英特尔和AMD所有采用了钎焊的CPU是?是不是硅脂用了几年就会干,而钎焊不用担心这个问题?
推荐回答(3个)
英特尔i5 2550k以前的部分i5,i7 2700k以前部分四核i7,所有旗舰级i7 920 990x 3960x 4960x 5960x 6950x 7950x是钎焊
至于AMD,古董三四核六核和部分双核是钎焊,现在的fx也是。
是的,钎焊的CPU不会堆积热量,所以一般不会发生干了情况。
钎焊所用的散热填充材料是低熔点金属,或者称作“液态金属”。金属的导热能力比硅脂好很多。而且硅脂使用时间太久,忽冷忽热的温差变化,会逐渐变干变硬。所以使用钎焊的CPU,要比用硅脂的,在散热方面有优势。但钎焊的成本也比硅脂高。
钎焊
是指低于焊件熔点的钎料和焊件同时加热到钎料熔化温度后,利用液态钎料填充固态工件的缝隙使金属连接的焊接方法称。钎焊时,首先要去除母材接触面上的氧化膜和油污,以利于毛细管在钎料熔化后发挥作用,增加钎料的润湿性和毛细流动性。根据钎料熔点的不同,钎焊又分为硬钎焊和软钎焊。
硅脂
硅脂是由精炼合成油作为基础油稠无机稠化剂,并加有结构稳定剂、防腐蚀添加剂精制而成,具有良好的防水密封性、防水、抗溶剂性和抗爬电性能,不腐蚀金属,与橡胶多具有较好的适应性,用于卫浴器材、密封圈、电子电气行业的防水密封及润滑。
看具体情况的,
硅脂这玩意作为cpu die和顶盖之间导热填充物很早就开始用了,貌似农企最先搞,不过只在低端
cpu用,这规则一直延续到现在——FM平台的APU硅脂,AM平台的FX钎焊。intel以前很良心,赛
扬D都是钎焊,应该是LGA775开始学amd也用硅脂了,酷睿2据老司机说是低端双核用硅脂,高端
四核用钎焊。intel 22nm以后竟然在2000多块钱的i7k也开始用硅脂了,而且还是极其廉价的,导
致发热严重,超频能力下降。饱受诟病后4790k也只是升级了下硅脂材料,根源并没解决。毕竟金
属材料导热系数是硅脂远不能及的,市面
硅脂干了只要不超继续用,cpu里面不加电压温度也就那个熊样。
钎焊u 771志强 e8400 qxxxx 至尊u比如3960x 990x(后面部分至尊u是硅脂) i7 960 970之流 i3 550一半是钎焊,显卡是硅脂 e5 e7 e3 v1
i7 870 i5 750都是硅脂对应的x3470 x3430都是硅脂。但是i5 650是一半硅脂 一半钎焊
i5 2300级别钎焊 i3 2100 崩腾之流硅脂
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