Intel Pentium Pro Ceramic CPU – High-Yield Gold Recovery Processor – Vintage Ceramic PGA Scrap (150MHz, 166MHz, 200MHz)
Buy Intel Pentium Pro Ceramic CPU scrap – the highest gold-yielding vintage processor for precious metal recovery. Gold-plated lid, dense gold pins, and gold bonding wires. Ideal for e-waste refiners. Available in 150MHz, 166MHz, 200MHz. Bulk quantities. Warning: Contains gold – not functional. Contact us for bulk orders. Delivery by air, land & sea worldwide. Standard & express shipment available.
The Intel Pentium Pro Ceramic CPU is widely regarded as the holy grail of gold recovery from electronic scrap. Introduced in 1995 as Intel’s high-end server and workstation processor, the Pentium Pro was manufactured in a large, heavy ceramic package that contains more gold than virtually any other CPU. For e-waste recyclers and precious metal refiners, the Pentium Pro represents the ultimate feedstock.
Unlike later plastic CPUs, the Pentium Pro features:
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A large, thick gold-plated lid (heat spreader) – visible gold on top
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Dense gold-plated pins (387 pins on Socket 8 package)
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Gold bonding wires inside connecting the die to the package
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Thick-film gold traces on the ceramic substrate
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Often includes a gold-plated copper heat sink underneath the lid
Additionally, many Pentium Pro CPUs contain a separate L2 cache die (up to 1MB or 2MB) which also has gold bonding wires, increasing the total gold yield.
Typical gold yield: 1.5 – 3.0 grams of gold per kilogram of Pentium Pro CPUs. This is significantly higher than standard Pentium I (0.8–1.5 g/kg) and much higher than modern CPUs.
📋 Key Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Intel Corporation |
| Family | Pentium Pro (P6 microarchitecture) |
| Package Type | Ceramic Pin Grid Array (PGA) – Socket 8 |
| Pin Count | 387 pins (gold-plated) |
| Clock Speeds | 150 MHz, 166 MHz, 200 MHz (also engineering samples) |
| L2 Cache | 256KB, 512KB, 1MB – some rare 2MB versions |
| Die Size | 307 mm² (original 0.35µm) |
| Lid Material | Gold-plated copper (thick, heavy) |
| Pin Material | Gold-plated Kovar |
| Substrate | Ceramic with thick-film gold traces |
| Markings | Intel Pentium Pro logo, speed, S-spec (e.g., SL25S, SL24A, SL22K) |
🥇 Gold-Bearing Components (Detailed)
| Component | Gold Thickness / Content | Recovery Difficulty | Notes |
|---|---|---|---|
| Gold lid (heat spreader) | 10–30 micro-inches gold over copper | Easy (mechanical removal) | The lid is large and heavy – excellent gold yield |
| Gold pins (387) | High-density gold plating | Moderate (depopulation) | Pins are thick and densely packed |
| Gold bonding wires (CPU die) | Very high purity gold | Requires chemical refining | The CPU die inside has multiple gold wires |
| Gold bonding wires (L2 cache dies) | Additional gold | Requires chemical refining | Cache dies add 20–40% more gold |
| Thick-film gold traces | Gold-ceramic hybrid | Requires crushing + leaching | Significant gold on substrate surface |
| Gold-plated heat sink (internal) | Gold over copper | Easy (under lid) | Some models include this |
📊 Gold Yield Comparison – Pentium Pro vs Other CPUs
| CPU Type | Typical Gold per kg | Relative Value | Scarcity |
|---|---|---|---|
| Intel Pentium Pro | 1.5 – 3.0 g | Highest | Moderate (increasingly rare) |
| Intel Pentium I (Ceramic) | 0.8 – 1.5 g | High | Common |
| Intel 486 Ceramic | 0.7 – 1.3 g | High | Common |
| AMD K5/K6 Ceramic | 0.5 – 1.0 g | Moderate | Uncommon |
| Cyrix Ceramic | 0.4 – 0.9 g | Moderate | Uncommon |
| Plastic CPUs (modern) | 0.1 – 0.3 g | Low | Very Common |
📦 Available Packaging Options
| Packaging | Net Weight | Approx. Quantity | Best For |
|---|---|---|---|
| Sample pack | 500g – 1kg | 15–30 CPUs | Testing, assay, small-scale refining |
| Small lot | 2kg – 5kg | 60–150 CPUs | Hobbyist refiners, mid-size operations |
| Wholesale carton | 10kg | 300–350 CPUs | Professional e-waste recyclers |
| Bulk box | 25kg | 750–900 CPUs | Large refiners, smelters |
| Pallet | 200kg – 500kg | 6,000–15,000 CPUs | Industrial scale, container orders |
Note: Quantity per kg varies depending on lid type and any attached heat sinks. Approx. 30–35 Pentium Pro CPUs per kg.
🔧 Processing Tips for Maximum Gold Recovery
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Lid removal – Heat the CPU on a hot plate or with a heat gun (250‑300°C). The gold lid will separate from the ceramic as the adhesive softens. Collect all lids separately – they can be stripped directly.
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Pin depopulation – Use a decapsulation tool, hot plate method, or chemical stripping (nitric acid – professionals only). The dense 387 pins yield significant gold.
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Cache die extraction – Under the main lid, you may find 1 or 2 additional cache dies (black squares). These contain gold bonding wires. Remove and process with the main die.
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Ceramic body processing – Crush the ceramic substrate (ball mill or mortar) then leach with aqua regia or cyanide. The thick-film gold traces dissolve readily.
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Assay recommendation – For large lots, send a representative sample (e.g., 10 CPUs) to a certified laboratory for fire assay to determine exact gold content.
⚠️ Safety Warning: Gold recovery uses strong acids and toxic chemicals. Professional equipment (fume hood, PPE, neutralization system) is required. Do not attempt without proper training and permits.
🌟 Why Pentium Pro is the King of Gold Recovery
| Reason | Detail |
|---|---|
| Highest gold concentration | 1.5–3.0 g per kg – unmatched by any other common CPU |
| Large, heavy gold lid | Thick gold plating over copper – easy to strip |
| Dense pin array | 387 gold-plated pins per CPU – excellent pin stripping yield |
| Multiple gold-bonded dies | CPU die + 1 or 2 cache dies = more gold wires |
| Gold ceramic traces | Thick-film gold on substrate adds extra value |
| Increasing scarcity | No longer produced – prices for scrap are rising |
📝 Quality & Condition
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Sold as untested, non-functional scrap – no guarantee of electrical operation
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Pins may be bent, oxidized, or slightly missing – still valuable for gold recovery
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Gold lid may have scratches or minor dents – gold content remains fully recoverable
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Ceramic body may have minor chips or cracks – does not affect gold recovery
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Some CPUs may have original thermal paste, adhesive, or remnants of heat sinks – included in weight
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Cache dies are intact unless noted
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No plastic CPUs, no damaged beyond recovery
🚚 Bulk & Wholesale
We supply Intel Pentium Pro ceramic CPUs in bulk to e-waste recyclers, precious metal refiners, and scrap traders. Available in:
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10kg – 25kg boxes
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200kg – 500kg pallets
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Full 20ft / 40ft containers (mixed with other high-grade ceramic CPUs)
Contact us for current pricing based on spot gold market and quantity.
for more inquiries or to place an order (samples, small lots, bulk boxes, or pallets), please contact us. We deliver by air, land, and sea — internationally. Standard and express shipment options available.
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