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“”公平与正义“”
原帖由 262674 于 2008-10-17 10:30 发表 等阵 按理a卡、n卡都有问题 怎么老任用的就是a卡,没事。ps3用n卡,又没事?
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原帖由 自然韵律 于 2008-10-17 22:38 发表 If you actually read academic studies and participate in engineering, you would know that high-lead solder is much more reliable to fatigue,electro-migration, and also creates a much less stressful package dueto the decrease in collapse height during processing. Going with eutectic solder is only for cost reduction and only for small die size applications.