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feat: 内存
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y4n9b0 committed Sep 29, 2024
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36 changes: 34 additions & 2 deletions _posts/2024-09-19-Memory-stick.md
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## 三星

[内存官网](https://semiconductor.samsung.com/cn/dram/ddr/){:target="_blank"}
[三星内存官网](https://semiconductor.samsung.com/cn/dram/ddr/){:target="_blank"}

![secret-box]({{ '/styles/images/memory-stick/samsung-memory-stick-marked.jpg' | prepend: site.baseurl }}){:width="585" height="auto"}

![secret-box]({{ '/styles/images/memory-stick/samsung-memory-stick-back.jpg' | prepend: site.baseurl }}){:width="585" height="auto"}

如上两图是 32G ddr5 笔记本内存的正反面,由于三星官方目前没有放出 ddr5 相关产品文档,咱们结合目前的
[DDR4 Product Guide](https://download.semiconductor.samsung.com/resources/product-guide/DDR4_Product_guide_May.18.pdf){:target="_blank"}
来解读内存条上相关文字编号的意义。

![secret-box]({{ '/styles/images/memory-stick/samsung-sdram-module-information.png' | prepend: site.baseurl }}){:width="750" height="auto"}
几乎所有的内存条都包含两个主要的信息区:颗粒信息标识(橙色框)和 label 标签(红色框)。
* 颗粒信息是内存颗粒厂商(主要有三星、海力士、镁光、长江存储等)标识颗粒生产日期、批次等信息,
* label 标签是内存条品牌厂商标识内存相关信息,内存条品牌厂商自己并不一定生产内存颗粒,而是使用内存颗粒厂商的产品搭配 PCB 板、控制芯片进行组装,比如金士顿、海盗船、联想等。

一般地,label 标签中的编号也会包含部分颗粒信息,如果这部分交叉的信息对不上,那么基本可以确定内存条为假条子。当然假条子的说法可能并不准确,毕竟内存颗粒全世界就那么几家厂商能生产,
这种东西可不是深圳小作坊就能雕刻出来的。信息对不上只是表明这肯定不是原厂出厂状态,存在人为二次加工痕迹,这类假条子大多存在虚假指标、品质不稳定、没有售后保障等问题。<br>
一般情况下,强烈建议购买内存颗粒厂商自有的品牌内存条,近水楼台先得月的道理大家都懂,毕竟颗粒生产过程中有良品率、同批次不同体质等问题。

![secret-box]({{ '/styles/images/memory-stick/samsung-label-example.png' | prepend: site.baseurl }}){:width="750" height="auto"}


![secret-box]({{ '/styles/images/memory-stick/samsung-sdram-module-information.png' | prepend: site.baseurl }}){:width="750" height="auto"}


![secret-box]({{ '/styles/images/memory-stick/samsung-sdram-memory-information.png' | prepend: site.baseurl }}){:width="750" height="auto"}


https://zhuanlan.zhihu.com/p/335016746

https://tieba.baidu.com/p/7820154100

https://tieba.baidu.com/p/7763152927

颗粒信息

第一行:“SEC 843”重要信息为843代表内存颗粒生产日期

第二行:“K4A4G08”重要信息为4G08代表内存颗粒容量和位宽——4Gb 8位颗粒(AG代表容量为16Gb)

第三行:“5WT BCTD”重要信息为T、TD,T代表颗粒版本我这个就是T-DIE。TD代表内存频率和时序,TD为 2666 C19、RC为2400 C17、PB为2133 C15、 第四行:角标 目前不知道有何定义

sec 425

sec 是 Samsung Electronics Co. 首字母的缩写
Expand All @@ -70,8 +97,13 @@ sec 是 Samsung Electronics Co. 首字母的缩写
## 海力士


![secret-box]({{ '/styles/images/memory-stick/skhynix-memory-stick.jpg' | prepend: site.baseurl }}){:width="585" height="auto"}

## 镁光


![secret-box]({{ '/styles/images/memory-stick/micron-memory-stick.jpg' | prepend: site.baseurl }}){:width="585" height="auto"}

英睿达

图中左边二维码下面的数字就是 物料号 (MATERIAL NUMBER),物料号下面的是 零件号 (PART NUMBER)
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