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  2. DDR2 SDRAM - Wikipedia

    en.wikipedia.org/wiki/DDR2_SDRAM

    PC2-5300 DDR2 SO-DIMM (for notebooks) Comparison of memory modules for desktop PCs (DIMM) Comparison of memory modules for portable/mobile PCs (SO-DIMM) The key difference between DDR2 and DDR SDRAM is the increase in prefetch length. In DDR SDRAM, the prefetch length was two bits for every bit in a word; whereas it is four bits in DDR2 SDRAM.

  3. JEDEC memory standards - Wikipedia

    en.wikipedia.org/wiki/JEDEC_memory_standards

    1GB 2Rx4 PC2-3200P-333-11-D2 is a 1 GB DDR2 Registered DIMM, with address/command parity function, using 2 ranks of x4 SDRAMs operational to PC2-3200 performance with CAS Latency = 3, tRCD = 3, tRP = 3, using JEDEC SPD revision 1.1, raw card reference design file D revision 2 used for the assembly.

  4. DDR SDRAM - Wikipedia

    en.wikipedia.org/wiki/DDR_SDRAM

    The DDR4 SDRAM is a high-speed dynamic random-access memory internally configured as 16 banks, 4 bank groups with 4 banks for each bank group for ×4/×8 and 8 banks, 2 bank groups with 4 banks for each bank group for ×16 DRAM. The DDR4 SDRAM uses an 8n prefetch architecture to achieve high-speed

  5. DIMM - Wikipedia

    en.wikipedia.org/wiki/DIMM

    144-pin: SDR SDRAM, [8] sometimes used for DDR2 SDRAM; 200-pin: DDR SDRAM [8] and DDR2 SDRAM; 204-pin: DDR3 SDRAM; 260-pin: DDR4 SDRAM; 260-pin: UniDIMMs carrying either DDR3 or DDR4 SDRAM; differently notched than DDR4 SO-DIMMs; 262-pin: DDR5 SDRAM; MiniDIMM. 244-pin: DDR2 SDRAM; 256 MB MicroDIMM PC133 SDRAM (double sided, 4 chips). MicroDIMM ...

  6. Dynamic random-access memory - Wikipedia

    en.wikipedia.org/wiki/Dynamic_random-access_memory

    Double data rate SDRAM (DDR SDRAM or DDR) was a later development of SDRAM, used in PC memory beginning in 2000. Subsequent versions are numbered sequentially (DDR2, DDR3, etc.). DDR SDRAM internally performs double-width accesses at the clock rate, and uses a double data rate interface to transfer one half on each clock edge. DDR2 and DDR3 ...

  7. Memory module - Wikipedia

    en.wikipedia.org/wiki/Memory_module

    Two types of DIMMs (dual in-line memory modules): a 168-pin SDRAM module (top) and a 184-pin DDR SDRAM module (bottom). Memory modules of SK Hynix. In computing, a memory module or RAM stick is a printed circuit board on which memory integrated circuits are mounted.

  8. ThinkCentre M series - Wikipedia

    en.wikipedia.org/wiki/ThinkCentre_M_series

    Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... RAM: up to 4 GB PC2-5300 DDR2 SDRAM [12] Storage: 160 GB ...

  9. Synchronous dynamic random-access memory - Wikipedia

    en.wikipedia.org/wiki/Synchronous_dynamic_random...

    DDR SDRAM (sometimes called DDR1 for greater clarity) doubles the minimum read or write unit; every access refers to at least two consecutive words. Typical DDR SDRAM clock rates are 133, 166 and 200 MHz (7.5, 6, and 5 ns/cycle), generally described as DDR-266, DDR-333 and DDR-400 (3.75, 3, and 2.5 ns per beat).

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