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Electronic Scrap
Class 1-C Modern Motherboards
Grade: VariousHigh Tier
Post-2000 colored motherboards (Pentium 4+), lower gold content
Market Price EstimateUpdated Daily
$1,850/ MT
+95 (5.4%)vs yesterday
Verified specifications & market data
Chemical Composition
Elemental breakdown by percentage weight.
Standard composition limits
Values represent maximum allowed percentage unless otherwise noted.
Physical Properties
Material form, density, and contamination specifications.
Post-2000 consumer computer motherboards; end-of-life modern computing equipment; low precious metal content (0.005-0.05g gold; 20-80g copper); RoHS-compliant (lead-free solder, halogen-free flame retardants); ubiquitous e-waste stream; highest supplier count commodity; volume-driven bulk commodity; minimal precious metal recovery per unit; environmental/hazmat straightforward (RoHS compliant; no legacy hazmat)
Acceptable Inclusions
- Gold plating 0.005-0.05g (modern specification)
- Copper 20-80g (base metal; valuable)
- Lead-free solder 5-30g (modern standard; SAC305 safe)
- Nickel <3g (plating component; acceptable)
- Silver <3g (trace; minimal)
- Epoxy-fiberglass substrate (inert)
- Halogen-free flame retardant (modern standard; safe)
- Minor dust/thermal compound residue (typical consumer use)
Prohibited Materials
- Gold <0.005g per board (below modern specification; base waste)
- Pre-2000 leaded solder (not modern; RoHS violation)
- Batteries attached (active hazmat)
- Mercury components (RoHS violation; modern non-compliant)
- Unknown composition (RoHS status uncertain)
Quality Assurance
Testing protocols, sampling methods, and acceptance criteria.
Sampling Protocol
frequencyRandom sampling; RoHS compliance spot-check; minimal hazmat verification; straightforward assessment
maximumQuantity2000+ boards per shipment
minimumQuantity50-300 boards or 10-50 kg
percentage3-8% of lot
Acceptance Limits
all Criteria Must PassMaterial must be post-2000 RoHS-compliant; modern specification met; environmental/hazmat straightforward
board IntegrityBoard structurally sound; components intact; processing straightforward
copper PresentModerate copper confirmed; 20-80g expected; bulk commodity value established
modern Board StatusConfirmed as post-2000 modern RoHS-compliant motherboard; contemporary e-waste standard
rohs ComplianceRoHS compliant verified; lead-free solder confirmed; hazmat minimal/absent
Weight Tolerance
measurementBulk weighing acceptable; precision irrelevant; statistical standardization applied
variance±20-30% from estimated weight
Required Test Methods
Visual Modern Board Confirmation
Purpose
- Confirm post-2000 modern board (colored PCB)
- verify RoHS-compliant appearance
- assess condition
Acceptance Criteria
- Modern colored PCB characteristic
- post-2000 component styles visible
- RoHS-compliant appearance evident
Procedure
- Sample visual inspection
- identify colored substrate (blue/green/red)
- verify modern component styles
- RoHS compliance indicators
RoHS Solder Verification
Purpose
- Verify lead-free solder (bright shiny appearance vs. dull leaded)
- confirm RoHS compliance
Acceptance Criteria
- Lead-free solder confirmed (modern bright appearance)
- halogen-free material confirmed
Procedure
- Visual solder assessment
- bright/shiny characteristic
- component inspection
- material standard verification
Hazmat Screening
Purpose
- Confirm RoHS compliance
- verify no mercury, cadmium, lead present
Acceptance Criteria
- RoHS compliance confirmed
- hazmat minimal
- no legacy hazmat detected
Procedure
- Visual inspection
- RoHS material compliance assessment
- straightforward verification (minimal testing)