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iMac Intel 配有 21.5" Retina 4K 显示器(2017版)拆解

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iMac Intel 21.5" Retina 4K Display 2017 Teardown: stap 0, afbeelding 1 van 2 iMac Intel 21.5" Retina 4K Display 2017 Teardown: stap 0, afbeelding 2 van 2
  • It may not be as accessible as the (dead simple) RAM hatch found in the 27" iMacs—but still, this is a major win for upgradability over all the 21.5" iMacs with soldered RAM that we've encountered in recent years.

  • Before moving on, we take a moment to scope out the silicon these memory modules have to offer:

  • SK Hynix H5AN8G6NAFR-UHC 8 Gb DDR4 SDRAM (4 × 8 Gb = 4 GB per DIMM, 8 GB total)

  • Ablic (formerly Seiko Instruments) S-24C04A 4 Kb Serial EEPROM Memory

这也许不如27寸 iMac 配备的内存插槽那么容易接触。但无论如何,这是21.5寸 iMac 在内存焊接化以来,在可升级性方面的重大成就。

继续之前,我们一起看看内存上所示的资讯:

SK海力士H5AN8G6NAFR 8 Gb DDR4 SDRAM(4×8 Gb = 4 GB / DIMM,总共8 GB)

[* black] It may not be as accessible as the (dead simple) RAM hatch found in the 27" iMacs—but still, this is a ''major'' win for upgradability over all the 21.5" iMacs with soldered RAM that we've encountered in recent years.
[* black] Before moving on, we take a moment to scope out the silicon these memory modules have to offer:
- [* red] SK Hynix [https://www.skhynix.com/products.view.do?vseq=1925&cseq=73|H5AN8G6NAFR|new_window=true] 8 Gb DDR4 SDRAM (4 × 8 Gb = 4 GB per DIMM, 8 GB total)
+ [* red] SK Hynix [https://www.skhynix.com/products.view.do?vseq=1925&cseq=73|H5AN8G6NAFR-UHC|new_window=true] 8 Gb DDR4 SDRAM (4 × 8 Gb = 4 GB per DIMM, 8 GB total)
+ [* orange] Ablic (formerly Seiko Instruments) [link|https://www.ablic.com/en/semicon/datasheets/memory/dimm-serial-eeprom-spd/s-34c04a/|S-24C04A|new_window=true] 4 Kb Serial EEPROM Memory

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