WD Black SN770​

SSD REPAIR > WD Black SN770​
WD Black SN770 | SSD.repair

WD Black SN770

Professional repair and data recovery services for Western Digital’s value-oriented PCIe 4.0 gaming SSD. Specialized support for this DRAM-less NVMe powerhouse.

Available Capacities
  • 250GB
  • 500GB
  • 1TB
  • 2TB

Performance Specifications

  • Sequential Read: Up to 5,150 MB/s
  • Sequential Write: Up to 4,900 MB/s
  • Random Read (QD32): Up to 740K IOPS
  • Random Write (QD32): Up to 800K IOPS

Key Features

  • DRAM-less Architecture
  • HMB (Host Memory Buffer)
  • Game Mode
  • Microsoft DirectStorage Ready
  • NCache™ 4.0 Technology
  • Low Power Consumption

Technical Features

  • PCIe Gen4 x4 interface
  • WD proprietary controller
  • BiCS5 TLC NAND
  • NVMe 1.4 protocol
  • Advanced wear leveling
  • SMART monitoring
  • Thermal throttling

Technical Details

Form Factor

M.2 2280

Interface

PCIe 4.0 x4

Architecture

DRAM-less with HMB

NAND Type

112-layer BiCS5 TLC

Expert Review

The WD_BLACK SN770 represents an excellent balance of performance and value, utilizing a DRAM-less design with HMB technology. Its unique architecture requires specialized diagnostic approaches and understanding of HMB dynamics.

Important Notice: The DRAM-less architecture with HMB requires specific testing procedures and recovery methods. Professional expertise is essential for safe repairs and data recovery.

Common Issues We Address

  • HMB Complications: Host memory buffer allocation issues
  • Performance Consistency: Speed variations under load
  • Game Mode: Gaming optimization failures
  • PCIe Gen4 Stability: Link training problems
  • Thermal Management: Throttling under sustained loads
  • Power State Transitions: Sleep/wake reliability
  • Firmware Updates: Update failures and recovery

Our Professional Solutions

  • Advanced Diagnostics:
    • HMB functionality testing
    • PCIe 4.0 signal analysis
    • Thermal profile assessment
    • Power efficiency verification
  • Performance Recovery:
    • HMB optimization
    • Game Mode calibration
    • Write cache tuning
  • Thermal Solutions:
    • Thermal throttling analysis
    • Cooling optimization
    • System airflow consultation
  • Data Recovery Services:
    • DRAM-less specific recovery
    • Firmware-level extraction
    • Game save recovery
  • System Integration:
    • HMB configuration
    • DirectStorage setup
    • Power state optimization