256Kx36 & 512Kx18-Bit Synchronous Pipelined Burst SRAM # Technical Documentation: K7A803600BQC14 Memory Module
Manufacturer : SAMSUNG
Component Type : DDR4 SDRAM Module
Part Number : K7A803600BQC14
Classification : 8GB DDR4-2666 (PC4-21300) Unbuffered DIMM
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## 1. Application Scenarios
### Typical Use Cases
The K7A803600BQC14 is a mainstream DDR4 memory module designed for general-purpose computing applications requiring reliable performance with moderate bandwidth demands. Typical deployment scenarios include:
- Desktop Workstations : Ideal for office productivity systems, educational computers, and home entertainment setups where 8GB provides sufficient headroom for multitasking with standard applications
- Entry-Level Servers : Suitable for small business servers handling file sharing, print services, or lightweight database applications
- Embedded Systems : Deployed in kiosks, digital signage, and industrial PCs where consistent performance under continuous operation is required
- Gaming Systems : Functions as baseline memory for entry-level gaming PCs, often deployed in dual-channel configurations (2×8GB) for improved bandwidth
### Industry Applications
- Enterprise IT Infrastructure : Deployed in bulk for corporate desktop refresh cycles due to its balance of performance and cost-effectiveness
- Education Sector : Widely used in computer labs and administrative systems across schools and universities
- Healthcare Informatics : Suitable for medical record systems and diagnostic workstations where data integrity is prioritized over extreme performance
- Retail Point-of-Sale : Implemented in cash register systems and inventory management terminals requiring stable, long-term operation
### Practical Advantages
- Power Efficiency : Operates at 1.2V (compared to DDR3's 1.5V), reducing system power consumption by approximately 20%
- Error Correction : Supports on-die ECC for improved data reliability in non-critical applications
- Thermal Management : Includes temperature sensors for thermal monitoring without requiring additional hardware
- Scalability : Compatible with motherboards supporting up to 128GB total system memory across multiple DIMM slots
### Limitations
- Bandwidth Constraints : 2666 MT/s transfer rate may bottleneck performance in memory-intensive applications like video editing or scientific computing
- Capacity Limitations : 8GB per module may require multiple DIMMs for modern applications, consuming additional motherboard slots
- Latency Profile : CAS latency of 19 cycles at 2666 MHz is moderate but not optimal for latency-sensitive applications
- Unbuffered Design : Not suitable for servers requiring registered/buffered DIMMs for signal integrity with high module counts
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## 2. Design Considerations
### Common Design Pitfalls and Solutions
| Pitfall | Solution |
|---------|----------|
| Incompatible Voltage Settings | Ensure BIOS/UEFI is configured for DDR4 standard 1.2V operation, not auto-detected as DDR3 |
| Improper Timing Configuration | Manually set CAS-RCD-RP-RAS timings to 19-19-19-43 if automatic detection fails |
| Insufficient Cooling | Maintain at least 1" clearance above module and ensure case airflow across DIMM slots |
| Mixed Module Operation | Avoid mixing with different speed or timing modules; if necessary, clock all modules to slowest common denominator |
### Compatibility Issues
- Platform Restrictions : Compatible only with Intel 100-series chipsets and newer, or AMD AM4 platforms and newer
- Processor Limitations : Some entry-level processors may limit maximum supported speed to 2400 MT/s regardless of module capability
- Mixed Manufacturer Issues : When combining with other brands, potential timing conflicts may require manual configuration
- Firmware Dependencies : Requires UEFI/BIOS revision supporting DDR4-2666 JEDEC standard timings
### PCB
