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ATX motherboard with massive heatsinks, integrated I/O cover, ROG Memory Fan and DIMM.2 card installed

ASUS

ASUS ROG Crosshair X870E Apex + Ryzen 7 9700X AMD motherboard combo

SKU CH-8J7G-W3ZAN

An AM5 motherboard with 18+2+2 power stages, two DDR5 slots supporting 128 GB, three PCIe 5.0 M.2 slots, Wi-Fi 7 and 5 Gb Ethernet, bundled with a Ryzen 7 9700X processor

  • CPU Socket TypeAM5
  • CPU TypeAMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desk
  • ChipsetAMD X870E
  • Number of Memory Slots2x288pin (DDR5)
  • Memory Standard2 x DIMM slots, max. 128GB, DDR5 Supports up to 8200+MT/s(OC
  • Maximum Memory Supported128GB

model ROG CROSSHAIR X870E APEX

+CPU +Ryzen 7 9700X

  • 18+2+2 power stages with 110A and 80A ratings for stable high-current delivery
  • DDR5 memory overclocking up to 9600 MT/s enabled by dedicated ROG Memory Fan
  • Three PCIe 5.0 M.2 slots plus two PCIe 4.0 M.2 slots on ROG DIMM.2 card
  • Wi-Fi 7 with 320MHz bandwidth for up to 6.5Gbps wireless throughput
  • AI Overclocking, AI Cooling II and AI Networking II simplify tuning and optimise performance

Combo purpose

This bundle pairs the ROG Crosshair X870E Apex motherboard with a Ryzen 7 9700X processor, delivering an AM5 platform ready for 9000, 8000 and 7000 series CPUs. It targets enthusiasts who want a single SKU for high-frequency DDR5 memory and multi-GPU PCIe 5.0 layouts.

Build integration

The board fits standard ATX chassis and requires two 288-pin DDR5 modules for up to 128 GB capacity. It provides two PCIe 5.0 x16 slots with Q-Release Slim, three onboard PCIe 5.0 M.2 slots plus two PCIe 4.0 M.2 slots on the included DIMM.2 card, four SATA 6Gb/s ports, 5 Gb Ethernet, Wi-Fi 7 and USB4 connectivity.

Bundled extras

The ROG Memory Fan kit mounts directly to the DIMM area to sustain memory clocks beyond 9600 MT/s. The DIMM.2 card adds two additional M.2 slots with dedicated cooling, while AI Overclocking, AI Cooling II and AI Networking II firmware automates voltage, fan curves and traffic prioritisation without manual tuning.

Points forts

  • 18+2+2 power stages with 110A and 80A ratings for stable high-current delivery
  • DDR5 memory overclocking up to 9600 MT/s enabled by dedicated ROG Memory Fan
  • Three PCIe 5.0 M.2 slots plus two PCIe 4.0 M.2 slots on ROG DIMM.2 card
  • Wi-Fi 7 with 320MHz bandwidth for up to 6.5Gbps wireless throughput
  • AI Overclocking, AI Cooling II and AI Networking II simplify tuning and optimise performance

Caractéristiques

BrandASUS
SeriesROG
ModelROG CROSSHAIR X870E APEX +(R7 9700X)
Part NumberROG CROSSHAIR X870E APEX +(R7 9700X)
CPU Socket TypeAM5
CPU TypeAMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
* Refer to https://www.asus.com/support/download-center/ for CPU support list.
ChipsetAMD X870E
Number of Memory Slots2x288pin (DDR5)
Memory Standard2 x DIMM slots, max. 128GB, DDR5
Supports up to
8200+MT/s(OC) with Ryzen™ 9000 Series Processors,
9600+MT/s(OC) with Ryzen™ 8000 Series Processors
8000+MT/s(OC) with Ryzen™ 7000 Series Processors,
ECC and Non-ECC, Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information sit
Maximum Memory Supported128GB
ECC SupportedNon-ECC
PCI Express 5.0 x16AMD Ryzen™ 9000 & 7000 Series Desktop Processors*
2 x PCIe 5.0 x16 slots with Q-Release Slim (supports x16 or x8/x8** or x8/x4/x4 modes***)
** When you use both PCIEX16_1 and PCIEX16_2, PCIEX16_1 and PCIEX16_2 will run x8.
***When M.2_3 are enabled, PCIEX16_1 will run x8, and PCIEX16_2 will run x4.
**** When M.2_2 and M.2_3 are enabled simultaneously, PCIEX16_2 will be disabled.
PCI Express 4.0 x16AMD Ryzen™ 8700 & 8600 & 8400 Series Desktop Processors*
2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x8, PCIEx16_2 will be disabled)
AMD Ryzen™ 8500 & 8300 Series Desktop Processors*
2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x4, PCIEx16_2 will be disabled)
AMD X870E Chipset
1 x PCIe 4.0 x4 slot
1 x PCIe 3.0 x1 slot
* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).
- To ensure compatibility of the device installed, please refer to https
Serial ATA (SATA)4 x SATA 6Gb/s
M.2Supports 5 x M.2 slots and 4 x SATA 6Gb/s ports*
AMD Ryzen™ 9000 & 7000 Series Desktop Processors***
M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
AMD Ryzen™ 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (Not supports)
M.2_3 slot (Key M), type 2242/2260/2280 (Not supports)
AMD X870E Chipset
DIMM.2_1 slot (Key M), type 2230/2242/2260/2280
SATA RAID0/1/5/10
Audio ChannelsROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080*
- Impedance sense for front and rear headphone outputs
- Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking
- High quality 120 dB SNR stereo playback output and 110 dB SNR recording input
- Supports up to 32-Bit/384 kHz playback on front panel
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP
- Gold-plated audio jacks
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
* A chassis with an HD audio module in the front panel is required to support 7.1 Su
Second LAN Chipset1 x Realtek 5Gb Ethernet
ASUS LANGuard
Max LAN Speed5Gbps
Wireless LANWi-Fi 7*
2x2 Wi-Fi 7 (802.11be)
Supports 2.4/5/6GHz frequency band**
Supports Wi-Fi 7 320MHz bandwidth, up to 6.5Gbps transfer rate.
Bluetooth® v5.4***
*Wi-Fi features may vary depending on the operating system
For Windows 11, Wi-Fi 7 will require 24H2 or later version for full functions, Windows 11 21H2/22H2/23H2 only support Wi-Fi 6E.
For Windows 10, please note that no driver is available, refer to the Wi-Fi chipset vendor's website for details.
** Wi-Fi 6GHz frequency band and bandwidth regulatory may vary between countries.
*** The Bluetooth® version may vary, please refer to th
BluetoothYes
Back I/O Ports2 x USB4® (40Gbps) ports (2 x USB Type-C®)
6 x USB 10Gbps ports (5 x Type-A + 1 x USB Type-C®)
2 x USB 5Gbps ports (2 x Type-A)
1 x Wi-Fi module
1 x Realtek 5Gb Ethernet port
1 x PS/2 keyboard/mouse combo port
2 x Gold-plated audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack™ button
1 x Clear CMOS button
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
2 x 4-pin Chassis Fan headers
2 x 4-pin Full Speed Fan headers
1 x W_PUMP+ header
1 x Extra Flow Fan header
Power Related
1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connectors
1 x 8-pin PCIe Power connector
Storage Related
3 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB
2 x USB 20Gbps connectors (support USB Type-C® )
2 x USB 5Gbps headers support 4 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Miscellaneous
1 x 80 Light Bar jumper
3
Form FactorATX
Dimensions (W x L)12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
Windows 11Supported

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Questions sur cet article

How many 110 A power stages feed the CPU VRM before thermal throttling becomes the limiting factor?

The board uses 18+2+2 stages with 110 A units for the 18 Vcore and 2 VSoC phases, so sustained load is capped by the cooling capacity of the massive heatsink and heatpipe assembly.

What acoustic and thermal load should I expect from the VRM and chipset when the system runs 24/7?

Massive heatsinks with integrated I/O cover, high-conductivity thermal pads and a connecting heatpipe dissipate VRM and chipset heat passively, while the ROG Memory Fan kit adds active airflow over the DIMMs during extended sessions.

Which DDR5 memory kit speeds are validated for the included Ryzen 7 9700X without additional hardware?

The platform supports up to 8200+ MT/s with Ryzen 9000 series CPUs, and the bundled ROG Memory Fan kit is designed to help reach those frequencies on the two 288-pin DIMM slots.

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