Hello Soichiro-san,
I found document about PC specification with 19.x Electronics desktop below. that is bit old version but it is fine for you I guess.
https://support.ansys.com/knowledgeresources/getfile?fn=sy00531.pdf&fp=%2Fsolutions%2Fattach%2Fsy00531.pdf
I also recommend you should submit service request about your question to customer portal.
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