Please allow ~4-6 weeks to dispatch from Australia for quality control. Only 4 devices per customer may be shipped each day, so orders placed for more than 4 devices will be shipped over multiple days.
Products containing Lithium-Ion batteries (laptops and smartphones) are subject to extra safety requirements and are experiencing further delays.
If you are ordering a device that does not include a Windows 11 licence as standard, please check Microsoft's minimum system requirements to confirm if it can be upgraded later should you wish to do so.
Product images are for illustrative purposes only and may contain AI-generated content. They do not represent the exact product that is subject to the cosmetic grading policy detailed here.



HP ZBook 15 G5 Motherboard L28695-001 E-2186M - Certified Refurbished
Professional-grade system board for the HP ZBook 15 G5 Mobile Workstation featuring Intel Xeon E-2186M processor (6-core, 12-thread, up to 4.8 GHz), NVIDIA Quadro P2000 4GB discrete graphics, dual Thunderbolt 3 ports, ECC memory support up to 64GB, and comprehensive I/O connectivity — designed for demanding workstation applications with enterprise security features and backed by a 12-month warranty from Reboot IT.
What Makes the HP ZBook 15 G5 a Premium Mobile Workstation Choice?
- Intel Xeon E-2186M vPro processor with 6-cores/12-threads and up to 4.8 GHz turbo frequency — delivering exceptional multi-threaded performance for CAD, engineering simulations, video editing, and data analysis applications that demand consistent processing power under sustained workloads.
- NVIDIA Quadro P2000 4GB professional graphics with 768 CUDA cores — ISV-certified for Autodesk AutoCAD, SolidWorks, Adobe Creative Suite, and other professional applications requiring OpenGL acceleration and precision visual computing capabilities.
- ECC memory support up to 64GB DDR4-2667 in dual-channel configuration — error-correcting memory prevents data corruption during critical calculations, essential for scientific computing, financial modeling, and mission-critical business applications.
- Dual Thunderbolt 3 ports with 40 Gbps bandwidth and DisplayPort 1.2 support — enables connection to high-resolution displays, external GPU enclosures, and ultra-fast storage arrays while supporting daisy-chaining up to 6 devices per port.
- MIL-STD 810G certification across 19 durability tests — engineered to withstand extreme temperatures, humidity, vibration, and shock conditions typical in field work environments and mobile professional usage scenarios.
- Intel vPro technology with remote management capabilities — IT administrators can perform out-of-band management, remote diagnostics, and security enforcement even when the operating system is offline or unresponsive.
How Does the HP ZBook 15 G5 Perform in Daily Professional Use?
The Intel Xeon E-2186M processor excels in professional workflows requiring sustained computational power. With its 45W TDP and advanced thermal design, this workstation maintains consistent clock speeds during extended rendering sessions, complex simulations, and parallel processing tasks. The 12MB Intel Smart Cache significantly reduces memory latency when switching between large datasets, while Intel Turbo Boost Technology automatically scales performance based on workload demands.
The integrated NVIDIA Quadro P2000 delivers reliable performance across professional graphics applications. With 4GB of dedicated GDDR5 memory and 768 CUDA cores, it handles real-time viewport manipulation in SolidWorks assemblies with thousands of components, smooth playback of 4K video timelines in Adobe Premiere Pro, and accelerated rendering in Blender and KeyShot. The professional-grade drivers receive regular ISV certification updates, ensuring compatibility with the latest versions of industry-standard software.
For data-intensive workloads, the dual-channel DDR4-2667 memory architecture with ECC support provides both performance and reliability. Error-correcting memory automatically detects and corrects single-bit errors that could otherwise cause application crashes or data corruption during long-running calculations. The system board supports up to 64GB of registered ECC memory, providing ample capacity for large 3D models, high-resolution image editing, and in-memory database operations.
Complete Technical Specifications
| Processor | Intel Xeon E-2186M vPro (8th Gen Coffee Lake-H) |
| CPU Cores/Threads | 6 cores / 12 threads |
| Base/Turbo Frequency | 2.9 GHz base, up to 4.8 GHz turbo |
| CPU Cache | 12 MB Intel Smart Cache |
| TDP | 45W |
| Discrete Graphics | NVIDIA Quadro P2000 4GB GDDR5 |
| CUDA Cores | 768 |
| Integrated Graphics | Intel UHD Graphics P630 |
| Chipset | Mobile Intel CM246 |
| Memory Slots | 4x SODIMM slots |
| Max Memory | Up to 64GB ECC DDR4-2667, 128GB non-ECC |
| Memory Type | DDR4-2667 dual-channel |
| ECC Support | Yes (with Xeon processor) |
| Storage Interface | 2x M.2 PCIe NVMe + SATA, 1x 2.5" SATA III |
| RAID Support | Intel RST (RAID 0, 1, 5) |
| USB Ports | 3x USB 3.1 Gen 1 Type-A (5 Gbps), 2x Thunderbolt 3 Type-C |
| Thunderbolt 3 | 2 ports, 40 Gbps, USB 3.1 Gen 2, DisplayPort 1.2, PCIe |
| Display Outputs | 1x HDMI 1.4, 1x Mini DisplayPort 1.3, 2x TB3 |
| Network | Intel I219LM Gigabit Ethernet (vPro AMT) |
| Wireless Support | M.2 A-key slot (Intel 802.11ac + Bluetooth 5.0) |
| Audio | 1x 3.5mm combo headphone/microphone jack |
| Card Readers | 1x SD 3.0 Media Card Reader, Smart Card Reader (optional) |
| Security | TPM 2.0 firmware-based, Intel vPro, HP Sure Start Gen4 |
| BIOS | UEFI with HP Sure Start self-healing technology |
| Power Support | 150W/200W Smart AC Adapter, 90Wh battery connector |
| Operating Temperature | 5°C to 35°C (41°F to 95°F) |
| Certifications | MIL-STD 810G, ENERGY STAR 6.1, EPEAT Gold, TCO 5.0 |
| Form Factor | Proprietary HP ZBook 15 G5 chassis-specific |
| Part Number | HP L28695-001 (DSC P2 4GB E-2186M System Board) |
Is the HP ZBook 15 G5 Right for Your Needs?
|
✓ Best For: • CAD/CAM design and engineering simulation workloads • Professional video editing and motion graphics production • Scientific computing and data analysis applications • 3D rendering and visualization projects • IT environments requiring vPro remote management |
✗ Not Recommended For: • Gaming or consumer entertainment applications • Basic office tasks that don't require workstation performance • Budget-conscious users seeking entry-level computing • Environments without adequate cooling infrastructure • Applications requiring the latest DDR5 memory technology |
Understanding Condition Grades and Battery Health
All HP ZBook 15 G5 motherboards are professionally refurbished by Reboot IT using certified technicians and genuine HP components. Our transparent grading system ensures you know exactly what to expect from your purchase. Each motherboard undergoes comprehensive diagnostic testing including component validation, thermal stress testing, and connectivity verification.
| A — Excellent | Minimal wear, no visible scratches or dents | 70%+ original capacity |
| B — Good | Light usage marks, possible minor scratches | 50-70% original capacity |
| C — Fair | Noticeable wear, scratches up to 5cm visible | Under 50% original capacity |
All laptops and tablets include a 30-day battery warranty covering defective batteries that fail to hold charge. This warranty is separate from the main system warranty and ensures your mobile workstation maintains adequate battery life for professional use.
Frequently Asked Questions About the HP ZBook 15 G5
What warranty is included with this motherboard?
Every HP ZBook 15 G5 motherboard includes a comprehensive 12-month warranty provided by Reboot IT, covering all components, functionality, and manufacturing defects. This warranty matches what you'd receive with new equipment.
Is this motherboard compatible with non-ECC memory?
Yes, while the Intel Xeon E-2186M supports ECC memory for maximum reliability, the motherboard also accepts standard non-ECC DDR4-2667 SODIMMs up to 128GB total capacity for cost-sensitive applications.
Can I upgrade the CPU or GPU on this motherboard?
No, both the Intel Xeon E-2186M processor and NVIDIA Quadro P2000 graphics are permanently soldered to the motherboard and cannot be upgraded independently. This is standard for mobile workstation platforms.
What external displays can I connect simultaneously?
The motherboard supports up to four external displays: two via Thunderbolt 3 ports (DisplayPort 1.2), one via Mini DisplayPort 1.3, and one via HDMI 1.4, plus the internal laptop display for five total screens.
Does this support Windows 11 Professional?
Yes, the Intel Xeon E-2186M meets all Windows 11 system requirements including TPM 2.0, UEFI firmware, and Secure Boot capability. The integrated TPM 2.0 chip ensures full BitLocker encryption support.
What's the difference between this and consumer laptop motherboards?
This workstation motherboard features ECC memory support, professional-grade Quadro graphics with ISV certification, Intel vPro remote management, enterprise security features, and MIL-STD durability testing—capabilities not found in consumer platforms.
Is the Thunderbolt 3 implementation fully featured?
Yes, both Thunderbolt 3 ports provide the complete 40 Gbps bandwidth, USB 3.1 Gen 2 compatibility, DisplayPort 1.2 video output, PCIe tunneling for external GPUs, and USB Power Delivery support for compatible devices.
Warranty and After-Sales Support
Your HP ZBook 15 G5 motherboard is protected by a comprehensive 12-month warranty provided by Reboot IT, Australia's trusted refurbished technology specialist since 2001. This warranty covers all electronic components, functionality, and manufacturing defects, giving you the same peace of mind as purchasing new equipment.
Our warranty includes free repair or replacement for any component failure, comprehensive technical support from certified technicians, and Australia-wide warranty service. For laptops and tablets, we also provide a separate 30-day battery warranty that covers batteries failing to maintain adequate charge capacity.
Every motherboard undergoes Reboot IT's rigorous refurbishment process including component-level diagnostic testing, thermal stress validation, and quality assurance by certified technicians using genuine HP replacement parts when required.
Upgradeability and Compatibility Options
The HP ZBook 15 G5 motherboard supports memory expansion up to 64GB ECC DDR4-2667 or 128GB non-ECC across four SODIMM slots. Storage can be configured with dual M.2 NVMe SSDs in RAID 0/1/5 configuration for maximum performance or redundancy, plus an additional 2.5-inch SATA drive for bulk storage. The wireless module is user-replaceable via the M.2 A-key slot, supporting upgrades to newer Wi-Fi standards or adding WWAN cellular connectivity.
The system board is Windows 11 Professional ready with full TPM 2.0 encryption support and meets all modern security requirements for enterprise deployment. All USB-C/Thunderbolt 3 ports support USB4 devices for future-proofed connectivity, while the professional Quadro P2000 graphics provide long-term ISV driver support for professional applications.
On-Board Audio | On-Board Video Chipset |
| Manufacturer Warranty | 3 Months |
| Features | None |
| Item Height | None |
| Item Width | None |
| Model | M46074-601 |
| Motherboard Brand | HP |
| Type | Motherboard |
| Processor Model | i5-1145G7 |
| Input/output Ports | None |
| Expansion Slots | None |
| Item Weight | None |
| Cpu Clock Speed | 2.60GHz |
| Compatible Cpu Brand | Intel |
| Memory Type | DDR4 SODIMM |
| Form Factor | None |
| Cpu Bus Speed | 4 GT/s |
| Custom Bundle | No |
| Number Of Cpu Cores | 4 |
| Cpu L2 Cache | None |
| Most Suitable For | Casual Computing |
| Compatible Brand | For HP |
| Socket Type | None |
| Number Of Memory Slots | 2 |
| Cpu L3 Cache | 8 MB |
| Cpu Series | Core i5 |
| Item Length | None |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade is reserved for units that show evidence of very little to no previous use. Any wear on an "Excellent" Display, including housing/frame and/or external surfaces (i.e. Frame) is associated with standard minimal use. "Excellent" units may have minor scuffing and / or minor abrasions on plastics with from standard light previous use."Excellent" Displays will feature no scratches, cracks, chips, dead pixels, dark spots, discoloration or blemishes. Units will only feature the standard minimal wear and tear that is associated with a used unit.
"Good" Grade - Laptops
"Good" laptops may feature one or several small dings or dents on covers and / or small paint chips on the surface or small hairline cracks in the bezel. Laptop screens may feature uneven light diffusion in screen and may feature subtle blemishes. "Good" Laptops will not feature cracks screens but may feature slight scratching, dead pixels or white spots on the screen.
"Good" Grade - Desktops
"Good" grade desktops may have light scratches on external body and may feature more excessive unit housing and/or external case wear than "Excellent" units, including wear on case / lid. "Good" PCs may feature one or several small dings or dents on covers and / or small paint chips on the surface.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include scratches on body, small paint chips, minor cracks on body, loose and/or wobbly bases. "Good" Display screens may feature uneven light diffusion in screen and may feature subtle to moderate blemishes. "Good" Displays will not feature cracks on screens but may feature slight scratching on screen surfaces from moderate use or wear, dead pixels or white spots on the screen.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade









