跳转到主内容

发布于 2012 年 6 月, 型号 A1278. Intel 处理器,支持 Turbo Boost, 最多 512 MB DDR5 显存

1624 个问题 查看全部

I broke of a component on the motherboard but MacBook still works

i broke of MMBT3904LP-7 DFN1006-3 but i dont know what the component does, the macbok does still work

Block Image

Block Image

已回答! 显示答案 我也有这个问题

这是一个好问题吗?

得分 1
添加一条评论

1个答案

已选择的解决方案

That’s a diode on the line that seems to be carrying thermal info from CPU to SMC. Although the Mac may boot without it, it would be a very good idea to replace it and avoid running the machine without it to avoid possible more serious damage.

这个答案有帮助吗?

得分 2

4条评论:

@arbaman I thought the MMBT3904LP-7 was made by Diodes International but was actually a 40V NPN SMALL SIGNAL TRANSISTOR in a SFN1006 case.... :-)

完成的

This is the input to the CPU from SMC to push it into Safe mode which lowers the CPU's clocking so the system does not overheat when SMC encounters a thermal or voltage failure.

完成的

@oldturkey03 Lol, you're right, I confess I didn't read the datasheet, just the google headings =:)

完成的

Wel for the time being, I will use Mac fan control app to prevent overheating with a custom fan curve until I have the time to repair it

完成的

添加一条评论

添加你的答案

Tan Rui Isaac 将永远感激不已
浏览统计数据:

过去 24 小时: 0

过去 7 天: 0

过去 30 天: 0

总计 61