car radiator that set up and is not heating anything! The motherboard has several OC options and would like help to keep a stable and secure OC without risk! Thank you !
 
Last edited:

DownTheSky

Senior member
Apr 7, 2013
675
61
91
4.3 is about the max you will get out of a 3600 at safe voltages. These new ryzen chips don't OC very well.
 

moinmoin

Golden Member
Jun 1, 2017
1,664
1,610
106
Since in Ryzen 3k the cores are binned differently OC will only ever reach the frequency of the lowest performing core. Stock with PB should give you better performance at higher power efficiency than any OC.
 

DrMrLordX

Lifer
Apr 27, 2000
16,051
5,009
136
But is it safe to have 1.4 vcore?
Depends on what you are running. The more current you draw, the more vcore you can give it without promoting degradation. The only solid information we have right now comes from The_Stilt.

If you are running something AVX2-intensive (like Prime95, Linpack, or anything that behaves similarly), then the max "safe" vcore is around 1.325v with variations based on the CPU.

For some non-SIMD applications that are lightly-threaded or single-threaded, vcore up to 1.475 may be safe.

So you really need to look at current draw and compare it to something like Prime95 @ 1.325v. Bear in mind that current draw does go up with increased voltage, so be careful.

Also, I respect the car radiator OC! Too bad "big water" doesn't seem to help Matisse much. I'm thinking chilled mineral oil might be a better way to go unless you're willing to go more extreme.

edit: here is some sample data from my 3900x, which is basically 2xR5-3600.

Prime95 is the most intense workload I have run thus far. Small FFTs. Running this benchmark at 1.2875v (medium LLC to prevent vdroop), I get peak current of 135a according to HWiNFO64 and 138a according to Ryzen Master. Sustained current seems to be around 130a.

So that should give you some idea of how much current you can push @ 1.325v . Maybe a little bit more since raising vcore above my limit above would raise draw as well. I can't test Prime95 SmallFFTs @ 1.325v since my system would probably hit the 95C temp limit. I get 77C in the above test. That's with a custom water loop using a MO-RA3 (slightly smaller than your rad, I suspect). I am guessing the theoretical limit of 1.325v is achieved somewhere around 140-145a. You will not reach that without some kind of active cooling.

CBR20 which uses Embree with "some AVX code" @ 1.325v (Medium LLC) showed peak current of 106a. I'm guessing some more vcore would be "safe" here but it's impossible for me to say how much more . . . current draw tracks with voltage. If I raise vcore to 1.35v (for example) then current peak goes to 112a in this benchmark. Temps are still lower than with Prime95 SmalFFTs though.

CBR15 uses . . . SSE4.1a? No AVX. Running 1.325v (Medium lLC) showed peak current of 103a.

That's should give you some ideas. Again, be careful! And if you see something pushing your CPU to 95C or near it when above 1.325v then maybe you should back off! Nothing should be making you run hotter than Prime95.
 
Last edited:

scannall

Golden Member
Jan 1, 2012
1,676
1,046
136
At this time, for gaming you are better off leaving it at stock with a good cooling solution. That may change in the future with bios updates. But for now, just leave it at stock.
 

DrMrLordX

Lifer
Apr 27, 2000
16,051
5,009
136
At this time, for gaming you are better off leaving it at stock with a good cooling solution. That may change in the future with bios updates. But for now, just leave it at stock.
If he's already got 4.2 GHz all-core then he may not get higher boost clocks, even with PBO.
 

moinmoin

Golden Member
Jun 1, 2017
1,664
1,610
106
If he's already got 4.2 GHz all-core then he may not get higher boost clocks, even with PBO.
To be stable all core OC is always the lowest common denominator frequency across all cores though. PB will allow better cores to boost higher, fixed frequency OC won't.
 

DrMrLordX

Lifer
Apr 27, 2000
16,051
5,009
136
To be stable all core OC is always the lowest common denominator frequency across all cores though. PB will allow better cores to boost higher, fixed frequency OC won't.
On a 3600? I haven't seen one go past 4.3 GHz in any scenario.
 

thor23

Member
Jul 13, 2019
77
20
41
4.3Ghz = winning the silicon lottery, will it still hold that frequency if you lower vcore a little? 1.4v should be OK, though i wouldn't run that high myself.
 

ASK THE COMMUNITY