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Green 240-pin DDR3 memory module with black chips, no heat spreader

SAMSUNG

SAMSUNG M393B1G73DB0-YK0 8GB DDR3 1600 ECC Registered server RAM

SKU CH-PH30-N4X6G MPN M393B1G73DB0-YK0

8GB DDR3 1600 ECC registered server memory model M393B1G73DB0-YK0 with CL11 latency and 1.35V operation

  • Total capacity8 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Product type240-Pin DDR3 SDRAM
  • ECC protection prevents data corruption in critical workloads
  • Registered design reduces electrical load for stable multi-module servers
  • DDR3 1600 speed delivers 12800 MB/s bandwidth for responsive performance
  • Low 1.35V operation cuts power draw and heat in dense racks
  • CL11 latency keeps access times tight for consistent throughput

8GB DDR3 1600 ECC Registered module

This 8 GB DDR3 1600 module is built for servers and workstations that require error-correcting registered memory. It operates at 1.35 V with a CAS latency of CL11 and uses the standard 240-pin form factor. The stick has no heat spreader, keeping the profile low for dense configurations.

Upgrade from non-ECC or slower DDR3

Replaces unbuffered or lower-speed DDR3 DIMMs when data integrity and signal stability are required. The registered buffer reduces electrical load on the memory controller, making the jump worthwhile for multi-DIMM channels or mission-critical workloads. Systems limited to 1.5 V DDR3 will not support the 1.35 V operating voltage.

Simple 240-pin installation.

Installation follows the usual 240-pin DDR3 slot alignment; press evenly until the latches click. The most common issue is mixing registered and unbuffered modules, which prevents boot. Verify the platform supports 1.35 V DDR3 1600 and registered ECC before seating the DIMM.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $57.99
Cheaper than about 82% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $7.25 per GB
Typical for this category: the median of 6,064 items is $7.25 per GB.

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Specifications

Product
Brand nameSAMSUNG
Model nameM393B1G73DB0-YK0
Total capacity8 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage1.35 V
Size & build
Shipping weight0.09 kg
Package size140 × 51 × 13 mm

Questions about this item

Will this 240-pin DDR3 module fit my server DIMM slots?

The module uses the standard 240-pin DDR3 form factor and 1.35 V operation, matching server slots wired for PC3-12800 memory.

What is the correct way to seat this registered ECC stick, and what step is often missed?

Align the key notch, press firmly until both side clips click, then verify the system recognises the registered buffer and ECC at 1600 MT/s.

When should I expect to replace this 8 GB DDR3 module in a 24/7 server?

DDR3 DRAM has no moving parts; plan replacement only if ECC logs show rising correctable errors or a DIMM fails POST.

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