Memory Slots: Voltage Range 1.2V to 1.8V

Component Specifications

Definition

Memory slots, also known as DIMM (Dual In-line Memory Module) or SO-DIMM (Small Outline DIMM) slots, are standardized electrical interfaces on computer motherboards that accommodate RAM modules. These slots provide the physical and electrical connection between the motherboard's memory controller and the RAM, enabling data transfer, power delivery, and communication protocols. They are engineered with precise pin configurations, locking mechanisms, and alignment keys to ensure proper installation and prevent damage. Memory slots support various RAM technologies including DDR, DDR2, DDR3, DDR4, and DDR5, with each generation having specific slot designs and compatibility requirements.

Working Principle

Memory slots operate by providing a physical interface where RAM modules are inserted to establish electrical connections between the motherboard's memory controller and the memory chips. When a RAM module is properly seated, the slot's contacts align with the module's pins, creating pathways for data signals, address lines, control signals, and power. The memory controller manages data flow through these connections, enabling read/write operations, refresh cycles, and error correction. Slot designs include notches and locking tabs that ensure correct orientation and secure installation, while the electrical interface follows standardized protocols for timing, voltage, and signaling.

Materials

Memory slots are typically constructed from high-temperature resistant plastics (such as LCP or PBT) for the housing, with gold-plated copper alloy contacts for optimal conductivity and corrosion resistance. The PCB interface uses FR-4 glass epoxy substrate with copper traces. Locking mechanisms may incorporate stainless steel or reinforced plastic components.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pin Count	168, 184, 240, 260, 288 pins
ECC Support	Yes/No depending on design
Form Factor	DIMM, SO-DIMM, Micro-DIMM
Voltage Range	1.2V to 1.8V
Channel Support	Single, Dual, Quad Channel
Data Transfer Rate	Up to 6400 MT/s
Supported Standards	DDR, DDR2, DDR3, DDR4, DDR5

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

JEDEC JESD79, ISO/IEC 14776, DIN 41612

Parent Products

This component is used in the following industrial products

Motherboards

The main printed circuit board (PCB) in a computer that connects and allows communication between all hardware components.

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Motherboard/Backplane

A printed circuit board that serves as the main structural and electrical backbone in network infrastructure equipment, providing connectivity between various electronic components and expansion cards.

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Engineering Analysis

Risks & Mitigation

Physical damage from improper installation
Electrostatic discharge during handling
Incompatible RAM module insertion causing slot damage
Bent or broken pins in the slot connector
Overheating due to poor ventilation around memory area

FMEA Triads

Trigger: Excessive force during RAM installation
Failure: Bent or broken slot pins, cracked slot housing
Mitigation: Implement proper installation training, use alignment guides, design slots with reinforced housing

Trigger: Dust accumulation in slot contacts
Failure: Poor electrical connection, memory errors, system instability
Mitigation: Regular maintenance cleaning, use of slot covers when empty, controlled environment operation

Trigger: Thermal stress from adjacent components
Failure: Slot material degradation, contact oxidation, intermittent connections
Mitigation: Adequate thermal management, heat-resistant materials, proper component spacing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Pin alignment tolerance ±0.15mm, insertion force 30-60N, withdrawal force 10-30N

Test Method

JEDEC standard compliance testing, insertion/withdrawal cycle testing (minimum 50 cycles), electrical continuity testing, thermal cycling testing (-40°C to 85°C)

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Memory Slots

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

JASIC Technology Co., Ltd.

Shenzhen, Guangdong, CN

Founded 2005

Also makes: Laser Welding Machine, Air Compressor, Remote Control and 5 more

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “100 job memory slots”
View source page ↗ jasictech.com · checked 2026-08-26

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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PCB Substrate

PCB substrate is the foundational insulating layer that provides mechanical support and electrical connectivity for electronic components in high-speed memory modules.

Edge Connector

Edge connector is a printed circuit board (PCB) connector that mates with the edge of another PCB, commonly used in high-speed memory modules for reliable electrical connections.

Frequently Asked Questions

What is the difference between DIMM and SO-DIMM memory slots?

DIMM (Dual In-line Memory Module) slots are standard-sized connectors used in desktop computers and servers, typically measuring 133.35mm in length. SO-DIMM (Small Outline DIMM) slots are compact versions measuring 67.6mm, designed for laptops, small form factor PCs, and embedded systems. Both serve the same function but differ in physical dimensions and pin configurations.

Can DDR4 RAM be installed in a DDR3 memory slot?

No, DDR4 RAM modules are physically and electrically incompatible with DDR3 slots. DDR4 modules have 288 pins with a different notch position compared to DDR3's 240 pins. Attempting to force installation can damage both the RAM module and the motherboard slot.

How do memory slots support dual-channel configuration?

Dual-channel memory requires installing identical RAM modules in specific slot pairs (usually color-coded on motherboards). The memory controller accesses both modules simultaneously, doubling the theoretical memory bandwidth compared to single-channel operation. Proper slot population according to motherboard documentation is essential for optimal performance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Memory Slots