Finally: Overclocking EPYC Rome ES

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shpitz461

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Sep 29, 2017
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RolloZ170 said:
not correct at all. der8auer overclocked EPYC 7601 to all core 3,8 Ghz and more on a supermicro h11ssl
and dual 7601 on a ASUS SP3 board.
afaik he used a customized ZenStates app. to overcome the OCP shutdown of the VRM unit he tweaked the VRM controller with ElmorLabs EVC device.
Click to expand...
Incorrect, der8auer used an Elmor EVC device to control the motherboard's IC externally. This should work with any motherboard that provides those IC pins.
In software, as far as I know, you can only O/C ES and QS chips (that have part # that ends in -04), and as far as I know it was only done on Naples and Rome (1st and 2nd gen Epyc).
 
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Keith Myers

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Oct 10, 2020
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Only the first generation Epyc, the 7001 series was remotely capable of overclocking.

AND it had to be an ES or Engineering release model . . . IOW the pre-production units with not yet locked down features and firmware and not close to production spec clocks.
 
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Keith Myers

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Oct 10, 2020
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Billyherington said:
I just don't quite know how to recognize that the "processor" is engineering.
It seems that can overclock the engineering processor?
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shpitz461 said:
Incorrect, der8auer used an Elmor EVC device to control the motherboard's IC externally. This should work with any motherboard that provides those IC pins.
In software, as far as I know, you can only O/C ES and QS chips (that have part # that ends in -04), and as far as I know it was only done on Naples and Rome (1st and 2nd gen Epyc).
Click to expand...
Can you provide a link to the source that showed Rome -04 units that were actually overclocked?
 
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Keith Myers

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Oct 10, 2020
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If you want to overclock an Epyc, you just purchase the Threadripper version of the cpu and motherboard.
 
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RolloZ170

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Apr 24, 2016
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shpitz461 said:
Incorrect, der8auer used an Elmor EVC device to control the motherboard's IC externally. This should work with any motherboard that provides those IC pins.
Click to expand...
exactly what i wrote.
he ran into OCP because of the high wattage (result of OC setting ),
so he disabled OCP of the VRM controller (I2C SMBus/PMBus) with EVC.
 
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SHD_Tech

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Jun 19, 2023
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Can confirm, with the H11DSI and ES/QS 7742 cpus you MUST have both cpus in to boot. I seem to recall the 05 skus are capable of booting a single cpu, but I havent taken my 05 out of production to test. the 04 sku will not boot in a single config
 
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RolloZ170

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Apr 24, 2016
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shpitz461 said:
In software, as far as I know, you can only O/C ES and QS chips (that have part # that ends in -04), and as far as I know it was only done on Naples and Rome (1st and 2nd gen Epyc).
Click to expand...
Roman used a retail 7601. OC with BIOS/software was ok up to x38 @1.25V , if higher he triggered the OCProtection of the VRM controller,

after that he used EVC to disable/tweak the OCP temporärily (can not not permanent stored with ECV)
if you run a CBR23 single thread test, the loaded core clocks up to 3,2Ghz not more, even the package power is only 60 watts,
so many headroom. if you where right the single loaded core should clock up until the package power reaches its limit,
means only the sky is the limit !
but it doesn't work.
what i am doing wrong then ???
 
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Pito

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Feb 19, 2024
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Hi, im looking for CPU and Mobo for my server, my question is what is better:
Epyc 7763 QS, and overclock it, or Epyc 7B13 - question is can i OC 7B13?
I need a lot of cores and as fast as they can be on multi and also single mode.

And what mobo is simply better for those CPUs:
Gigabyte MZ32-AR0 (rev. 3.x), or ASUS KRPA-U16 B1, and why?
Is it even possible to OC CPU on that Gigabyte mobo?

Is it worth paying attention to Exclusive Performance Boost technology -Core Optimizer, Engine Boost and Workload Presets?
 
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Billyherington

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Feb 4, 2024
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shpitz461 said:
Incorrect, der8auer used an Elmor EVC device to control the motherboard's IC externally. This should work with any motherboard that provides those IC pins.
In software, as far as I know, you can only O/C ES and QS chips (that have part # that ends in -04), and as far as I know it was only done on Naples and Rome (1st and 2nd gen Epyc).
Click to expand...
What is known about the "overclocking" of processors on the Milan architecture?
 
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RolloZ170

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Apr 24, 2016
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Billyherington said:
What is known about the "overclocking" of processors on the Milan architecture?
Click to expand...
naples 7601 was easy because they are unlocked, you can't do same with Milan,
you can just tweak up to the limits, and for this not all motherboards/BIOS are suitable.
 
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Billyherington

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Feb 4, 2024
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RolloZ170 said:
naples 7601 was easy because they are unlocked, you can't do same with Milan,
you can just tweak up to the limits, and for this not all motherboards/BIOS are suitable.
Click to expand...
Do you know how to overclock two "amd epyc 7551"? (non-engineering processors), supermicro h11dsi rev 2.0 motherboard.
 
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RolloZ170

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Billyherington said:
Do you know how to overclock two "amd epyc 7551"? (non-engineering processors), supermicro h11dsi rev 2.0 motherboard.
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no, i have not exact insides to overclock EPYC with BIOS or ZenStates4all. and the VRMs of the h11dsi allow not much more power.
if you look der8auer's video EPYC 7601 overclocking you see it is not capable of run OCed 24/7 with the VRMs of h11ssl.
 
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Billyherington

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Feb 4, 2024
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What kind of water cooling does the sp3/tr4 socket have?
Does anyone know that "water cooling" under amd epyc is not bad?
What water cooling options do you know?
 
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gsrcrxsi

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Dec 12, 2018
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Billyherington said:
What kind of water cooling does the sp3/tr4 socket have?
Does anyone know that "water cooling" under amd epyc is not bad?
What water cooling options do you know?
Click to expand...
Why would it be bad? Or any worse or different than any other watercooling?

there are plenty of sTR4 waterblocks. And they are compatible with SP3 EPYC also.
 
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RolloZ170

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Apr 24, 2016
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Fityro said:
I have absolutely no knowledge of programming or anything like that :)
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if you have the programm already you don't need programming.
Fityro said:
Can this program help overclock vendor unlocked ES milan?
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yes. and read the OC report again what a motherboard is required
" the specialist had to use a custom motherboard designed for hyperscale datacenters and featuring an enhanced voltage regulation module. With the AMD EPYC Overclocking utility, they increased power limits to 1500W "

vendor unlocked(not vendor locked) <> unlocked (for OC)
you need unlocked CPU.
 
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