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8GB RAM Replacement for Micron MTA9ASF1G72PZ-2G9 | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Micron MTA9ASF1G72PZ-2G9 | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772479890
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  • $119.99 
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4GB RAM Replacement for Hynix HMA451U7AFR8N-UH | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Hynix HMA451U7AFR8N-UH | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772480117
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  • $41.56 
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8GB RAM Replacement for Micron MTA9ASF1G72AZ-2G6E1 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Micron MTA9ASF1G72AZ-2G6E1 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Micron Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-2077
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  • $129.99 
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16GB RAM Replacement for HP 934798-001 | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
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16GB RAM Replacement for HP 934798-001 | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: NE-PNR-1740
  •  
  • $149.99 
8GB RAM Replacement for Hynix HMA81GU7DJR8N-XN, HMAG68EXNEA | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Hynix HMA81GU7DJR8N-XN, HMAG68EXNEA | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1861
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  • $144.99 
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4GB RAM Replacement for Hynix HMA451R7AFR8N-UH, HMA451R7MFR8N-UH | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Hynix HMA451R7AFR8N-UH, HMA451R7MFR8N-UH | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772478978
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  • $25.29 
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64GB RAM Replacement for HP 726724-B21, 752373-091, 752373-G91, 774176-001, M4Z04AA | DDR4 2133MHz PC4-17000 ECC LRDIMM 4Rx4 Server Memory
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  • $210.17 
A-Tech 16GB (2x8GB) 1Rx8 PC4-23400E DDR4 2933 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 16GB (2x8GB) 1Rx8 PC4-23400E DDR4 2933 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT8G2D4D2933ES8N12V
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  • $269.98 
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8GB RAM Replacement for Samsung M393A1K43BB0-CRC | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Samsung M393A1K43BB0-CRC | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772479845
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  • $71.23 
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16GB RAM Replacement for Micron MTA18ADF2G72AZ-2G3, MTA18ASF2G72AZ-2G3, MTA18ASF2G72AZ-2G3B1 | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
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  • $149.99 
16GB RAM Replacement for Hynix HMA42GL7MFR4N-TF | DDR4 2133MHz PC4-17000 ECC LRDIMM 2Rx4 Server Memory
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16GB RAM Replacement for Hynix HMA42GL7MFR4N-TF | DDR4 2133MHz PC4-17000 ECC LRDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: 5053772479715
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  • $119.99 
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32GB RAM Replacement for Micron MTA36ASF4G72LZ-2G6, MTA36ASF4G72LZ-2G6D1 | DDR4 2666MHz PC4-21300 ECC LRDIMM 2Rx4 Server Memory
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32GB RAM Replacement for Micron MTA36ASF4G72LZ-2G6, MTA36ASF4G72LZ-2G6D1 | DDR4 2666MHz PC4-21300 ECC LRDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: 5053772478060
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  • $238.88 
16GB RAM Replacement for Samsung M391A2K43DB1-CVF | DDR4 2933MHz PC4-23400 ECC UDIMM 2Rx8 Server Memory
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16GB RAM Replacement for Samsung M391A2K43DB1-CVF | DDR4 2933MHz PC4-23400 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772479555
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  • $219.99 
8GB RAM Replacement for HP 3TQ39AA, 3TQ39AT, 4UY11UT, 879505-B21, 879526-091 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for HP 3TQ39AA, 3TQ39AT, 4UY11UT, 879505-B21, 879526-091 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772484924
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  • $129.99 
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128GB RAM Replacement for Samsung M393AAG40M3B-CYF | DDR4 2933MHz PC4-23400 ECC RDIMM 4Rx4 Server Memory
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128GB RAM Replacement for Samsung M393AAG40M3B-CYF | DDR4 2933MHz PC4-23400 ECC RDIMM 4Rx4 Server Memory
  • Chipset: Samsung Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Rank: 2S2Rx4 (4Rx4)
  • Model #: NE-PNR-2302
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  • $1,253.99 
Black Diamond Memory 64GB ECC Registered DDR4 2400 (PC4 19200) Server Memory Model BD64G2400MQR96
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  • $588.99 
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Kingston KSM26ES8/8HD 8GB DDR4 SDRAM Memory Module - 8 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC - Unbuffered - 288-pin - DIMM
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Kingston KSM26ES8/8HD 8GB DDR4 SDRAM Memory Module - 8 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC - Unbuffered - 288-pin - DIMM

OUT OF STOCK

  • Brand: Kingston
  • Series: Premier Series
  • Capacity: 8GB
  • Speed: DDR4 2666 (PC4 21300)
  • Model #: KSM26ES8/8HD
  • COMING SOON
G.SKILL G5 Neo Series 256GB (8 x 32GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G32GE8-G5N
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G.SKILL
G.SKILL G5 Neo Series 256GB (8 x 32GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G32GE8-G5N

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Neo Series
  • Capacity: 256GB (8 x 32GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: F5-6400R3239G32GE8-G5N
  • COMING SOON
A-Tech 16GB (2x8GB) 1Rx8 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 16GB (2x8GB) 1Rx8 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT8G2D4D2933RS8N12V
  •  
  • $219.73 
  • Free Shipping
Supermicro Certified MEM-DR340L-CL05-ER13 | Micron 4GB PC3-10600 DDR3 1333MHz 2Rx8 Dual Rank ECC RDIMM Registered 240-Pin Server Memory RAM
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  • $39.04 
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G.SKILL G5 Series 384GB (8 x 48GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G48GE8-G5
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G.SKILL
G.SKILL G5 Series 384GB (8 x 48GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G48GE8-G5

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Series
  • Capacity: 384GB (8 x 48GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: F5-6400R3239G48GE8-G5
  • COMING SOON
G.SKILL G5 Series 384GB (8 x 48GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model F5-6000R3036G48GE8-G5
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G.SKILL
G.SKILL G5 Series 384GB (8 x 48GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model F5-6000R3036G48GE8-G5

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Series
  • Capacity: 384GB (8 x 48GB)
  • Speed: DDR5 6000 (PC5 48000)
  • Model #: F5-6000R3036G48GE8-G5
  • COMING SOON
Kingston KTH-PL432/64G DDR4 3200MT/s ECC Registered DIMM CL22 2RX4 1.2V 288-pin 16Gbit
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Kingston KTH-PL432/64G DDR4 3200MT/s ECC Registered DIMM CL22 2RX4 1.2V 288-pin 16Gbit

OUT OF STOCK

  • CAS Latency: CL22
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: KTH-PL432/64G
  • COMING SOON
4GB RAM Replacement for Kingston KVR24E17S8/4 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Kingston KVR24E17S8/4 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1965
  •  
  • $38.81 
  • Free Shipping
16GB RAM Replacement for Cisco UCS-MKIT-164RX-D, 15-13255-01 | DDR3 1333MHz PC3-10600 ECC RDIMM 4Rx4 Server Memory
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16GB RAM Replacement for Cisco UCS-MKIT-164RX-D, 15-13255-01 | DDR3 1333MHz PC3-10600 ECC RDIMM 4Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Rank: 4Rx4
  • Model #: NE-PNR-1566
  •  
  • $39.99 
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32GB RAM Replacement for IBM-Lenovo 47J0176, 90Y3104, 90Y3105, 90Y3106, 90Y3107, EM53, EM5D | DDR3 1333MHz PC3L-10600 ECC LRDIMM 4Rx4 Server Memory
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  • $81.99 
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8GB RAM Replacement for Micron MT18JDF1G72PDZ-1G6, MT18JSF1G72PDZ-1G6E1 | DDR3 1600MHz PC3-12800 ECC RDIMM 2Rx8 Server Memory
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8GB RAM Replacement for Micron MT18JDF1G72PDZ-1G6, MT18JSF1G72PDZ-1G6E1 | DDR3 1600MHz PC3-12800 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Rank: 2Rx8
  • Model #: 5053772478190
  •  
  • $39.04 
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8GB RAM Replacement for IBM-Lenovo 00D4988, 00D4989 | DDR3 1600MHz PC3-12800 ECC RDIMM 1Rx4 Server Memory
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8GB RAM Replacement for IBM-Lenovo 00D4988, 00D4989 | DDR3 1600MHz PC3-12800 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Rank: 1Rx4
  • Model #: 5053772485600
  •  
  • $39.04 
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Supermicro Certified MEM-DR332L-SL01-LR18 | Samsung 32GB PC3-14900 DDR3 1866MHz 4Rx4 Quad Rank ECC LRDIMM Load Reduced 240-Pin Server Memory RAM
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  • $64.99 
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4GB RAM Replacement for HP 733036-581, E2Q91AA | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for HP 733036-581, E2Q91AA | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772483606
  •  
  • $26.60 
  • Free Shipping
4GB RAM Replacement for Hynix HMT351U7AFR8C-G7, HMT351U7BFR8C-G7 | DDR3 1066MHz PC3-8500 ECC UDIMM 2Rx8 Server Memory
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4GB RAM Replacement for Hynix HMT351U7AFR8C-G7, HMT351U7BFR8C-G7 | DDR3 1066MHz PC3-8500 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL7
  • Voltage: 1.50V
  • Rank: 2Rx8
  • Model #: 5053772479043
  •  
  • $26.60 
4GB RAM Replacement for Samsung M393B5273DH0-YK0 | DDR3 1600MHz PC3-12800 ECC RDIMM 2Rx8 Server Memory
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4GB RAM Replacement for Samsung M393B5273DH0-YK0 | DDR3 1600MHz PC3-12800 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Samsung Chipset
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Rank: 2Rx8
  • Model #: NE-PNR-2180
  •  
  • $39.04 
  • Free Shipping
4GB RAM Replacement for Synology RAMEC1600DDR3-4GBX2 | DDR3 1600MHz PC3-12800 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Synology RAMEC1600DDR3-4GBX2 | DDR3 1600MHz PC3-12800 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772488885
  •  
  • $26.60 
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4GB RAM Replacement for Dell A2626076, A3965765, A4051430, A4188257 | DDR3 1333MHz PC3L-10600 ECC RDIMM 2Rx4 Server Memory
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4GB RAM Replacement for Dell A2626076, A3965765, A4051430, A4188257 | DDR3 1333MHz PC3L-10600 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Rank: 2Rx4
  • Model #: 5053772481633
  •  
  • $29.30 
  • Free Shipping
Black Diamond Memory 16GB (2 x 8GB) ECC Unbuffered DDR4 2133 (PC4 17000) Server Memory Model BD8GX22133MQO22
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  • $699.99 
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8GB RAM Replacement for Samsung M393A1G43DB1-CRC, M393A1G43EB1-CRC | DDR4 2400MHz PC4-19200 ECC RDIMM 2Rx8 Server Memory
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8GB RAM Replacement for Samsung M393A1G43DB1-CRC, M393A1G43EB1-CRC | DDR4 2400MHz PC4-19200 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772478671
  •  
  • $49.59 
  • Free Shipping

Choosing the right server memory can boost the performance and reliability of your data center by checking for data errors and reducing electrical loads. There are different types of server RAM to prevent crashes, correct inaccuracies in your data or allow for faster operation.

ECC Memory Uses Algorithms to Constantly Check Data for Errors

ECC server memory can prevent system failure and data corruption, which is particularly important in data centers and business environments, such as healthcare and finance. ECC memory adds a ""parity bit"" to each binary code to detect errors. When writing data, this type of system-specific memory creates and stores an ECC code. When it reads data, ECC memory creates a new ECC code and compares it to the one it had previously stored. If there are errors, the memory decrypts the corrupted data and corrects it immediately. ECC computer memory uses algorithms to continually check for single-bit errors as the server processes data. This type of server memory can be slower than others, but it reduces system crashes. It also tends to be more expensive. The other components of the server, such as the processor and motherboard, must support ECC memory.

Registered Memory Puts Less Strain on CPU Memory Controller

There are two types of ECC server memory: unbuffered and registered. When using unbuffered memory, the CPU communicates directly with the data banks for faster performance. Registered memory has registers on each memory bank module. The CPU needs to communicate with the registers first, then the registers communicate with the DRAM. This process means that every instruction from the server requires at least one extra CPU cycle, resulting in slower performance. However, registered server memory puts less strain on the CPU's memory controller, and increases reliability, a useful choice in data centers and business settings. Registered memory works with the DDR, DDR2 and DDR3 modules of many server models. 

Load-reduced Dual Inline Memory Modules Reduce Electrical Loading on the Memory Bus

A load-reduced dual inline memory module (LRDIMM) is a type of server memory that reduces electrical loading on the memory bus. LRDIMMs have a memory buffer chip for each module that goes into the parallel memory bus. This way, they do not connect directly to the bus like other types of memory. When a server only has LRDIMMs as dynamic RAM, the memory controllers shift from parallel to serial mode, so the memory buffer handles all the read and write operations. Thanks to the reduced electrical load, LRDIMMs typically work faster than registered memory. 

Dynamic RAM Is Common as Main Memory

When considering desktop memory, there are two types of server RAM: static and dynamic. Static RAM (SRAM) has a more complex construction, with latches and transistors. Each block of memory requires six transistors. SRAM consumes less power than dynamic RAM (DRAM) and it is faster, but it is only available in smaller storage sizes. Since SRAM has a short access time, it is most common as cache memory. DRAM has a larger access time, so it is more common as the main memory. It is generally more expensive than SRAM. These factors also apply to laptop memory.

Bestselling Server Memory Reviews:

Matthew D.
7/29/2023 12:51:29 PM
Works with Ryzen Pro 4350G and Asrock B550 Mini-ITX

“ Highly recommended if you are building a home server on a Ryzen platform and need ECC ram that is compatible. ”

NEMIX RAM 32GB (2X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM KIT
Thomas
6/14/2022 1:17:58 PM
Works great in a consumer build

“ An advantage of this server memory is it works out of the box with the BIOS with no overclock profile required and runs at 1.2V. ”

Micron DDR4-3200 32GB/4Gx72 ECC CL22 Server Memory