Finally: Overclocking EPYC Rome ES

[Jazek]

Can we overclock the ram in gigabyte mobos? get 2666mhz and oc them up to 3200¿?

 

[efschu3]

You must unlock the AMD CBS menu in your UEFI file and flash it back. Probably you need a spi programmer for that.

And that's only the menu - if it will boot, or not, with oc settings... no one can tell you.

 

[FIIZiK_]

Anyone has any idea how to identify an OEM vs Retail? Have not found any ES samples anywhere. And I am not seeing any cpu with -04 as per original post.
I have found one CPU with serial "9HW2263M00174" and one "4359124M0009".

 

[RolloZ170]

Anyone has any idea how to identify an OEM vs Retail? Have not found any ES samples anywhere. And I am not seeing any cpu with -04 as per original post.

-04 means engineering sample, (QS are eng.samples too)
AMD EPYC ES <geoship

 

[FIIZiK_]

-04 means engineering sample, (QS are eng.samples too)
AMD EPYC ES <geoship

Thanks for the reply, I ended up buying the "4359124M0009" as they mentioned they are OEM taken from HP systems and not vendor locked. Will test on my H11DSI-NT. Thankfully they accept returns if it does not work.

 

[RolloZ170]

Thanks for the reply, I ended up buying the "4359124M0009" as they mentioned they are OEM taken from HP systems and not vendor locked. Will test on my H11DSI-NT. Thankfully they accept returns if it does not work.

the serial says noting about the model.
a retail/tray looks like this
AMS EPYC 9124

 

[FIIZiK_]

the serial says noting about the model.
a retail/tray looks like this
AMS EPYC 9124

Link does not work

 

[shpitz461]

Here's an example of an -04 (used to be considered as 'QS' and should work in retail motherboards, not sure if that's the case with Genoa and newer):

https://i.ebayimg.com/images/g/k4QAAOSwrmNkzHp9/s-l1600.webp

Note the CPU model #: 100-000000332-04

Here's the item: AMD EPYC 64 CORE PROCESSOR CPU 100-000000332-04 | eBay

You can just search on eBay using the CPU model and post-fix with '-04'.

 

[RolloZ170]

Can I disperse it? "Amd epyc 7k62"

overlocking ?
no. 7K62 has fused max. boost multiplier = multiplier locked.

 

[Black6spdZ]

anyone enabled CBS menu on the newest v3 H11DSi bios? Also, is the PCIe Gen locked to 3 or can 4 be enabled?

 

[shpitz461]

It won't be a good idea since the ES is usually clocked much lower, and might be missing CPU features. That's if the system can even boot.

 

[shpitz461]

QS is closer in frequencies to retail, but there's still a difference, so you won't be able to get 2x the performance.
QS is less problematic, I don't see a reason why it wouldn't work.
But who knows...

 

[RolloZ170]

Install amd epyc 7742qs and amd epyc 7742 processors in the h12dsi-nt6 i motherboard - will it work?
I will overclock amd epyc 7742qs, because amd epyc 7742 will not be able to overclock. There will be only one overclocked processor.Because the second amd epyc 7742qs cannot be found in Russia.

both processors must be same base clock, core count and L3. the BIOS may refuse to work, just try.
( AMD says both processors must same OPN )

 

[RolloZ170]

OPN - How do I find out and what does it look like?

https://www.amd.com/en/resources/support-articles/faqs/PIBRMASD.html