The same manufacturer has two models with better performances (supposedly):
https://www.coolserver.com.cn/en/product_view_598_283.html
https://www.coolserver.com.cn/en/product_view_634_283.html
I've just got a 7502 QS by 900$ inebay. Just lucky since as Markfw points out good prices are almost gone.
For motherboards, you can easily find ASROCK EPYCD8-2T and now the newest ROME2D8-2T in Europe.
https://geizhals.de/asrock-rack-romed8-2t-a2284480.html?hloc=at&hloc=de
Dual socket...
Did you check the during the AVX2/FMA3 load test the CPU's frequency and CPUpwm temperature sensor?
I'd would like to know the same results but setting cTDP to 180watts in BIOS, if you have spare time and want to dedicate the time.
Do you intend to dedicate it to distributed computing...
Very nice system @StefanR5R, I've seen from others with the same processors you should be able to reach aroun 3,2GHz all core boost. Please tell us back on how it performs.
In BIOS: Advanced -> CPU Configuration -> cTDP Control
It should be set to "Auto", you can try 240 and to check if it has some effect. Based on the clock stretch issue, through some kind of benchmark, or crunching some WCG Cancer units.
Thanks @StefanR5R for the data, very useful. I've read somewhere that AMD do not want to state all core boost values for Zen2 and has rewritten the max boost frequency notes to indicate it is just for a single core.
@Markfw, your CPU is a little mystery, which motherboard are you using so we...
My understanding is that 2.25 GHz is the base clock, roughly the minimum clock at which it will perform any operation. On top of that, there will be a frequency boost based on thermal stress and cTDP (simplified). 7742 maximum cTDP is 240 watts, 3990x is 280watts, no that higher. So sure in my...
Thanks for the explanation!.
It has to be the case of this sample, as an ES it should not have properly tuned the firmware. Odd in any case as it seems a close to production sample. Surely no the case of retail processors.
Could it be also partially related to the cTDP value in BIOS that...
Is there any other explanation for this apparent contradiction? Could the WCG crunching times due to other reason? It seems difficult that the linux commands are giving a wrong value,.. or no?
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