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Passo 7
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:
  • 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

RAMは27インチモデルの iMacsに搭載されたRAMとは違って、簡単にはアクセスできません。しかし、近年発売された21.5インチモデルのiMacはRAMが半田付けされていたことを考えると、素晴らしいアップグレードと言えます。

次の作業に移る前に、これらのメモリーモジュールが付けられたシリコンを確認しましょう。

SK Hynix H5AN8G6NAFR 8 Gb DDR4 SDRAM (4 × 8 Gb = 4 GB per DIMM、合計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=truehttps://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
[* red] SK Hynix [https://www.skhynix.com/products.view.do?vseq=1925&cseq=73|H5AN8G6NAFR|new_window=truehttps://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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