200--->266 OK.
( Sometimes need to add voltage or your system will not stable )

266--->300 Don't do, please.
( Maybe it cause something happen by noise and Heat, or you like a machine hardly estimate that "SD31P" just a barebone )
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原廠散熱設計，並沒有針對超頻帶來的高溫&廢熱帶來些解決方案，
並且有效控制。但是倘若您願意犧牲些噪音&不方便性，或許可以。
無法體會時，謹記這段中文即可，以上 "僅" 就經驗做分享希望對您有助益。