HP EliteDesk 800 G4 Mini (Renewed) Review: Is this Professional Mini PC Still Worth It?

The HP EliteDesk 800 G4 Mini demonstrates why enterprise-grade professional PCs have such a long lifespan. Thanks to its Intel Core i5-8500T 6-core processor, ultra-durable steel chassis, and impeccable quietness, it surpasses most modern budget mini PCs in durability and expandability. It's a great buy for advanced office tasks, multitasking, and home servers—as long as you're not looking to play the latest AAA games.

• Pros: Military-grade metal chassis, true 6 cores for consistent performance, absolute silence under load, 2 NVMe slots + 2.5" bay, and excellent driver support.

• Cons: Limited Intel UHD 630 integrated graphics for modern gaming, variable Wi-Fi/Bluetooth ports depending on the refurbisher, and slightly larger size than ultra-compact NUC-type devices.

• Conclusion: For its price on the refurbished market, it offers a build quality and expandability that no modern plastic equipment in its price range can match.

🛒 Check price and availability on Amazon

📦 Unboxing and Box Contents

Since this is a refurbished unit , the packaging is not the original HP retail box, but a neutral, high-density protective box designed for safe shipping. Inside you will find:

• 🖥️ HP EliteDesk 800 G4 Mini Mini PC.

• 🔌 Original HP 65W (or 90W depending on configuration) external power adapter with power cord.

• 📶 External Wi-Fi antennas (or internal module with integrated antenna depending on the refurbisher).

• 📋 Test and refurbishment certification sheet with pre-activated Windows 11 Pro license.

📋 Key Technical Specifications

🎨 Design and Construction Quality

Holding the HP EliteDesk 800 G4 Mini in your hand conveys a feeling opposite to that of budget mini PCs from emerging Chinese brands.

Its chassis is constructed entirely of heavy-gauge industrial steel with a fingerprint- and scratch-resistant matte black finish. It meets MIL-STD 810G durability standards, meaning it's designed to operate 24/7 for years.

Accessing the interior requires no complex tools: simply loosen a single thumbscrew at the rear to slide off the top cover.

The internal layout is a work of art in miniaturization engineering, with an airflow system that separates the heat from the hard drive and memory from the processor area.

🖥️ Screen and Multimedia

Although the mini PC does not include a screen or high-fidelity speakers, its Intel UHD 630 graphics chip handles video playback smoothly.

• Multi-display support: With its 2 native DisplayPort ports plus the HDMI port of the Flex IO module, it allows you to connect up to 3 4K monitors at 60 Hz simultaneously in a completely smooth way, which is ideal for work environments with massive spreadsheets, programming or monitoring.

• Sound experience: It includes a small internal speaker in the chassis designed for system announcements and voice instructions during video calls. For music or movies, it has a 3.5 mm combo jack for headphones and microphone on the front, as well as a dedicated line output on the back.

⚡ Performance and Software

The Intel Core i5-8500T processor is the heart of this machine. With 6 true desktop architecture cores (unlike the 2- or 4-core laptop variants of previous generations), its performance in Windows 11 Pro is exceptionally responsive.

• Smoothness and multitasking: Opening dozens of tabs in Chrome along with heavy Excel documents, video conferences in Teams and Spotify playing in the background doesn't cause the slightest lag.

• Clean operating system: As this is a professional-grade refurbished computer, the Windows 11 Pro installation comes completely clean of bloatware or filler games. HP drivers are automatically updated seamlessly via Windows Update.

🛒 Check price and availability on Amazon

🔋 Energy Consumption and Cables

Power consumption is one of its strongest points compared to a traditional desktop tower:

• Idle power consumption: Just 8W - 11W, perfect for leaving it on as a file server or Home Assistant.

• Power consumption under maximum load: It stabilizes at around 35W - 45W, well below the 200W+ that a conventional tower can consume.

• Power supply: Includes a compact transformer similar to that of a laptop (65W), with a standard three-pin power cable with ground connection.

🌡️ Temperature and Noise (Actual Thermal)

HP's cooling system uses a copper heatsink with a low-profile blower fan. In normal office use, the fan spins at minimal speed, becoming completely inaudible from more than half a meter away.

Under continuous stress (rendering or stress tests with Prime95), the CPU temperature stabilizes around 68°C–74°C, remaining well below the thermal throttling limit. The noise level drops to a low whisper that is never bothersome.

🔌 Connectivity and Extras

• Front ports: 1x USB-C 3.1 Gen 2 (10 Gbps with fast charging), 2x USB 3.1 Gen 2, combo jack and headphone output.

• Rear ports: 4x USB 3.1, RJ-45 Gigabit Ethernet port, 2x DisplayPort 1.2 and 1x HDMI.

• Security: Hardware-integrated TPM 2.0 chip, ensuring native and unconditional compatibility with Windows 11 and BitLocker disk encryption.

• Note: It does not include a fingerprint reader, NFC, or IP water resistance certification, as it is intended for indoor office or home use.

🔧 Expansion and Upgrades

Unlike computers with soldered memory, the HP EliteDesk 800 G4 Mini's expandability is excellent:

1. RAM Memory: It has 2 SO-DIMM DDR4 slots. It supports up to 64 GB of DDR4 RAM (2x32 GB at 2666 MHz or 3200 MHz).

2. M.2 SSD Storage: Features two M.2 NVMe PCIe 3.0 x4 slots. You can install a primary drive and add a second high-capacity SSD for backups. Supports up to 4 TB per M.2 2280 socket with current commercial SSDs (8 TB total).

3. 2.5-inch SATA bay: Includes space and interface for a third 2.5" SATA III SSD or HDD. Supports SSDs up to 8 TB capacity.

4. Recommended practical capacity: 16 TB (combining 2x 4 TB M.2 NVMe SSDs + 1x 8 TB 2.5" SATA SSD).

🛠️ Recommended components to upgrade this Mini PC on AliExpress:

• 🛒 Buy SO-DIMM DDR4 RAM memory modules to upgrade to 32GB or 64GB

• 🛒 Buy high-speed M.2 NVMe SSD drives (1TB / 2TB)

🆚 Comparison with Direct Competitors

💬 Reviews on Well-Known Pages

Hardware communities and specialized portals overwhelmingly support refurbished corporate mini PCs over new budget options:

• Reddit (r/MiniPCs and r/Homelab): It's hailed as one of the "value-for-money home servers." Users particularly appreciate the inclusion of two M.2 NVMe slots, which allow for creating fast storage RAID arrays without breaking the bank.

• Amazon Verified Reviews: Reviews highlight the quiet operation and the speed at which Windows 11 Pro boots. The few user complaints usually stem from sellers who ship Wi-Fi adapters via USB dongle instead of the internal M.2 card.

• Hardware Forums (ServetheHome): They highlight the robustness of the HP motherboard and its electrical protections against overvoltage compared to motherboards from Chinese white-label brands.

🧪 Technical Tests (Benchmarks)

Using the i5-8500T, 16GB DDR4 RAM and NVMe SSD configuration as a reference:

• Cinebench R23:

  • Single-Core: 940 pts (Excellent response when opening applications and browsing).

  • Multi-Core: 3,820 pts (Clearly surpasses the ~3,000 pts average obtained by the Intel N100 quad-core processor).

• CrystalDiskMark (SSD Speed):

  • Sequential read: 2,450 MB/s

  • Sequential write speed: 1,800 MB/s

• Multitasking stress test: Simultaneous execution of 1080p video rendering in Handbrake + 4K streaming on YouTube + 20 browser tabs. CPU usage remained at 100% with no frequency drops due to temperature for over 1 hour.

🎮 Gaming and Emulation

The integrated Intel UHD 630 graphics card is designed for productivity, not for demanding, next-generation games, but it offers acceptable results in light titles and emulation:

• Lightweight PC games / eSports:

  • League of Legends (1080p on medium): 60-75 FPS (Completely playable).

  • CS:GO / Counter-Strike 2 (720p on low): 35-45 FPS.

  • Valorant (1080p on low): 50-60 FPS.

• Emulation:

  • PS1, N64, Game Boy Advance, Arcade: 100% perfect.

  • PSP and Nintendo DS: 100% smooth (enhanced resolution x2).

  • PS2 (PCSX2) and GameCube (Dolphin): Performs well in 70% of the catalog at native 720p resolution.

❓ Frequently Asked Questions (FAQ)

Does it officially support Windows 11?

Yes, the 8th generation Intel Core i5-8500T processor formally meets all of Microsoft's requirements, including the hardware-active TPM 2.0 chip.

Can it be used as a 24/7 server (Proxmox, Plex, Docker)?

This is one of its best uses. It supports hardware virtualization (Intel VT-x/VT-d), consumes very little power when idle, and its Intel QuickSync encoder allows you to transcode video streams in Plex seamlessly.

Does it come with Wi-Fi and Bluetooth installed?

The vast majority of refurbished units include wireless connectivity, either through the original internal Intel M.2 card or through adapters included by the refurbisher.

🏁 Final Conclusion

The HP EliteDesk 800 G4 Mini (Renewed) proves that a refurbished professional computer is often a smarter buy than a new consumer PC at the same price. Its high-quality chassis, 6-core processor, and, above all, its extensive expandability (up to 64GB of RAM, 2x NVMe drives, and 1x SATA port) make it an indestructible tool for everyday work or advanced projects.

Ideal for:

• Remote workers looking for a powerful, fast and completely silent PC for advanced office applications.

• Users who need to connect 2 or 3 monitors simultaneously.

• Technology enthusiasts who want to set up a low-power home server (Proxmox, Home Assistant, Plex or Docker).

Not recommended for:

• Gamers looking to play modern AAA PC titles.

🛒 Where to Buy

You can purchase this refurbished Mini PC with a money-back guarantee or get its expansion components through the following links:

• 🛒 Buy HP EliteDesk 800 G4 Mini on Amazon

• 🛒 Find deals on the HP EliteDesk 800 G4 Mini on AliExpress

• 🛠️ Check out DDR4 SO-DIMM RAM modules on AliExpress to upgrade your system.

• 🛠️ Check out M.2 NVMe SSD drives on AliExpress to upgrade