MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard) vs Gigabyte MZ31-AR0
Both are single-socket SP3 E-ATX server boards from Gigabyte with 16 DIMM slots, so the choice comes down to platform generation and price. The MZ32-AR0 is the EPYC 7002-era board at $764.05 at anafrashop.com as of November 3, 2026; the MZ31-AR0 is listed for EPYC 7003 at $797.25 at TeciSoft as of November 3, 2026. Buy the MZ32-AR0 for a cheaper 7002 build; buy the MZ31-AR0 only if you specifically need its 7003 support and 10GbE ports.
Today the MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard) costs $33.20 less at its best price.
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MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard)
Choose the MZ32-AR0 if you want the lower price and an EPYC 7002 platform with 16 DIMM slots for a data center or HPC build.
- Lowest new price of the pair at $764.05
- EPYC 7002 support with 16 DIMM slots for high capacity
- Sold new at more stores, which helps price competition
- Gigabyte server board with robust power delivery claims
What separates them
| MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard) | Gigabyte MZ31-AR0 | |
|---|---|---|
| CPU generation | EPYC 7002 series | EPYC 7003 series |
| Price (new, November 3, 2026) | $764.05 at anafrashop.com | $797.25 at TeciSoft |
| Stores pricing it new | 4 stores | 3 stores |
| DIMM slots | 16 DDR4 | 16 DDR4 |
| Onboard 10GbE | Not listed | 2x SFP+ 10Gb/s via Broadcom BCM57810S |
| Storage connectors | Not listed | 4x SlimSAS 4i for SATA, 1x M.2 PCIe Gen3 x4 |
| PCIe slots | Not listed | 7x PCIe Gen3 x16/x8 |
Price history
- MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard): lowest $764.05 on Nov 3 at anafrashop.com.
- Gigabyte MZ31-AR0: lowest $1,160.36 on Nov 3 at Orange Hardwares.
Prices at every store
MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard)
- Orange HardwaresNew
In stockReturn policy
$1,506.43Observed Nov 3, 2026, 8:06 AM - E Tech DevicesNew
In stockReturn policy
$1,585.72Observed Nov 3, 2026, 8:06 AM - anafrashop.comNew
Availability unknown
$764.05+ $63.00 shippingObserved Nov 3, 2026, 8:06 AM - AmazonNew
Availability unknown
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$1,035.93+ $3.39 shippingObserved Nov 3, 2026, 8:06 AM
Gigabyte MZ31-AR0
- TeciSoftNew
In stockReturn policy
$797.25Observed Nov 3, 2026, 8:06 AM - AeonflyNew
In stockReturn policy
$963.30Observed Nov 3, 2026, 8:09 AM - Orange HardwaresNew
In stockReturn policy
$1,160.36Observed Nov 3, 2026, 8:06 AM - eBayPre-owned
Availability unknown
$500.00Free shippingObserved Nov 3, 2026, 8:06 AM
Also available at
- Orange HardwaresCheck price at Orange Hardwares
- aloinfousa.comCheck price at aloinfousa.com
- E Tech DevicesCheck price at E Tech Devices
Specs compared
| Spec | MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard) | Gigabyte MZ31-AR0 |
|---|---|---|
| CPU support | — | Single AMD EPYC™ 7003 Series processors |
| Memory slots | — | 16 x DIMMs |
| Memory channels | — | 8-Channel DDR4 RDIMM/LRDIMM per CPU |
| LAN ports | — | 2 x SFP+ 10 Gb/s LAN ports via Broadcom® BCM578… |
| SlimSAS connectors | — | 4 x SlimSAS 4i connectors supporting SATA |
| M.2 slot | — | 1 x M.2 slot with PCIe Gen3 x4 |
| PCIe slots | — | 7 x PCIe Gen3 x16 and x8 slots |
| Form factor | — | E-ATX UP |
| Max memory capacity | — | Up to 2 TB Memory Capacity (1DPC) |
| Max memory speed |
What reviewers say
MZ32-AR0 Gigabyte Socket SP3 System on Chip Chipset EATX System Board (Motherboard)
Owner reports on this board are mostly from home lab and small deployment users. They praise the memory capacity and stable operation under sustained load, and note that setup is straightforward with EPYC 7002 chips. Complaints center on documentation and the bulk packaging.
- Runs 16 DIMMs reliably at rated speeds with matched kits
- Stable under long continuous workloads
- Good PCIe 4.0 lane availability for NVMe and GPUs
- Clear BIOS options for memory and power settings
- Sparse documentation compared with retail boards
- Bulk packaging means no accessories in the box
- BIOS updates can be fussy with some EPYC steppings
- Needs good chassis airflow; VRM area runs warm
Gigabyte MZ31-AR0
Questions and answers
- Which is better for an EPYC 7003 build?
- The MZ31-AR0, since its listing states EPYC 7003 support. The MZ32-AR0 is listed for EPYC 7002 only.
- Is the MZ31-AR0 worth the extra $33?
- Yes if you need onboard dual 10GbE, SlimSAS SATA and 7003 CPUs. If you are building on 7002, the MZ32-AR0 saves money.
- Which has more memory capacity?
- Both have 16 DDR4 DIMM slots. The MZ31-AR0 listing claims up to 2 TB at 1DPC but also says 64GB, so confirm the real limit before buying.
- Do either have built-in 10GbE?
- Only the MZ31-AR0 lists it: two SFP+ 10Gb/s ports via a Broadcom BCM57810S. The MZ32-AR0 listing shows no onboard LAN.
- Which is more reliable?
- No failure data exists for either. MZ31-AR0 reviewers report one board failure and poor documentation alongside praise, so budget for a spare and read the manual carefully.
- What form factor case do they need?
- Both are E-ATX server boards, so you need an E-ATX or larger chassis with SP3 cooling and server-grade airflow.