ASRock Z390 Phantom Gaming 4 Motherboard

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63%
37%
67%
Value for Money
54%
Build Quality
83%
CPU Compatibility
51%
Memory Compatibility
71%
BIOS Experience
63%
Overclocking Headroom
58%
Connectivity & I/O
74%
Storage Options
61%
Multi-GPU Support
59%
Thermal Management
69%
Installation Experience
48%
Long-Term Reliability
72%
Aesthetics & Form
55%
Documentation & Support
More

Overview

The ASRock Z390 Phantom Gaming 4 Motherboard arrived in late 2018 as a mid-range option for Intel Coffee Lake Refresh builders who wanted a capable ATX platform without paying flagship prices. It fits standard mid-tower and full-tower cases without issue, and the Z390 chipset means overclocking is unlocked — a real advantage at this price tier. That said, the 3.1-star average across nearly 90 reviews is worth acknowledging right away. This review will get into what drives that score honestly, because there are genuine reasons buyers feel divided, and knowing them upfront is more useful than a polished sales pitch.

Features & Benefits

The Phantom Gaming 4 hits the core checkboxes for a Z390 build. Both 8th and 9th Gen Intel Core processors are supported via the LGA1151 socket, K-series chips included. Four DDR4 slots allow up to 64GB dual-channel RAM, which handles gaming and light content creation without needing an upgrade anytime soon. Two PCIe 3.0 x16 slots support CrossFireX multi-GPU configurations, and three flexible PCIe x1 slots leave room for extras like capture cards or a dedicated NIC. Onboard Wi-Fi is a thoughtful inclusion that saves you a slot and a separate purchase. The rear USB count is modest, though — only two USB 2.0 ports stands out when similar boards often offer more.

Best For

This Z390 board makes the most sense for builders pairing a Core i5 or i7 8th or 9th Gen processor with a mid-tier GPU. It's a solid fit for a budget gaming rig or a secondary machine that pulls double duty as an HTPC. If you want overclocking flexibility without the cost of a higher-end Z390 board, this ASRock motherboard gives you a reasonable on-ramp. Be clear-eyed about one thing, though: this is a closed mature platform. No path beyond 9th Gen Intel, no PCIe 4.0, no DDR5. For a focused build with known hardware, it works. For anything future-facing, it does not.

User Feedback

The 3.1-star average deserves a closer look rather than a dismissal. Positive reviews consistently highlight intuitive BIOS navigation and dependable performance at stock speeds — builders who run their system out of the box without tweaking tend to be satisfied. The complaints, however, are specific enough to take seriously. BIOS update procedures have frustrated a meaningful number of users, and XMP memory compatibility is inconsistent with certain kits, which is a real annoyance when RAM should just work. Scattered reports of DOA units and quality control variance also appear among verified purchasers. Some of these issues likely reflect edge cases, but the pattern is too consistent to brush aside.

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Pros

  • Supports both 8th and 9th Gen Intel Core CPUs, including unlocked K-series chips for overclocking.
  • Z390 chipset allows meaningful CPU overclocking without paying for a premium board.
  • Four DDR4 slots with up to 64GB capacity handles gaming and everyday multitasking comfortably.
  • Onboard 802.11ac Wi-Fi saves you the cost and a PCIe slot compared to add-in wireless cards.
  • Three flexible PCIe x1 slots give you room to add a capture card, sound card, or NIC without conflict.
  • Standard ATX form factor fits virtually any mid-tower or full-tower case without compatibility headaches.
  • BIOS navigation is consistently praised by users as straightforward, even for first-time builders.
  • Stable performance at stock speeds is a recurring positive in real-world user reports.
  • CrossFireX support offers multi-GPU flexibility for AMD graphics card users.
  • Competitive feature density for its market tier makes it a reasonable value when found at a fair price.

Cons

  • A 3.1-star aggregate rating across nearly 90 reviews signals reliability concerns that should not be ignored.
  • XMP memory profiles do not always initialize correctly, requiring manual BIOS tuning to reach rated speeds.
  • BIOS update process has frustrated multiple users, with reports of bricks and confusing flashing procedures.
  • Only two rear USB 2.0 ports is a noticeably thin offering compared to competing Z390 boards.
  • Secondary PCIe x16 slot drops to x4 bandwidth in dual-GPU mode, limiting CrossFireX real-world performance.
  • Scattered DOA and early failure reports suggest quality control is not as consistent as buyers expect.
  • Platform is a dead end — no upgrade path beyond 9th Gen Intel makes long-term investment questionable.
  • VRM cooling is not well-suited for sustained or aggressive overclocking on higher-TDP processors.
  • Limited availability of updated drivers and firmware support as the platform ages further.
  • Some buyers report the board does not always POST cleanly on the first build, requiring extra troubleshooting steps.

Ratings

The scores below for the ASRock Z390 Phantom Gaming 4 Motherboard were generated by our AI after analyzing verified buyer reviews from multiple global sources, with spam, bot-generated feedback, and incentivized reviews actively filtered out. We have weighted both the praise and the recurring frustrations equally, so what you see reflects the honest, collective experience of real builders — not a curated highlight reel. Strengths and pain points are represented transparently to help you make a fully informed decision.

Value for Money
67%
33%
Buyers who land this board at a competitive price and pair it with a modest 8th or 9th Gen chip generally feel the feature set justifies the spend. Onboard Wi-Fi, CrossFireX support, and four RAM slots at this price tier are hard to dismiss.
When priced close to more reputable Z390 alternatives, the value calculation shifts unfavorably given the reliability concerns. Users who experienced DOA units or had to return the board feel the savings were not worth the hassle.
Build Quality
54%
46%
For buyers who received a fully functional unit, the physical construction feels solid enough for a mid-range board — component placement is logical and the PCIe slots have adequate retention for standard GPU installations.
Quality control variance is the single biggest issue flagged by users. A notable portion of reviewers reported DOA units or early failures within the first few months, which is difficult to overlook at any price point.
CPU Compatibility
83%
Support for both 8th and 9th Gen Intel Core processors — including the full K-series lineup — gives builders real flexibility when sourcing used or discounted CPUs. Pairing a Core i7-9700K with this board works without issue for most users.
The platform ceiling is a hard stop at 9th Gen Intel, with no upgrade path forward. Builders who want to grow their system over time will eventually face a complete platform replacement rather than a simple CPU swap.
Memory Compatibility
51%
49%
Standard DDR4 kits running at JEDEC speeds slot in and work reliably for most users. Builders using basic 2400MHz or 2666MHz modules for a no-fuss gaming build rarely encounter problems.
XMP profiles are where things get messy — a consistent pattern of complaints involves higher-speed RAM kits failing to initialize at their rated speeds, requiring manual BIOS tuning. Some kits simply refuse to run stably regardless of configuration, which is a real frustration for buyers expecting plug-and-play memory performance.
BIOS Experience
71%
29%
First-time builders in particular appreciate how navigable the UEFI BIOS is compared to some competitors. Finding overclocking options, fan controls, and boot settings does not require prior expertise, and the layout is logically organized.
The BIOS update process has burned multiple users — flashing procedures are not as forgiving as those on competing brands, and a handful of verified buyers report bricked boards following firmware updates. Unless there is a specific reason to update, leaving the BIOS alone is the safer path.
Overclocking Headroom
63%
37%
The Z390 chipset provides full CPU overclocking access, and users running modest OC profiles on mid-tier K-series chips like the i5-9600K report stable results at reasonable voltages. For light overclocking, the board holds its own.
The VRM configuration is not designed for sustained heavy overclocking on power-hungry chips like the i9-9900K. Users pushing aggressive clock speeds report thermal instability under prolonged load, suggesting the power delivery is better suited for moderate tuning than enthusiast-level overclocking sessions.
Connectivity & I/O
58%
42%
The inclusion of onboard 802.11ac Wi-Fi is a genuine convenience that most competing boards at this price omit. The rear panel also includes USB 3.0 Type-A ports alongside legacy connectivity for older peripherals.
Only two rear USB 2.0 ports is noticeably thin for a full ATX board, and the overall rear I/O count falls short of what similarly priced Z390 alternatives offer. Users with multiple USB peripherals often find themselves relying on a hub or front-panel headers to compensate.
Storage Options
74%
26%
SATA and M.2 support through the Z390 chipset covers the storage needs of most mid-range builds. Users building around a single NVMe SSD plus a secondary SATA drive report no issues with the storage configuration.
Bandwidth sharing between M.2 slots and certain SATA ports is a common Z390 chipset limitation, and users who did not read the manual carefully before building occasionally discovered disabled SATA ports after populating an M.2 slot — a preventable but annoying surprise.
Multi-GPU Support
61%
39%
CrossFireX support for AMD dual-GPU configurations is functional, and users running two mid-range AMD cards in CrossFireX mode report the setup works as expected for gaming at higher resolutions.
The secondary PCIe x16 slot operates at x4 bandwidth in dual-GPU mode, which constrains real-world CrossFireX performance compared to true x16/x16 implementations. NVIDIA SLI is not supported, which limits multi-GPU options to AMD users only.
Thermal Management
59%
41%
At stock speeds with a typical 65W or 95W processor, the board runs cool and stable without requiring any special cooling attention. Builders using it in HTPC or secondary desktop roles rarely encounter heat-related issues.
The heatsink coverage on the VRM area is minimal compared to higher-end Z390 boards, and users pushing higher-TDP chips under sustained workloads have noted thermal stress on the power delivery components. This is not a board built for thermal headroom under pressure.
Installation Experience
69%
31%
The physical installation process is standard for an ATX board, and most builders describe the initial hardware assembly as straightforward. Component placement — including RAM slots, PCIe spacing, and M.2 slot access — is practical without major obstruction concerns.
Post-installation software setup and driver installation have caused friction for some users, particularly around getting the onboard Wi-Fi adapter recognized correctly in Windows. A small but recurring subset of builders also report that the board did not POST on the first attempt without troubleshooting steps.
Long-Term Reliability
48%
52%
Users who have had a stable unit running for a year or more tend to report continued trouble-free operation, suggesting that boards which pass the initial quality check perform acceptably over time.
The cumulative pattern of early failures, DOA reports, and QC variance across user reviews is the primary driver of the below-average overall rating. Long-term confidence in this ASRock motherboard is genuinely harder to recommend compared to Z390 boards from brands with stronger reliability track records.
Aesthetics & Form
72%
28%
The Phantom Gaming 4 carries a clean dark aesthetic with subtle gaming accents that fit well inside mid-tower builds with tempered glass panels. It does not look out of place next to a mid-range GPU and aftermarket cooler.
RGB lighting is limited compared to similarly priced boards from ASUS or MSI, which may disappoint builders focused on an illuminated build aesthetic. Those who prioritize visual customization will likely find the lighting options underwhelming.
Documentation & Support
55%
45%
The included manual covers the basics adequately for standard builds, and ASRock's website provides downloadable drivers and BIOS updates for the board. Community support threads exist for most common issues.
Official customer support responsiveness has been criticized by users dealing with DOA units and warranty claims. The BIOS update documentation in particular lacks the clarity needed to prevent the flashing errors that multiple users have encountered.

Suitable for:

The ASRock Z390 Phantom Gaming 4 Motherboard is a practical pick for builders who already own or plan to buy an Intel 8th or 9th Gen processor and want a capable ATX foundation without overspending on features they will never use. If you are putting together a mid-range gaming PC around a Core i5-9600K or Core i7-9700K paired with a single mid-tier GPU, this board gives you the overclocking flexibility of the Z390 chipset at a price point that leaves room in the budget for better RAM or storage. It also works well as the backbone of a secondary desktop, a home theater PC, or a hand-me-down build where squeezing value out of existing Intel hardware is the priority. The onboard Wi-Fi is a genuine convenience for builds where running an Ethernet cable is not practical. Buyers who run their system at stock speeds with compatible memory and have no plans to push the platform hard tend to come away satisfied.

Not suitable for:

Anyone building with future upgrades in mind should think carefully before committing to this board, because the LGA1151 platform ends at 9th Gen Intel — there is nowhere to go from here processor-wise. The ASRock Z390 Phantom Gaming 4 Motherboard is also not a strong fit for enthusiast builders who want robust VRM cooling for sustained overclocking sessions, a rich rear USB layout, or guaranteed XMP memory compatibility out of the box, as all three have been recurring frustrations in user feedback. If you are sensitive to quality control variance or have had bad experiences with DOA components, the scattered reliability concerns reported by verified buyers make this a riskier choice compared to similarly priced alternatives from competing brands. Power users planning dual-GPU CrossFireX setups should also note that the secondary PCIe slot drops to x4 bandwidth, which limits real-world multi-GPU performance. Builders starting fresh on a modern platform with PCIe 4.0, DDR5, or 12th Gen Intel and beyond should look elsewhere entirely.

Specifications

  • CPU Socket: Uses the LGA1151 socket, compatible with Intel 8th and 9th Gen Core processors including unlocked K-series chips.
  • Chipset: Built on the Intel Z390 chipset, which enables CPU overclocking and supports the full feature set of 9th Gen Coffee Lake Refresh.
  • Form Factor: Standard ATX form factor measuring 13 x 10 x 2 inches, fitting most mid-tower and full-tower PC cases.
  • Memory Slots: Four DDR4 DIMM slots configured for dual-channel operation, supporting non-ECC unbuffered modules up to 64GB total capacity.
  • Memory Speed: Base memory speed starts at 2400MHz with XMP profile support for higher-rated kits, though compatibility with certain XMP kits varies.
  • PCIe x16 Slots: Two PCIe 3.0 x16 slots that run at x16 with a single GPU or switch to x16 and x4 mode when both slots are occupied.
  • PCIe x1 Slots: Three flexible PCIe 3.0 x1 slots available for expansion cards such as capture cards, dedicated sound cards, or network adapters.
  • Multi-GPU Support: Supports AMD CrossFireX and Quad CrossFireX multi-GPU configurations using the two PCIe x16 slots.
  • Wireless: Onboard 802.11ac Wi-Fi is included, eliminating the need for a separate wireless expansion card in most standard builds.
  • Rear USB Ports: Rear I/O includes two USB 2.0 ports alongside additional USB 3.0 and Type-A ports, though the overall rear port count is modest for this class.
  • Storage Interface: Supports M.2 and SATA connections for SSDs and HDDs, consistent with the Z390 platform's standard storage feature set.
  • Audio: Onboard audio solution based on a Realtek codec, suitable for casual gaming and general use without a dedicated sound card.
  • Weight: The board weighs 2.2 pounds, which is typical for a standard ATX motherboard of this generation.
  • Dimensions: Physical dimensions are 13 x 10 x 2 inches, which aligns with the standard ATX specification for case and cooler clearance planning.
  • Power Connectors: Requires a standard 24-pin ATX main power connector and an 8-pin EPS CPU power connector from the PSU.
  • Compatible CPUs: Works with Intel Core i3, i5, i7, and i9 processors from both the 8th Gen Coffee Lake and 9th Gen Coffee Lake Refresh families.
  • BIOS: Ships with ASRock's UEFI BIOS interface, which users broadly report as accessible and relatively easy to navigate for both beginners and experienced builders.

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FAQ

Yes, the LGA1151 socket and Z390 chipset support the full 9th Gen Intel lineup, including the i9-9900K. That said, the i9-9900K is a high-TDP chip, and if you plan to push it with an aggressive overclock, be aware that the VRM setup on this board is not the most robust at this price tier — sustained heavy loads may cause thermal throttling without additional cooling consideration.

Possibly, but it depends on the specific kit. The Phantom Gaming 4 supports standard DDR4 speeds starting at 2400MHz, but XMP compatibility with certain third-party kits has been inconsistent based on user reports. If your sticks run at stock JEDEC speeds, they should work fine. If you rely on XMP to hit rated speeds like 3000MHz or 3200MHz, test carefully and have a BIOS fallback plan ready.

The 802.11ac Wi-Fi built into this board is fully functional for everyday use and works well enough for general browsing, streaming, and casual gaming. It is not a high-end Wi-Fi 6 solution, so if you are in a congested wireless environment or need rock-solid low-latency connectivity for competitive gaming, a wired Ethernet connection is always preferable. For most home setups, the onboard Wi-Fi is a convenient and capable option.

This is one area where you should go in prepared. Multiple users have reported frustration with the BIOS flashing procedure, including failed updates and in rare cases bricked boards. ASRock provides a USB BIOS Flashback-style utility, but make sure you follow the official instructions precisely, use a compatible USB drive formatted correctly, and only update if you have a specific reason to — if the board is running stable, there is limited benefit in updating unnecessarily.

Officially, the ASRock Z390 Phantom Gaming 4 Motherboard supports DDR4 at speeds well above the 2400MHz base through XMP overclocking, with some configurations reaching 4000MHz or higher depending on the CPU and memory kit. In practice, results vary — higher-speed kits sometimes require manual tuning in BIOS to run stably. For most users, 3000 to 3200MHz dual-channel kits hit the best balance of performance and compatibility.

You can run two AMD GPUs in CrossFireX using the two PCIe x16 slots, but keep in mind the second slot drops to x4 bandwidth when both are populated. In practice, this bandwidth difference matters less for most gaming workloads than it sounds on paper, but it is worth knowing. NVIDIA SLI is not supported on this board.

No — the LGA1151 socket on this board is strictly limited to 8th and 9th Gen Intel Core processors. Intel's 10th Gen and newer platforms use different socket types and are not compatible. If you are planning a build with a 10th Gen or later chip, this board is not the right foundation.

The Z390 chipset typically provides six SATA ports for traditional drives and HDDs, plus one or two M.2 slots for NVMe or SATA-based SSDs. The exact M.2 slot count and any bandwidth sharing between M.2 and SATA ports is worth confirming in the ASRock product manual before finalizing your storage layout, as some slot combinations can disable certain SATA ports.

It is a legitimate concern. The 3.1-star average reflects a pattern that goes beyond isolated complaints, and DOA reports do appear among verified purchasers with enough frequency to take seriously. That said, the majority of units do function as expected. Buying from a seller with a clear return policy is strongly recommended so that if you do receive a faulty unit, the process of replacing it is straightforward. Testing the board with minimal components before completing the full build is also good practice.

It can be, with some caveats. The BIOS is genuinely user-friendly, which helps newcomers get up and running without confusion. However, the potential for XMP memory issues and the somewhat finicky BIOS update process mean you should go in with patience and do your homework on compatible memory kits beforehand. If you are building around a 9th Gen Intel chip at a constrained budget and willing to do a little research upfront, the Phantom Gaming 4 is a workable option — just not the most forgiving board if things do not go smoothly out of the box.

Where to Buy

eBay
ASRock Z390 Phantom Gaming 4 Motherboard
In stock $100.00
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ASRock Z390 Phantom Gaming 4 Motherboard
In stock $163.41
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