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Black rectangular E-ATX motherboard with silver heatsinks and red accents

MSI

MSI X99S Gaming 9 ACK LGA 2011-3 Intel X99 DDR4 128GB E-ATX Motherboard

SKU CH-FP3P-FBXQX

Supports LGA 2011-3 Intel Core i7 CPUs, four-channel DDR4 up to 128 GB, five PCIe 3.0 x16 slots, 8 SATA III ports, 7.1 audio via Realtek ALC1150, Killer E2205 Gigabit LAN and six USB 3.0 ports

  • CPU Socket TypeLGA 2011-3
  • CPU TypeIntel Core ™ i7 processors with new LGA 2011-3 slots
  • ChipsetIntel X99
  • Memory StandardSupports four-channel DDR4 2133/2200 (OC)/2400 (OC)/2600 (OC
  • Maximum Memory Supported128GB
  • PCI Slots5 PCIe 3.0 x16 slots, supporting 4-way mode - 1-way mode: x1
  • Supports up to 128GB DDR4 memory for heavy workloads
  • Four-channel DDR4 up to 3333 MHz OC for fast data rates
  • Five PCIe 3.0 x16 slots enable 4-way multi-GPU setups
  • Killer E2205 Gigabit LAN reduces network latency in games
  • Realtek ALC1150 delivers 7.1 channel high-definition audio

Built for LGA 2011-3 Intel Core i7

The MSI X99S Gaming 9 ACK uses the Intel X99 chipset to support LGA 2011-3 Intel Core i7 processors. It targets enthusiasts who need four-channel DDR4 memory and multi-GPU expansion on an E-ATX platform. The board delivers up to 128 GB of system memory across eight DIMM slots. Five PCIe 3.0 x16 slots enable four-way graphics configurations.

Included back-panel and cables

A chassis I/O back panel, one SATA cable and a CMOS battery ship with the motherboard. These items let you complete the external connections and retain BIOS settings without hunting for spares. No Wi-Fi antenna is supplied because the board lacks an onboard Wi-Fi module. The bundle keeps the build moving with only the essentials.

Memory headroom and storage limits

Four-channel DDR4 scales from 2133 MHz to 3333 MHz overclocked, topping out at 128 GB for heavy workloads. Eight SATA III ports plus one SATA Express and one M.2 interface at 10 Gb/s provide plenty of drive bandwidth. The Killer E2205 Gigabit LAN and Realtek ALC1150 7.1 audio handle networking and sound without extra cards. USB 3.0 and 2.0 headers cover front-panel and rear I/O needs.

商品特色

  • Supports up to 128GB DDR4 memory for heavy workloads
  • Four-channel DDR4 up to 3333 MHz OC for fast data rates
  • Five PCIe 3.0 x16 slots enable 4-way multi-GPU setups
  • Killer E2205 Gigabit LAN reduces network latency in games
  • Realtek ALC1150 delivers 7.1 channel high-definition audio

商品規格

BrandMSI
SeriesMSI X99S GAMING 9 ACK
ModelMSI X99S GAMING 9 ACK
CPU Socket TypeLGA 2011-3
CPU TypeIntel Core ™ i7 processors with new LGA 2011-3 slots
ChipsetIntel X99
Memory StandardSupports four-channel DDR4 2133/2200 (OC)/2400 (OC)/2600 (OC)/2666 (OC)/2750 (OC)/3000 (OC)/3110 (OC)/3333 (OC) MHz memory
Maximum Memory Supported128GB
PCI Slots5 PCIe 3.0 x16 slots, supporting 4-way mode
- 1-way mode: x16/x0/x0/x0/x0
- 2-way mode: x16/x0/x0/x16/x0 *, 16/x0/x0/x8/x0 **
- 3-way mode: x16/x0/x0/x16/x8 *, x8/x8/x0/x8/x0 **
4-Way mode: x8/x8/x0/x16/x8 *, x8/x8/x0/x8/x4 **
* Limited to CPUs that support 40 PCIe channel specifications.
Limited to CPUs that support 28 PCIe channel specifications.
SATA RAID8XSATA III interface; 1xSATA Express interface; 1xM.2 interface (10Gb/s)
Audio ChipsetRealtek ALC1150 decoding chip
- 7.1 channel high-quality sound effects
- Supports S/PDIF output
LAN Chipset1 Killer E2205 Gigabit network interface card *
Onboard USBIntel X99 Express Chipset
- 6 USB 3.0 ports (2 on the back panel, 4 supported through built-in USB 3.0 connectors *)
- 6 USB 2.0 ports (2 on the back panel, 4 supported through built-in USB 2.0 connectors)
AsMedia ASM1142
- 2 USB 3.1 ports located on the back panel
VIA VL805
- 4 USB 3.0 ports located on the back panel
Built-in JUSB3 interface supports MSI Super Charger.

商品問答

How often will the included CMOS battery need replacement on the MSI X99S Gaming 9 ACK?

The board ships with a CMOS battery; typical life is several years, replace it when the system clock drifts or BIOS settings reset after power loss.

What limits sustained multi-GPU performance across the five PCIe 3.0 x16 slots?

Bandwidth is shared by the Intel X99 chipset and CPU lanes; in four-way mode each slot runs at x8/x8/x0/x16/x8, so total throughput caps at the CPU's lane budget.

How much heat and noise should I expect from the Realtek ALC1150 audio and Killer E2205 LAN during all-day operation?

Both controllers are low-power; they add negligible heat and produce no audible noise, so system thermals and acoustics depend almost entirely on the CPU and GPU coolers.

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