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ATX motherboard in dark finish with silver CPU socket and multiple memory slots

ASUS

ASUS PRIME Z390-P Intel motherboard 128GB DDR4 LGA 1151

SKU CH-57CJ-T0E4D

Intel Z390 ATX motherboard for LGA 1151 CPUs supporting up to 128GB DDR4 memory

  • CPU Socket TypeLGA 1151
  • ChipsetIntel Z390
  • Maximum Memory Supported128GB
  • Supports up to 128GB DDR4 memory capacity
  • Intel Z390 chipset enables overclocking headroom
  • LGA 1151 socket fits compatible 8th and 9th Gen CPUs
  • ATX form factor fits standard full-size cases
  • Includes SATA cable and I/O shield for basic setup

Socket LGA 1151 Z390 ATX motherboard

The ASUS PRIME Z390-P is an Intel motherboard built on the Z390 chipset and the LGA 1151 socket. It supports DDR4 memory up to 128GB in an ATX form factor. The board ships new with a chassis I/O back panel and one SATA cable.

Buyers needing DDR4 on Z390

This board suits builders assembling or repairing a system that requires the Z390 chipset and LGA 1151 socket with high DDR4 capacity. It is not for buyers who need a different socket or chipset, nor for those who require additional accessories beyond the motherboard, back panel and single SATA cable.

128GB maximum DDR4 capacity

The decisive specification is the 128GB maximum memory supported across the DDR4 slots. If the planned build demands more memory than this limit, a different motherboard must be chosen.

Highlights

  • Supports up to 128GB DDR4 memory capacity
  • Intel Z390 chipset enables overclocking headroom
  • LGA 1151 socket fits compatible 8th and 9th Gen CPUs
  • ATX form factor fits standard full-size cases
  • Includes SATA cable and I/O shield for basic setup

Specifications

BrandASUS
ModelASUS PRIME Z390-P
CPU Socket TypeLGA 1151
ChipsetIntel Z390
Maximum Memory Supported128GB

Questions about this item

What memory standard does the Z390 chipset on this board cap at in practice?

The Intel Z390 chipset runs DDR4 up to the board's 128GB limit.

What physical space and power connector does this ATX motherboard need to fit?

An ATX case with matching I/O shield cut-out and a standard 24-pin ATX plus 8-pin CPU power header.

How is the motherboard installed, and which step is most often missed?

Fit the supplied I/O shield, align standoffs, secure screws, then connect the 24-pin and 8-pin power cables — the extra CPU power plug is frequently forgotten.

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