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ATX motherboard with black PCB and silver heatsinks

ASUS

ASUS M5A99X EVO AMD 990X AM3+ DDR3 32GB ATX Motherboard

SKU CH-PZ5F-RSFR3

ATX motherboard with AMD 990X chipset, Socket AM3+ and DDR3 support up to 32 GB

  • CPU socketSocket AM3+
  • ChipsetAMD 990X
  • Max supported RAM32 GB
  • Supports up to 32 GB DDR3 memory for multitasking headroom
  • AMD 990X chipset delivers native AM3+ platform stability
  • ATX form factor fits standard chassis and expansion layouts
  • Socket AM3+ compatibility covers a wide range of AMD CPUs
  • Includes SATA cable and I/O shield for immediate build readiness

ASUS M5A99X EVO AM3+ Motherboard

The ASUS M5A99X EVO is an ATX motherboard built on the AMD 990X chipset for Socket AM3+ processors. It supports DDR3 memory up to a maximum capacity of 32GB. The board provides a foundation for systems using compatible AMD CPUs and DDR3 modules.

Suits AM3+ builds; not for newer sockets

This motherboard suits builders assembling or repairing systems based on the Socket AM3+ platform and AMD 990X chipset. It is not compatible with newer CPU sockets or different memory generations. Users requiring current platform features should select a different motherboard.

AMD 990X chipset defines platform

The AMD 990X chipset determines the supported processor interface and feature set for this board. It establishes the Socket AM3+ compatibility and the DDR3 memory architecture. Verify that your CPU and memory match this chipset before purchasing.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $92.99
Cheaper than about 78% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product lineASUS M5A99X EVO
Model nameASUS M5A99X EVO
Processor
CPU socketSocket AM3+
ChipsetAMD 990X
Memory
Max supported RAM32 GB

Questions about this item

How do I install the board in my case and what step is often missed?

Mount the ATX board using all nine standoffs, connect the 24-pin and 4-pin power headers, then attach the supplied I/O back panel before securing the board — skipping the back panel is the common oversight.

What maintenance or replacement will this motherboard need later?

The included CMOS battery will eventually lose charge; when the system forgets BIOS settings or the clock resets, replace it with a new button cell.

What limit appears first under sustained heavy load?

The AMD 990X chipset and DDR3 memory topology cap usable RAM at 32 GB, so memory capacity is the first ceiling you hit in prolonged multi-tasking workloads.

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