GIGABYTE AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard GA-990FXA-UD3 R5

Name: GIGABYTE AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard GA-990FXA-UD3 R5
Brand: Unbranded
SKU: B00ZYK7I8I

Status: GIGABYTE AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX…: Unavailable on Amazon as of 2026-10-07 04:25 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The GIGABYTE AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard R5: Two PCIe x16 slots both running at x16 for CrossFireX or SLI dual-GPU setups; main trade-off: dead-end socket: AM3+/AM3 only, no upgrade path past the FX line.

Unavailable on Amazon as of 2026-10-07 04:25 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: GIGABYTE B460M DS3H V2 — $185.23 on Amazon as of 2026-10-07 04:12 UTC (price may vary).

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Similar: Micro Center AMD 5500 Processor with GIGABYTE… — $229.99 on Amazon as of 2026-10-07 04:12 UTC (price may vary).

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Similar: GIGABYTE Z490 AORUS Elite — $385.00 on Amazon as of 2026-10-07 04:18 UTC (price may vary).

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Original listing (currently unavailable) → Compare to similar motherboards

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ Two PCIe x16 slots both running at x16 for CrossFireX or SLI dual-GPU setups
✓ 8+2 phase VRM built for high-TDP AM3+ FX chips like the FX-8350 and FX-9590
✓ Realtek ALC1150 codec, a step above the ALC892 on most 990FX boards

Cons

✗ Dead-end socket: AM3+/AM3 only, no upgrade path past the FX line
✗ DDR3 1.5V only, capped at 32GB across 4 DIMMs
✗ PCIe 2.0 lanes bottleneck modern x16 GPUs versus PCIe 4.0 boards
✗ No onboard M.2, so NVMe boot needs a PCIe adapter and BIOS workarounds

Manufacturer description

Supports newest AMD AM3+ FX/AM3 Phenom II series processors, Advanced 8+2 phase CPU VRM power design for AMD high-TDP CPU support,3 PCI-E 2.0 interfaces for 2way AMD CrossFireX and SLI multi-graphics support, AMD SB950 provides 6 native SATA3 ports with superfast 6Gbps link speed and RAID 0, 1, 5, 10 support, Supports USB 3.0 with superfast transfer rates of up to 5 Gbps, GIGABYTE 3x USB Power with On/Off Charge USB ports, Ultra Durable 3 Classic Technology with copper cooled quality for lower working temperature, Turbo XHD technology accelerating hard drive performance with ease, Revolution…

SpecPicks Verdict

SpecPicks scored GIGABYTE AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard R5 using a rating × review-volume × price-fit model applied to published specs and reviews across the motherboards category. Compare with similarly-priced alternatives in the motherboards category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

Storage Interface:6 x SATA 6Gb/s connectors, Support for SATA RAID 0, RAID 1, RAID 5,RAID 10 and JBOD, 2 x eSATA 6Gb/s Support for RAID 0 and RAID 1
Expansion Slots: 2 x PCI Express x16 slot running at x16 ,1x PCI Express x4 slots, 2 x PCI Express x1 slot, 1x PCI slots
Memory: 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory.
CPU: AM3+/AM3/AMD Athlon II Chipsets: AMD 990FX/AMD SB950.
Audio: Realtek ALC1150 codec

Full Specifications

CPU	AM3+/AM3/AMD Athlon II Chipsets: AMD 990FX/AMD SB950.
Audio	Realtek ALC1150 codec
Brand	GIGABYTE
Memory	4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory.
USB 2.0	8
Platform	Windows 7, Windows 8
CPU Model	Athlon
CPU Socket	Socket AM3+
Model Name	GA-990FXA-UD3
Unit Count	1 Count
Chipset Type	AMD 990FX/SB950
Connectivity	USB
Model Number	GA-990FXA-UD3 R5
Chipset Family	AMD 990FX
Expansion Slots	2 x PCI Express x16 slot running at x16 ,1x PCI Express x4 slots, 2 x PCI Express x1 slot, 1x PCI slots
Mfr Part Number	GA-990FXA-UD3 R5
Number of Ports	24
Total Usb Ports	13
Processor Socket	Socket AM3+
Total PCIe Ports	5

Ready to buy?

Amazon shows no buyable offer for GIGABYTE AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX… at the last check. A similar in-stock product is GIGABYTE B460M DS3H V2. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $185.23