Introduction, Construction, Components, and Recycling Value
Introduction
Start with the silkscreen near the memory slots: “IPISB-VR Rev. 1.01” identifies this Pegatron-built Acer/Gateway desktop board. A metal LGA1155 socket, four full-size DDR3 slots, one PCIe x16 slot and six SATA connectors provide the quickest visual confirmation before recycling classification.
This board is identified by its Acer Inc. silkscreen, IPISB-VR Rev. 1.01 marking, Intel LGA1155 metal CPU socket, four DDR3 DIMM slots, one full-length PCI Express x16 slot, three PCI Express x1-style expansion slots, six SATA connectors, rear VGA and HDMI-class display outputs, rear USB/LAN/audio ports, ATX power connector, CPU power connector, and Acer/Gateway OEM layout. Schematic references identify the same Pegatron IPISB-VR project as a board used in Acer Aspire M1939, Acer Aspire M3970, and Gateway DX4860 desktop PCs.
This is a desktop motherboard, not a laptop motherboard. The distinction is important for recycling because laptop boards generally have denser construction, SO-DIMM memory sockets, battery and display-cable connectors, and proprietary notebook shapes. The IPISB-VR instead has full-size desktop DIMM slots, desktop PCI Express expansion, ATX-style power input, rear I/O shield geometry, and a rectangular desktop PCB. It should be sorted with desktop motherboards, not with laptop motherboard scrap.
The board was normally installed in branded Acer Aspire and Gateway desktop systems, but it can also be used by computer hobbyists in personal repair or custom assembly projects. Because it is an OEM motherboard, hobbyist use requires more care than a retail ASUS, MSI, or Gigabyte board. Front-panel pinout, BIOS CPU support, case fit, cooling clearance, power-supply connectors, and graphics-card compatibility must be checked. Acer community examples show IPISB-VR Rev. 1.01 used with Intel Core i3-2120 and Core i5-2400 CPUs, while later CPU upgrades may depend on BIOS support.
From a recycling viewpoint, the board has meaningful material value through its assumed installed CPU, LGA1155 socket contacts, DDR3 DIMM contacts, PCI Express slot contacts, Intel chipset package, LAN/audio controller sections, BIOS flash, copper-bearing PCB layers, voltage-regulation components, SATA connectors, USB/LAN/audio/display ports, solder, nickel-plated metal, multilayer ceramic capacitors, and limited gold-bearing contact surfaces. However, it is still a modern integrated consumer desktop motherboard, not a server motherboard, laptop motherboard, Apple logic board, telecom board, industrial controller, or military/aerospace board. Under Ohata’s internal value-sorting method, the correct category is D Grade Board Scrap when complete and CPU-installed.
Board Identity and Physical Layout
The correct product identity is:
Acer IPISB-VR Rev. 1.01 / Pegatron IPISB-VR Intel H67 LGA1155 DDR3 Micro-ATX Desktop Motherboard
The board has Acer branding but was produced as an OEM platform project. Schematic references identify Pegatron “IPISB-VR” as the project name and list Acer Aspire M1939, Acer Aspire M3970, and Gateway DX4860 as associated systems. This gives the board two practical identities: an Acer/Gateway desktop motherboard from a user-facing system perspective, and a Pegatron IPISB-VR board from a manufacturing/project-code perspective.
The visual layout is consistent with a compact desktop motherboard for office and consumer tower systems. The CPU socket sits near the center, the four DDR3 DIMM slots are placed to the right, the expansion area is in the lower-left section, and the SATA connectors are grouped in the lower-right area. The rear I/O row includes VGA, HDMI-class video output, USB, Ethernet, and audio connectors. The 24-pin ATX power connector is positioned along the right side, and the 4-pin CPU power connector is near the CPU voltage-regulation area.
The board should not be confused with other Pegatron IPISB boards, such as IPISB-CH, IPISB-CH2, IPISB-CU, or HP-branded variants. Those boards may share Intel 6-series chipsets and LGA1155 sockets, but they belong to different OEM designs, different BIOS families, and different connector layouts. The key sorting mark for this board is IPISB-VR Rev. 1.01.
CPU Socket and CPU Package Size
The CPU interface is Intel LGA1155, also known as Socket H2. LGA means land-grid array: the socket contains the spring contacts, and the CPU has flat metal lands on the underside. The socket uses a metal load plate and lever to apply pressure between the CPU package and the socket contact field.
For this board, the required CPU package size is 37.5 mm × 37.5 mm. Intel lists LGA1155 support and a 37.5 mm × 37.5 mm package size for LGA1155 processors such as Core i5-2500 and Core i5-3470. This dimension is important for scrap identification because it confirms that the board belongs to the Intel LGA1155 desktop package class rather than AMD AM-series PGA, Intel LGA775, Intel LGA1156, Intel LGA1366, or mobile notebook CPU platforms.
A compatible installed CPU is assumed for this recycling guide. In an Acer/Gateway desktop, typical processors are 2nd-generation Intel Core i3, Core i5, and Core i7 Sandy Bridge CPUs, although exact compatibility depends on the OEM BIOS. Acer community examples identify IPISB-VR Rev. 1.01 systems with Core i3-2120 and Core i5-2400 processors, and other upgrade discussions show that BIOS support can be restrictive for some later CPUs.
For recycling, the CPU is one of the most important value-bearing components. A CPU-installed IPISB-VR board is worth more than the same board without the CPU because the CPU contributes semiconductor material, package substrate, contact lands, heat-spreader metal, internal conductive structures, and precious-metal-bearing internal features. If the CPU is missing, the motherboard remains recyclable, but buying value should be reduced. If the LGA1155 socket is bent, burned, cracked, corroded, or removed, the value loss is more severe because both CPU value and socket-contact value are affected.
Intel H67 Platform and Integrated Graphics Function
The IPISB-VR is widely sold and referenced as an Acer/Gateway H67 LGA1155 DDR3 motherboard. The Intel H67 Express chipset was designed for 2nd-generation Intel Core processor platforms and provides mainstream desktop I/O such as SATA, USB, PCI Express I/O lanes, and support for processor graphics display routing. Intel’s H67 product brief lists up to two SATA 6 Gb/s ports and up to four SATA 3 Gb/s ports as H67 storage capabilities.
The board has rear VGA and HDMI-class display outputs. These ports do not mean that the motherboard contains a separate removable graphics card. On this platform, display output is tied to the installed Intel LGA1155 processor’s integrated graphics capability and chipset display routing. A discrete graphics card, if present in the PCI Express x16 slot, should be removed and sorted as graphics-card scrap separately.
For grading, the integrated graphics function is not a separate premium GPU card and does not move the board into a higher category. It is part of a modern cost-efficient desktop platform, which is one of the reasons the board remains D Grade under the Ohata method.
Memory Subsystem
The board has four full-size DDR3 DIMM slots. IPISB-VR memory references identify the board as using DDR3 PC3-10600 1333 MHz Non-ECC DIMM memory and list a maximum memory capacity of 16 GB. These are desktop DIMM sockets, not laptop SO-DIMM sockets.
The memory slots are important for both identification and recycling value. Each DDR3 socket contains numerous plated contacts, solder joints, and copper alloy structures. In normal scrap handling, loose RAM modules are sorted separately as memory scrap, but the motherboard should retain the DIMM sockets. Removed, cracked, burned, corroded, or harvested DIMM slots reduce connector completeness and can lower the buying value.
Expansion Slots and Add-In Card Support
The board has one long PCI Express x16 slot for a graphics card or other full-length PCIe device and three shorter PCI Express x1-style slots for smaller add-in cards. Parts-market references for IPISB-VR Rev. 1.01 also describe it with 3 × PCI Express x1 slots.
These expansion connectors provide recoverable contact material. They contain plated contacts, copper alloy springs, soldered legs, plastic housings, and PCB routing. However, the motherboard itself does not have a long external gold-finger edge connector like a removable expansion card. Therefore, the board remains motherboard scrap rather than expansion-card scrap.
The PCI Express x16 slot can hold a discrete graphics card for gaming, video output, or display upgrades. Any installed graphics card should be removed and graded separately because a graphics card has its own PCB, GPU, memory chips, cooler, and PCIe gold fingers.
Storage, Rear I/O, and Internal Headers
The board has six SATA connectors in the lower-right storage area. Intel’s H67 platform provides up to two SATA 6 Gb/s ports and up to four SATA 3 Gb/s ports, which aligns with the visible six-port arrangement. The SATA connectors contribute recoverable material through copper contacts, solder joints, and plastic connector bodies.
The rear I/O section includes display output, USB, Ethernet, and audio connections. The board also includes internal USB headers, front-panel connections, fan headers, power connectors, and other OEM service headers. These features confirm that it is a desktop motherboard intended for a complete Acer/Gateway desktop chassis.
The 24-pin ATX main power connector and 4-pin CPU power connector are important for both identification and scrap value. They contain metal contact sleeves, solder joints, and copper routing connected to the voltage-regulation circuit. The CPU voltage-regulation area around the socket includes MOSFETs, chokes, capacitors, and controller components that contribute copper and recyclable electronic material.
Recycling Value Summary
The Acer IPISB-VR Rev. 1.01 has practical scrap value, especially when the CPU is present. Its value is not based on whether it still boots, but on the recoverable metals and electronic components attached to the board.
Major value points include:
LGA1155 CPU installed by assumption.
LGA1155 socket contacts.
Four DDR3 DIMM sockets.
PCI Express x16 and PCI Express x1 contacts.
Intel H67-class platform chipset package.
BIOS flash.
LAN/audio support ICs.
SATA connector group.
Rear USB, LAN, audio, VGA, and HDMI-class ports.
ATX power connectors.
CPU voltage-regulation components.
Copper in internal PCB layers.
MLCCs, solder, nickel-plated surfaces, tin, copper, and limited gold-bearing materials.
Despite these value points, the board is still a later-generation Intel i-series desktop motherboard with a metal socket cover/lever design and moderate component density. Ohata’s Board Grade Class specifically places i-series metal-socket desktop motherboards and lower-value modern computer boards in D Grade.
Ohata D Grade Classification, Identification Guide, and Apple Logic Board Types
Official Ohata Grade for Acer IPISB-VR
The official Ohata classification for this board is:
Ohata D Grade Board Scrap
This classification assumes:
A compatible LGA1155 CPU is installed.
The motherboard is complete.
The LGA1155 socket is intact.
The chipset package is present.
Memory slots and PCIe slots remain attached.
SATA connectors, rear I/O, and power connectors are present.
The PCB is not cut, burned, corroded, or heavily contaminated.
The general Board Grade Class places i-series motherboards with metal CPU socket cover and lever designs and desktop motherboards with metal sockets in D Grade. The detailed D Grade standard further explains that D Grade includes later-generation Intel desktop motherboards and integrated desktop boards with cost-efficient construction, lower integrated circuit density, lighter gold plating, and lower recoverable precious-metal content than higher grades.
Why the Board Is D Grade Instead of C Grade
C Grade includes standard desktop motherboards, trimmed expansion cards, interface cards, graphics cards, and computer boards with moderate recoverable value. The IPISB-VR has some C Grade-like characteristics because it is a full desktop motherboard with a CPU socket, DDR3 slots, PCI Express expansion, SATA storage, LAN, audio, and rear I/O. However, the more specific D Grade guidance applies because it is a later Intel i-series desktop board with a metal LGA socket and cost-optimized OEM construction.
The board also has relatively limited support-chip density compared with higher-value desktop boards. Many functions are integrated into the CPU and chipset. The PCB has large functional areas but does not contain the dense semiconductor coverage of laptop motherboards, industrial controllers, telecom boards, or server boards. Therefore, D Grade is the correct internal Ohata value category.
Why the Board Is Not B Grade
B Grade is a medium-value category that includes boards such as medium-grade desktop motherboards with stronger CPU socket designs, lower-grade telecom boards, embedded controller boards, peripheral interface boards, and some entry-level server boards. The IPISB-VR is not a server board, not a telecom board, not an embedded industrial controller, and not a high-end workstation board. It is an Acer/Gateway OEM consumer desktop board with ordinary LGA1155 platform design, four DDR3 slots, one PCIe x16 slot, three PCIe x1-style slots, and standard desktop I/O.
Although the installed CPU improves value, it does not convert the motherboard into B Grade. The grade is based on the complete board architecture and the Ohata internal rule for i-series metal-socket desktop boards.
Why the Board Is Not A Grade or A+ Grade
A Grade includes non-Apple laptop motherboards, large single-socket server motherboards, clean gold-finger expansion cards, CD/DVD drive controller boards, certain earlier NEC desktop boards, and selected backplane expansion boards. The Acer IPISB-VR is not a laptop board, not a server board, not a clean gold-finger card, and not an enterprise backplane.
A+ Grade includes Apple logic boards, industrial controllers, PLC CPU modules, CNC boards, robotics boards, medical boards, and large multi-socket enterprise boards. The IPISB-VR is a consumer desktop motherboard and does not meet A+ requirements.
Why the Board Is Not S, SS, or SSS Grade
S Grade is for premium legacy computer boards, boards with three or more ceramic CPUs, older enterprise hardware, and non-SATA hard drive boards with strong legacy precious-metal content. The IPISB-VR uses a modern organic LGA1155 CPU package and has no ceramic CPU array.
SS Grade is for enterprise networking, telecom switching, fiber optic communication, server backplanes, smartphone logic boards, and cellular infrastructure. The IPISB-VR has ordinary desktop LAN, not carrier-grade communication hardware.
SSS Grade is for military, aerospace, satellite, radar, defense, scientific, and mission-critical electronics with the highest precious-metal concentrations. The IPISB-VR is a mass-produced consumer/OEM desktop board and does not match SSS construction.
Identification Guide
Step 1 – Confirm Desktop Architecture
Inspect the board for full-size DDR3 DIMM slots, an Intel LGA socket, PCI Express slots, ATX power connectors, SATA connectors, rear desktop I/O, and a Micro-ATX-style rectangular outline. These features confirm it is a desktop motherboard.
Step 2 – Confirm the Model Marking
Look for Acer Inc. and IPISB-VR Rev. 1.01 on the PCB. Schematic references identify the project as Pegatron IPISB-VR and match the board to Acer Aspire M1939 / M3970 and Gateway DX4860 systems.
Step 3 – Confirm LGA1155 Socket
The CPU socket should be Intel LGA1155 with a metal load plate and lever. The correct CPU package is 37.5 mm × 37.5 mm.
Step 4 – Confirm H67-Class Platform
Parts references identify the board as an Acer/Gateway H67 / LGA1155 / DDR3 motherboard. The visible six-SATA layout also aligns with Intel H67 storage capability of up to two SATA 6 Gb/s and four SATA 3 Gb/s ports.
Step 5 – Confirm DDR3 Memory Layout
The board should have four DDR3 DIMM slots. Memory references list DDR3 PC3-10600 1333 MHz Non-ECC DIMM support and up to 16 GB maximum memory capacity.
Step 6 – Confirm Expansion and I/O
The board should have one PCI Express x16 slot, three PCI Express x1-style slots, rear display output, USB, LAN, audio, SATA storage connectors, and ATX power input. This confirms the board as a desktop computer motherboard, not an appliance board.
Apple Logic Board Types Comparison
Apple logic boards are not relevant to the IPISB-VR’s identity. Apple laptop logic boards are compact, high-density proprietary boards with BGA processors, dense power-management ICs, fine-pitch connectors, and Apple-specific layouts; Ohata generally treats Apple logic boards as A+ Grade material. The Acer IPISB-VR is a desktop Acer/Gateway motherboard with full-size DIMMs, PCI Express slots, and ATX power. It must not be mixed with Apple logic board scrap.
Recoverable Materials, Buying Standards, and Handling
Recoverable Materials
The Acer IPISB-VR Rev. 1.01 contains the typical material profile of D Grade desktop motherboard scrap. D Grade boards contain lower precious-metal concentration than higher computer, telecom, industrial, and Apple logic-board grades, but they remain recyclable because they contain copper, CPU socket contacts, memory-slot contacts, expansion-slot contacts, integrated circuits, solder, nickel-plated connectors, MLCCs, and limited gold-bearing material.
Copper is the largest recoverable metal by weight. It is present in internal PCB layers, power planes, ground planes, signal traces, CPU voltage-regulation circuits, inductors, chokes, memory routing, PCI Express routing, SATA routing, USB routing, LAN magnetics, ATX power routing, and connector pins.
Gold is present in smaller but important areas. Gold-bearing locations may include the installed CPU package, LGA1155 socket contacts, DDR3 memory-slot contacts, PCI Express contacts, USB connector contacts, LAN contacts, test pads, and gold bond wires inside integrated circuits.
Silver may be present in selected contacts, solder materials, and semiconductor structures.
Palladium may be present in multilayer ceramic capacitors distributed across the board.
Tin and nickel are found in solder alloys, component leads, connector plating, socket underplating, rear I/O shielding, and plated surfaces.
Aluminum may be recovered from heatsinks if present, but heatsinks do not define the circuit-board grade.
Buying Standards
A preferred D Grade Acer IPISB-VR Rev. 1.01 board should have:
Compatible LGA1155 CPU installed when CPU-included material is required.
LGA1155 socket intact.
Intel H67-class chipset package present.
Four DDR3 DIMM slots present.
PCI Express x16 slot present.
PCI Express x1-style slots present.
SATA connectors present.
BIOS flash present.
Audio and LAN controller sections intact.
Rear VGA, HDMI-class video, USB, LAN, and audio connectors present.
24-pin ATX and CPU power connectors present.
Front-panel and USB headers present.
PCB structurally complete.
Board dry and reasonably clean.
No heavy corrosion.
No burn damage.
No water damage.
No battery leakage.
No heavy IC harvesting.
No oil, adhesive, paint, chemical residue, or excessive thermal paste.
No mixing with appliance boards, wire, batteries, plastics, steel scrap, or unrelated low-grade boards.
The board does not need to boot or operate. Scrap value is based on recoverable materials, CPU presence, component completeness, connector condition, and contamination level.
CPU Completeness and Value
The CPU should remain installed whenever the buying category expects desktop motherboard with CPU material. The correct CPU package is Intel LGA1155, 37.5 mm × 37.5 mm.
A CPU-installed board is more valuable because the CPU contributes semiconductor material, package substrate, contact lands, internal metal layers, heat-spreader metal, and precious-metal-bearing internal structures. If the CPU is missing, the motherboard can still be recycled, but the value is lower. If the socket itself is damaged or removed, the downgrade is more serious because the contact field is also lost.
Keeping the CPU installed improves value within D Grade. It does not raise the board into C Grade, B Grade, A Grade, or A+ Grade because the motherboard remains a modern Acer/Gateway i-series desktop board with a metal LGA socket and cost-efficient consumer construction.
Acceptable Removals
The following removals usually do not change the D Grade identity if permanent electronics remain attached:
CPU heatsink.
CPU cooling fan.
Chipset heatsink, if the chipset package remains undamaged.
Loose DDR3 memory modules.
Loose PCI Express graphics card.
Loose expansion cards.
I/O shield.
Case screws and brackets.
External cables.
Plastic case parts.
Non-electronic accessories.
The detailed D Grade standard allows removal of non-electronic accessories such as heatsinks, cooling fans, metal brackets, plastic housings, and loose cables, while permanent electronic components should remain attached because they contribute to recoverable value.
Conditions That Reduce Value
The following conditions reduce buying value:
CPU missing when CPU-installed boards are expected.
LGA1155 socket bent, cracked, burned, corroded, or removed.
Intel chipset package removed or damaged.
DDR3 slots removed or broken.
PCI Express slots harvested or cracked.
SATA connectors removed.
BIOS chip removed.
LAN or audio controller sections harvested.
Rear I/O ports broken or missing.
ATX power connector removed.
PCB cracked, drilled, cut, snapped, or missing sections.
Coin-cell battery leakage.
Heavy oxidation or corrosion.
Burned or carbonized PCB areas.
Water damage or delamination.
Oil, adhesive, paint, chemical contamination, or excessive thermal paste.
Mixed loads containing appliance boards, wire, batteries, plastic, steel, power-supply boards, or unrelated scrap.
The D Grade standard notes that missing processors, removed chipsets, broken PCB sections, heavy corrosion, burn damage, water intrusion, battery leakage, oil contamination, and large cut sections may reduce grade or buying value.
Rejection Conditions
A board may be rejected from sorted D Grade motherboard buying or moved to a lower mixed-PCB category if the expected recoverable structure cannot be inspected. Severe rejection or downgrade conditions include:
Board cut into multiple pieces.
CPU socket removed.
Main chipset package removed.
Heavy IC harvesting.
Severe fire damage.
Severe corrosion across CPU, memory, or chipset areas.
PCB swelling or delamination from water damage.
Battery leakage destroying traces.
Heavy chemical contamination.
Mixed trash load where the motherboard cannot be separated.
A clean, complete, CPU-installed Acer IPISB-VR Rev. 1.01 is D Grade Board Scrap. A stripped, CPU-missing, broken, corroded, contaminated, or mixed board has lower value.
Handling and Storage
Store the motherboard flat, dry, and separated from heavy scrap. Do not crush it under power supplies, transformers, motors, steel, batteries, or mixed e-waste. Moisture should be avoided because it attacks LGA1155 contacts, DDR3 contacts, PCI Express contacts, SATA contacts, USB contacts, LAN contacts, solder joints, chipset pads, and exposed copper.
CPU-installed boards should be separated from CPU-missing boards. D Grade desktop boards should be separated from B Grade desktop boards, C Grade standard boards, A Grade laptop boards, A+ Apple logic boards, appliance boards, power-supply boards, batteries, wires, plastics, and mixed low-grade material. Proper sorting protects value and prevents an otherwise acceptable board from being averaged down in a mixed lot.
Comparison, and Official Ohata Classification
Comparison with Laptop Motherboards
Laptop motherboards are typically more compact and denser than this board. They use SO-DIMM memory, flat-flex connectors, battery/power circuitry, notebook display connectors, and proprietary shapes. Non-Apple laptop motherboards are typically A Grade under the Ohata method. The Acer IPISB-VR is a desktop motherboard with full-size DDR3 DIMMs, PCI Express slots, ATX power, and desktop I/O, so it should not be sorted as laptop motherboard scrap.
Comparison with Apple Logic Boards
Apple logic boards are compact, high-density Apple laptop or all-in-one system boards and are commonly treated as A+ Grade because of their dense BGA packaging and proprietary high-density construction. The Acer IPISB-VR is a desktop Acer/Gateway motherboard and must not be mixed with Apple logic boards.
Comparison with B Grade Boards
B Grade boards include medium-grade electronic boards such as desktop motherboards with medium-value CPU socket designs, lower-grade telecom boards, embedded boards, server boards of lower complexity, and peripheral interface boards. The IPISB-VR is more cost-optimized and less dense than typical B Grade boards. Its i-series metal-socket desktop architecture places it into D Grade under Ohata’s specific rule.
Comparison with C Grade Boards
C Grade boards include standard desktop motherboards, graphics cards, trimmed expansion cards, and interface cards with moderate recoverable value. The IPISB-VR has a complete desktop layout, but it is a later consumer i-series motherboard with integrated platform architecture and limited support-chip density. The D Grade standard is the more accurate Ohata classification.
Comparison with Appliance Boards
Appliance boards are designed for motors, relays, compressors, heaters, pumps, sensors, and appliance user interfaces. The Acer IPISB-VR is designed for digital computing. It has a CPU socket, DDR3 memory, PCI Express expansion, chipset, BIOS, SATA, USB, LAN, audio, and display output. It should not be sorted as Appliance Board A or Appliance Board B.
Official Ohata Classification Claim
The Acer IPISB-VR Rev. 1.01 / Pegatron IPISB-VR Intel H67 LGA1155 DDR3 desktop motherboard is classified as:
Ohata Board Scrap Classification: D Grade Board Scrap
This classification is based on the following confirmed characteristics:
Desktop computer motherboard.
Acer Inc. IPISB-VR Rev. 1.01 PCB marking.
Pegatron IPISB-VR project reference.
Associated Acer Aspire M1939 / M3970 and Gateway DX4860 desktop systems.
Intel LGA1155 / Socket H2 CPU interface.
Metal CPU socket load plate and lever.
37.5 mm × 37.5 mm compatible CPU package size.
Assumed compatible LGA1155 CPU installed.
Intel H67 Express-class desktop platform.
Four DDR3 DIMM slots.
DDR3 PC3-10600 1333 MHz Non-ECC memory reference.
One PCI Express x16 slot.
Three PCI Express x1-style slots.
Six SATA connector layout.
VGA and HDMI-class rear display outputs.
USB, LAN, and audio rear I/O.
ATX power connector and CPU power connector.
Standard consumer/OEM desktop PCB construction.
Modern Intel i-series metal-socket motherboard architecture matching Ohata D Grade guidance.
Recoverable copper, CPU socket contacts, memory connector contacts, PCI Express contacts, IC bond-wire material, solder, nickel-plated connectors, MLCC-related palladium, and limited gold-bearing contact surfaces.
The D Grade classification assumes that the motherboard is complete, clean, dry, structurally intact, and includes the CPU. If the CPU is missing, the chipset is removed, the LGA1155 socket is damaged, major connectors are harvested, the PCB is cracked, or the board is corroded, burned, water damaged, chemically contaminated, or mixed with miscellaneous scrap, the buying value may be reduced or the board may be rejected from the sorted D Grade motherboard category.
The Ohata Board Scrap Classification System is an internal Ohata value-identification and sorting method for electronic scrap purchasing, warehouse grading, and recycling education. It is not an international standard, government regulation, ISO standard, or universally accepted industry classification. Final grade depends on physical inspection, CPU presence, board completeness, contamination level, and actual recoverable material condition.
Ohata MotherBoard Scrap Wiki Claim
The Ohata Wiki is an educational knowledge base developed and maintained by Ohata to provide information on electronic scrap identification, recycling technologies, material classification, and sustainable resource recovery. The content published in the Ohata Wiki is based on Ohata's operational experience, research, and educational objectives. It is intended to assist recyclers, businesses, researchers, students, and the public in understanding electronic materials and recycling practices.
The Ohata Wiki is designed as an educational reference only. It does not replace professional technical advice, engineering analysis, laboratory testing, or official industry standards.
Ohata MotherBoard Classification Claim
Use this model page when the IPISB-VR silkscreen and LGA1155 layout match. Record whether the CPU, socket hardware and heatsinks are present, then apply the current D Grade conditions. For the general definition of D Grade, continue to the classification overview.
