My R5 1600 is a dud: gotta choose between 3.6GHz @ stock and 3.75GHz @ 1.375v

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h3r3t1k

h3r3t1k

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EDIT: It's a 1600!

I first checked how far I can get with the stock 1.2375v because some people reported getting as far as 3.8GHz. What I got was 3.6GHz stable which is still a 400MHz OC "for free". Thing is there is a voltage "wall" and any significantly higher clocks demand exponentially higher voltages. Now when you look for safe 24/7 voltages some say 1.4v is fine, some say just 1.35v. I chose the middle ground as my max value: 1.375v. What I get stably at that voltage is just 3.75GHz. It runs a little hotter but I got good aftermarket air cooling so nothing to worry about.

Now what would you choose for your gaming rig? 3.6GHz on all cores and say goodbye to 3.7GHz XFR on 2 cores or go for 150MHz more on all cores with more power draw and a little more heat?
 
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i have my 1600 O.C to 3.85GHz on auto voltage. but its weird because if i try and manually to to set the voltage to 1.35v it wont boot. but on auto it runs about 1.30v-1.35v. i can get it to boot at 3.9GHz but its not stable. i have the same issue with the ram my rated at 3200MHz but i can only boot at 2933MHz
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delaro

delaro

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For one thing you shouldn't start a overclock messing with Voltage, leave that at auto and change the multiplier usually to X36 "3600mhz" This is where RAM speed matters if your running 2133mhz or 2400mhz CL16 your going to have to overclock the RAM as high as you can get and preferable drop the CL down to 14 or 15. Once you Overclocked your RAM as high as it will get Stable continue bumping the multiplier up by X2 and benching with Prime95 for stablilty, when you hit a wall THEN you mess with the core voltage.

On a B350 board I have yet to see a Chip that wont hit 3.7 and X370 boards 3.9 to 4ghz without even touching core voltage.

This explains things pretty well but it leaves out one thing. @ 3.8 ghz that is where heat starts to become a issue, the Spire coolers get overloaded on a Benchmark and where you should consider a aftermarket cooler like a 212 Evo or better.

http://www.overclockers.com/amd-ryzen-overclocking-guide/
 
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h3r3t1k

h3r3t1k

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Did you read what I said? Pushing clocks without messing with the voltage is exactly what I did. My Trident Z is running at 2933MHz as per QVL.
 
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delaro

delaro

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Read it yes.. didn't see that..no...it was early for me I tend to miss things. Which version of Trident Z do you have? CL14 or CL16? If you have CL16 change the timing to CL14 and see if you can go beyond 2933, also did you take the 4.4 update? I see quite a few people having Overclock issues after that.

I had Asrock AB350 Pro4 that would not take go beyond 3.8ghz no matter what I tried but I could take those same chips and stick them in my Tachi and they would hit 3.9 to 4ghz with just the multiplier. Thats not saying all Pro4 are bad just not that one.



1.55V 0.o are you sure you know what your doing? 95c is the limit but 84c is where the throttling starts.
 
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h3r3t1k

h3r3t1k

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@eliendrel: I think 1.45v is the absolute max for short term OCs. You are far beyond that. Don't claim to be an expert tho.

@delaro: Thanks for taking the time. So I have this voltage wall after 3.7GHz. I've tested 3.7GHz to be stable at 1.275v while 3.75GHz requires 1.375v which is disappointing. I could check what 1.4 or 1.425v does for clocks but I'm not inclined because that's too high for 24/7 operation in my book without expensive (~50€) air cooling. I'm happy with 3.7GHz, a 500MHz OC at just .0375v above stock.

Regarding RAM: The RAM is this: https://www.gskill.com/en/product/f4-3200c16d-16gtzb (CL16)

I first tried the XMP settings for 3200MHz and it did boot but wasn't stable. I then just selected 2933MHz which is stable as mentioned in the mobo QVL. So the settings were still the ones from the XMP profile except clock.

BIOS is the newest one: 4.6.
 
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starwars4zoe

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i have my 1600 O.C to 3.85GHz on auto voltage. but its weird because if i try and manually to to set the voltage to 1.35v it wont boot. but on auto it runs about 1.30v-1.35v. i can get it to boot at 3.9GHz but its not stable. i have the same issue with the ram my rated at 3200MHz but i can only boot at 2933MHz
 
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