결국.내가 질문하고,스스로 해결했네요 http://k.daum.net/qna/view.html?qid=4Zauo http://kin.naver.com/qna/detail.nhn?d1id=1&dirId=1010306&docId=130653632 http://ask.nate.com/qna/view.html?n=11208007

nforce의 특정HDD인식불량은 전례 있으며 http://www.ilovepc.co.kr/bbs/board.php?bo_table=qna&wr_id=14434&sfl=&stx=&sst=wr_hit&sod=asc&sop=and&page=98
2000 원활치 못한건 bios탓일 가능성 가장농후 http://todayhumor.co.kr/board/view.php?no=317681&table=humorbest

물론VGA의 직접적인 원인+책임은 없지만,간접적인 영향은 있겠죠?
더구나,전문가란 사람들이 너무 무관심+형식적인 답변만..검색도 하고,좀더 성의있게 답변하면 좋을텐데ㅉㅉ
암튼, 질문보단"검색"이 더욱 중요하며,나처럼 제성능 발휘토록 이동+사용(현실적이고 속편하죠)이 최선일듯