DIMM | 雙列直插式記憶體模組

  • 雙列直插式記憶體模組是什麼?
    DIMM全名是dual in-line memory module,中文名稱是雙列直插式記憶體模組、或稱雙線記憶體模組,是隨機存取記憶體(RAM)的一種。DIMM的外觀跟其他記憶體相似,是一塊長條印刷電路板,上面安裝記憶體晶片,透過針腳連接主機板。

    DIMM是市面上最普遍的記憶體模組之一,支援64位元記憶體資料匯流排,資料傳輸速率不但比32位元的單列直插式記憶體模組(SIMM)更快,功耗也更低。常見的DIMM種類包含UDIMMs(無緩衝雙列直插式記憶體模組)、FB-DIMM(全緩衝雙列直插式記憶體模組)、RDIMM(帶寄存器雙列直插式記憶體模組)、LRDIMM(低負載雙列直插式記憶體模組)、SO-DIMM(小外形雙列直插式記憶體模組)、MicroDIMM和UniDIMM。

  • 為何需要?
    運算能力再強大,如果記憶體跟不上處理器效能,也無濟於事。容量更大、資料傳輸速率更快的DIMM,可以將硬碟的資料更快傳給CPU,讓伺服器承擔更大的工作負載。挑選最先進的DIMM產品,可以節省成本,提升伺服器的整體效能。

  • 技嘉的特色
    技嘉科技的伺服器產品,包括H系列高密度伺服器G系列GPU協同運算伺服器R系列機架式伺服器S系列儲存伺服器,大多採用最新的RDIMM/LRDIMM DDR4。RDIMM(帶寄存器雙列直插式記憶體模組)的特色是,在記憶體模組和記憶體控制器之間安裝寄存器,當作記憶體模組和記憶體控制器之間的緩衝裝置,可降低控制器的負擔,提升系統穩定性。LRDIMM(低負載雙列直插式記憶體模組)和RDIMM的概念類似,只是在資料線和位址線之間,增加額外的緩衝裝置,進一步降低控制器的負載,提高系統效能與速率。DDR4則是最先進的「雙倍資料率」高頻寬DRAM(動態隨機存取記憶體),比前世代的DRAM資料傳輸速率更快、功耗更低。技嘉科技的伺服器產品搭配最先進的DIMM,達到最高效能。

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