Overclocking EPYC 9004 Genoa (Trying)

[Pb-207]

I bought this EPYC 9654 ES (100-000000894-04, some people call it QS) in Mar. last year and trying to overclock recently.

I tried a lot but found it limited to 3.7GHz & 400W(PPT), so looking for some help.

Some attempts:

Modifying UEFI variables using ru.efi and Smokeless_UMAF:
There are some hidden options in BIOS, I modified them.
OC Mode: Auto -> Customized
Custom PState0: Auto -> Custom
PState0 Freq: 5000
BoostFmaxEn: Auto -> Manual
BoostFmax: 5000
TDP Control: Auto -> Manual
TDP: 700
PPT Control: Auto -> Manual
PPT: 700
HSMP Support: Auto -> Enable
For BIOS version 1.1a, 1.4 and 1.6, no significant difference observed after resetting. For BIOS version 1.0, BoostFreq changed from 3.5GHz to 3.7GHz.

Overclocking via SMU commands (using SMUDebugTool):
RSMU Commands:
0x5D(EnableOcMode):
Request: 0; Response: CMD Rejected Prereq;
0x5F(SetOverclockFreqAllCores):
Request: 3700; Response: CMD Rejected Prereq;
0x60(SetOverclockFreqPerCore):
Request: 3700; Response: CMD Rejected Prereq;
0x56(SetPPTLimit):
Request: 700000; Response: OK;
0x57(SetTDCVDDLimit):
Request: 400000; Response: OK;
0x58(SetEDCVDDLimit):
Request: 400000; Response: OK;
0x6D(GetPBOScalar):
Request: 0; Response: 0x3F800000;
0x5B(SetPBOScalar):
Request: 0x3F800000; Response: CMD Rejected Prereq;
HSMP Commands:
0x05(SetSocketPowerLimit):
Request: 700000; Response: OK;
0x06(GetSocketPowerLimit):
Request: 0; Response: 400000; (I did this after 0x05)
0x07(GetSocketPowerLimitMax):
Request: 0; Response: 400000; (I did this after 0x05)
0x08(SetBoostLimit):
Request: 5000; Response: OK;
0x09(SetBoostLimitSocket):
Request: 5000; Response: OK;
0x0A(GetBoostLimit):
Request: 0; Response: 3700; (I did this after 0x08 & 0x09)

Here are the SMU commands I found:

And some benchmarks:

 

[Pb-207]

Limited to 3.7GHz and 400W PPT

 

[Pb-207]

An photo of an overclocked EPYC 9654 ES I found on a 2nd-hand platform

 

[bayleyw]

That might be a dual socket system, the number of cores in Task Manager looks awful high...

 

[Pb-207]

That might be a dual socket system, the number of cores in Task Manager looks awful high...

That's single socket, you can see in Cinebench.

 

[Pb-207]

That might be a dual socket system, the number of cores in Task Manager looks awful high...

And in this photo, you can see 1600+ cb single core.

 

[bayleyw]

And in this photo, you can see 1600+ cb single core. View attachment 34583

neat, do you have a source? might be time to just ask the guy how the OC was done.

 

[Pb-207]

neat, do you have a source? might be time to just ask the guy how the OC was done.

He refuse to answer.

 

[Pb-207]

neat, do you have a source? might be time to just ask the guy how the OC was done.

I guess MP1 mailbox smu command would work, but I don't know the commands. Looking for command id for SMU MP1 V11

 

[RolloZ170]

That might be a dual socket system, the number of cores in Task Manager looks awful high...

this shows not not cores, logical processors (192)

 

[slidermike]

I am not an expert but when I was looking into a sample cpu prior to purchasing a retail chip, I was told that the pre-prod samples may or maynot be able to do the same things and that includes OC'ing headroom.

That said, have you tried following the previous gen OC directions?
In my limited understanding, there should not be a diff in how to OC this gen over the previous couple.

I have the Milan and was able to follow the steps for the previous gen without issue.


Good luck either way!

 

[Pb-207]

I am not an expert but when I was looking into a sample cpu prior to purchasing a retail chip, I was told that the pre-prod samples may or maynot be able to do the same things and that includes OC'ing headroom.

That said, have you tried following the previous gen OC directions?
In my limited understanding, there should not be a diff in how to OC this gen over the previous couple.

I have the Milan and was able to follow the steps for the previous gen without issue.


Good luck either way!

Thx a lot. This is what I considered. But the same method used to overclock Rome and Milan didn't work on my Genoa chip, and they are all 'QS'(100-000000xxx-04). I don't why, so I consider there's something changed on Genoa.

 

[slidermike]

Clearly you did your homework and what I am going to say is just verbalizing that which you already know.

default 2.4ghz all core, max boost 3.7ghz single core.
Getting 3.7ghz on all cores (stable) is good imo.

The mobo has to have the VRMs and ability to overclock & cooler has to be able to dissipate the heat.


My not an expert opinion is the cpu/mobo is either locked or thermal limited.



All AMD guides: https://www.amd.com/en/processors/tu...pe%3Aepyc_9004
Workload tuning guide: https://www.amd.com/system/files/doc...d-workload.pdf

I wish you the best of luck!

 

[bayleyw]

He refuse to answer.

do you have a taobao link? I can see if I can get a response in Chinese.
I also vaguely remember seeing something about various software bugs which result in inflated benchmark scores a while back, but don't have the link handy...

 

[Pb-207]

do you have a taobao link? I can see if I can get a response in Chinese.
I also vaguely remember seeing something about various software bugs which result in inflated benchmark scores a while back, but don't have the link handy...

Actually, I have his WeChat, can asked him via WeChat, but he refused to tell anything.

 

[autoturk]

hi! do you have any updates on your overclocking journey? Just to clarify, none of those settings did anything until you downgraded your H13SSL to 1.0?

 

[DkmenchaR]

Hey guys! I'm building a personal HomeLab desktop, since recently got a good price for an 16 core EPYC 9124, but I don't know what motherboard should go with.... Already have some parts, just need to get a board and respective dimms for it:

2x U.2 PM9A3 1.92TB Gen4 x8 for RAID 0 (main storage)
2x 3.5 SATA Seagate Exos 8TB (Backups)
1x M.2 2280 980 Pro Gen4 2TB (boot drive)
EPYC 9124 + CoolerMaster SP5 heatsink with Noctua Fans
PRIME-TX 1300 Seasonic
PNY VERTO RTX 4090

I've contacted ASUS for a K14PA-U12 in Portugal its 570 Euros without tax (maybe allows me some kind of OC, since I've had Z9PE-D8 WS before and i could just raise BCLK, don't know how it is with AMD though)
Supermicro boards does not support OC at all?! Around 600 + Shipping
AsRockRack does not use standard 24pin atx no 12 channel boards (so far), might need a specific PSU unit?! Still need to contact about pricing and availability...

I just want to have the option to OC the CPU at least, otherwise I would just get a Threadripper somehow... Will I be able to RAID 0 without have to include an Broadcom MegaRAID controller?! should i use MCIO or waste pci-e slots?
I have lot's of doubts, I can't even find much information on GENOA builds... I'm following this thread to also help me with some insight and make most of the budget, of course you can just throw money at the problem, but I'm more of a price/performance balance guy!

 

[autoturk]

Hey guys! I'm building a personal HomeLab desktop, since recently got a good price for an 16 core EPYC 9124, but I don't know what motherboard should go with.... Already have some parts, just need to get a board and respective dimms for it:

2x U.2 PM9A3 1.92TB Gen4 x8 for RAID 0 (main storage)
2x 3.5 SATA Seagate Exos 8TB (Backups)
1x M.2 2280 980 Pro Gen4 2TB (boot drive)
EPYC 9124 + CoolerMaster SP5 heatsink with Noctua Fans
PRIME-TX 1300 Seasonic
PNY VERTO RTX 4090

I've contacted ASUS for a K14PA-U12 in Portugal its 570 Euros without tax (maybe allows me some kind of OC, since I've had Z9PE-D8 WS before and i could just raise BCLK, don't know how it is with AMD though)
Supermicro boards does not support OC at all?! Around 600 + Shipping
AsRockRack does not use standard 24pin atx no 12 channel boards (so far), might need a specific PSU unit?! Still need to contact about pricing and availability...

I just want to have the option to OC the CPU at least, otherwise I would just get a Threadripper somehow... Will I be able to RAID 0 without have to include an Broadcom MegaRAID controller?! should i use MCIO or waste pci-e slots?
I have lot's of doubts, I can't even find much information on GENOA builds... I'm following this thread to also help me with some insight and make most of the budget, of course you can just throw money at the problem, but I'm more of a price/performance balance guy!

I don't think you can overclock Retail epyc chips. You can adjust the cTDP to whatever is allowed by AMD but that just affects the boost clock if you have cooling/power headroom. You need an engineering sample/QS version of a Genoa CPU to do any overclocking. You can check out this thread on the previous generations of Epyc to get a sense of what the process looks like: https://forums.servethehome.com/index.php?threads/finally-overclocking-epyc-rome-es.28111/

 

[Davith]

Hello here, I just wanted to say thank you to Pb-207.
I found your post while trying to unlock my memory for my 9654ES.

I don't have your QS, but the early ES the DDR5 is locked at 3600Mhz.
SuperMicro is hidding the CBS options on H13SSL, so no way to to anything.

I tried your Smokeless_UMAF and bingo, all the CBS options where there, including the possibility to "Oc" my memory back to 4800.

 

[rtim]

Actually, I have his WeChat, can asked him via WeChat, but he refused to tell anything.

PB Any success in your overclocking project. I am in a similar boat with 9554. I noticed that the RAM was at 2400G speed, and I changed it to 4800 using Somekeless_UMAF, but it didn't do anything. I see that the task manager changed its display to 4800, but the Cinebench score is the same. thanks