ASUS Prime Z390-P LGA1151 (Intel 8th and 9th Gen) ATX Motherboard for Cryptocurrency Mining(BTC) with Above 4G Decoding, 6xPCIe Slot and USB 3.1 Gen2
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AI Verdict
This is a barebones workhorse built for 6-GPU mining rigs and stock 9th Gen Intel CPUs, but its weak VRMs will choke if you try overclocking an i9.
This board serves as a reliable mining platform and a stable base for stock 9th Gen Intel CPUs. The entry-level VRMs and sparse fan headers make it a poor choice for high-end overclocking or complex custom-loop builds.
If you want to push an i9-9900K to 5GHz, step up to the ASUS Prime Z390-A for its 9-phase power delivery and larger VRM heatsinks.
Regret Score™
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Critically weak dimension
Amazon rating vs actual quality
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Pros
- Runs six GPUs natively for mining via six PCIe slots and Above 4G Decoding
- Supports 9th Gen Intel CPUs out of the box without requiring a BIOS flash
- Includes dual M.2 slots supporting PCIe 3.0 x4 NVMe SSDs
- BIOS interface allows easy disabling of onboard audio and SATA ports to free up PCIe lanes for HiveOS
Cons
- Entry-level VRMs cause power limit throttling when pushing a 5GHz all-core overclock on an i9-9900K
- Provides only two chassis fan headers, requiring Y-splitters for standard case cooling
- Features only four SATA 6Gb/s ports, limiting bulk storage arrays
- Lacks built-in Wi-Fi, Bluetooth, and a pre-installed I/O shield
Dimension Scores
The basic power phases cause severe throttling when pushing 1.3V to an overclocked i9-9900K.
Includes dual M.2 slots and USB 3.1 Gen2, but cuts costs by omitting Wi-Fi and providing only four SATA ports.
Six PCIe slots and Above 4G Decoding make it an excellent foundation for multi-GPU mining rigs.
The UEFI interface makes it simple to force PCIe Gen1 and disable onboard devices for HiveOS compatibility.
Best For
- Cryptocurrency miners building 6-to-8 GPU rigs using PCIe risers and HiveOS
- Gamers running stock 9th Gen Intel CPUs like the i5-9600K or i7-9700K
- Budget builders needing dual M.2 slots on the LGA 1151 platform
Not Recommended For
- Enthusiasts planning 5GHz+ overclocks on an i9-9900K
- Users needing out-of-the-box Wi-Fi or extensive RGB lighting setups
Watch Out For
- Only two chassis fan headers exist on the board — you absolutely need fan splitters or a fan hub to cool a standard ATX case.
- Getting 8 GPUs to work requires disabling onboard audio, SATA ports, and memory remap in the BIOS while forcing PCIe Gen1.
- The VRMs run hot under heavy loads — pushing 1.3V for a 5GHz overclock on an i9 will cause severe power limit throttling.
Full Specifications
| ASIN | B07HCT5GBD |
| Brand | ASUS |
| Series | Prime Z390-P |
| Platform | Windows 10 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| CPU Model | Core i9 |
| Processor | core_i9 |
| CPU Socket | LGA 1151 |
| Model Name | Prime Z390-P |
| Item Weight | 1.32 pounds |
| Chipset Type | Intel Z390 |
| Manufacturer | ASUS Computer International Direct |
| Memory Speed | 2400 MHz |
| Wireless Type | 802.11ac |
| Item model number | Prime Z390-P |
| Compatible Devices | Personal Computer, Desktop |
| Memory Clock Speed | 2400 MHz |
| Product Dimensions | 12.91 x 2.09 x 10.34 inches |
| Computer Memory Type | DDR4 SDRAM |
| Compatible Processors | Intel Socket 1151 9th / 8th Gen Intel Core, Pentium Gold and Celeron Processors |
| RAM Memory Technology | DDR4 |
| Item Dimensions LxWxH | 12.91 x 2.09 x 10.34 inches |
| Is Discontinued By Manufacturer | No |
What Buyers Say
Miners and budget builders buy this board for its raw utility, but overclockers quickly hit a wall. The six PCIe slots and Above 4G Decoding make it a favorite for 6-GPU mining rigs running HiveOS. Gamers find it a stable home for a stock i7-9700K. The biggest shock for first-time builders is finding only two chassis fan headers, forcing a scramble for Y-splitters.
“Great for my 6 card mining rig and runs my i7 fine, but only having two fan headers is a joke and the VRMs will cook if you try to overclock an i9.”
Common Praise
- Detects 6 GPUs instantly for mining once Above 4G Decoding is enabled
- Runs 9th Gen Intel CPUs right out of the box with no BIOS update required
- BIOS interface makes setting up HiveOS from a USB drive painless
- Dual M.2 slots provide plenty of room for fast NVMe storage
Common Complaints
- Only two chassis fan headers makes wiring a standard gaming case frustrating
- VRMs get dangerously hot when trying to overclock an i9-9900K
- Lacks an integrated I/O shield, making installation feel cheap
- Only four SATA ports limits options for users with multiple older hard drives
Ownership Tips
- Getting more than 6 GPUs requires disabling SATA ports and onboard audio to free up PCIe lanes
- The white pattern on the PCB looks great in white-themed builds but clashes with darker components
- You must force PCIe to Gen1 in the BIOS for stable multi-GPU mining
Frequently Asked Questions
Can this motherboard handle an i9-9900K?
Yes, but only at stock speeds. Pushing a heavy all-core overclock causes the entry-level VRMs to overheat and trigger power limit throttling.
How many GPUs can I run for mining?
You can run 6 GPUs out of the box using the PCIe slots. Adding M.2 to PCIe adapters and tweaking the BIOS (disabling SATA and audio) allows up to 8 GPUs.
Does this board have built-in Wi-Fi?
No, it lacks onboard Wi-Fi and Bluetooth. You need to buy a separate PCIe Wi-Fi card or use a USB dongle.
Will my NVMe drive work at full speed?
Yes, both M.2 slots support PCIe 3.0 x4 speeds. Drives like the WD Black SN750 will run at their maximum rated 3,470 MB/s read speeds.
Do I need to update the BIOS for 9th Gen CPUs?
No, the Z390 chipset natively supports 9th Gen Intel processors out of the box without a BIOS flash.
Buying Guide
You are looking at a barebones workhorse designed for two specific jobs: cryptocurrency mining and running stock Intel 8th/9th Gen CPUs. Do not buy this expecting a premium overclocking experience. The power delivery is strictly entry-level, meaning high-end chips will throttle if pushed past stock speeds. You also need to plan your cooling in advance, as the board barely provides enough fan headers for a basic setup.
6x PCIe Slots & Above 4G Decoding
This allows the motherboard to assign memory to multiple graphics cards at once, which is the exact feature you need to build a 6-GPU cryptocurrency mining rig.
Z390 Chipset
It guarantees out-of-the-box compatibility with Intel's 9th Gen processors, saving you the headache of needing an older CPU just to update the BIOS.
2x Chassis Fan Headers
Most modern PC cases have at least three or four fans. With only two headers, you are forced to buy splitter cables to keep your system cool.
Alternatives
If you want to heavily overclock an i9 processor, look for a Z390 board with a 10+ phase VRM design and massive heatsinks. If you need wireless connectivity, search for models with 'AC' or 'WiFi' in the name.
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