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Suitable for R420 320 AC550E-S0 550W power supply
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  • $119.73 
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  • $116.93 - $119.73
Suitable for 400-70PFL ATX IPC power supply 400W
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  • $383.31 
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DELL 0Cy119  1570 Watt Redundant Power Supply For Powredge R900
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  • $34.99 
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For PowerEdge R320 R420 R520 CPU Processor Heatsink
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  • $94.37 
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DPS-1400EB A 54Y8978 1400W for Lenovo workstation P920 server power supply
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  • $348.30 
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For ETASIS EFRP-400 400W Server Redundant Power Supply
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  • $180.30 
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For 3Y YM-2281A 285W Server Redundant Power Module
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350W Server Power Supply PSU For PowerEdge R320 R330 R420 R420XR Y8Y65 / P7GV4 / 9WR03
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  • $136.55 
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Dell PowerEdge 9TMRF Y26KX CMPGM PR21C Server Power Supply 1100W
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  • $83.99 
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For Cisco YM-2451C 3Y Server Power Supply 450W
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  • $208.30 
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350W Server Power Supply PSU For PowerEdge R320 R330 R420 R420XR Y8Y65 / P7GV4 / 9WR03
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  • $177.99 
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RYMG6 Dell PowerEdge R420 550W 80 Plus Platinum Hot Swap Power Supply 0RYMG6
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DELL
Refurbished RYMG6 Dell PowerEdge R420 550W 80 Plus Platinum Hot Swap Power Supply 0RYMG6
  • Part Number: RYMG6
  • Type: Redundant Power Supply
  • Input Voltage: 100 - 240 V
  • Input Frequency Range: 50/60 Hz
  • Model #: RYMG6-REF
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  • $33.00 
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PSU For Supermicro 1U 420W Switching Power Supply SP423-1S PWS-0053
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  • $180.30 
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For Juniper IDP 800 PWS-401-1R 400W Device Power Supply
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  • $418.30 
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For IBM X345 server power cage 514W 74P4415 74P4416
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  • $180.30 
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For TC SURE STAR 400W SS-400R8P Power Supply R8P-400 1+1
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  • $823.99 
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For DELL 2000W D2000E-S2 server epp power supply 0XYK93 R840 R940 C4130 R740XD T640
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  • $222.30 
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SuperMicro PWS-1K41F-1R 1400W 1U Server Power Supply 80Plus Gold Front Loaded
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SuperMicro PWS-1K41F-1R 1400W 1U Server Power Supply 80Plus Gold Front Loaded
  • Type: Consumer Electronics
  • Main Connector: 24Pin
  • Output Current: +12V@92/116A, +5VSB@6A
  • Dimensions: 12.83" x 4.09" x 1.57"
  • Model #: PWS-1K41F-1R
  • $242.00
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  • $99.99 
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SuperMicro PWS-741P-1R 740W Server Power Supply
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Supermicro
SuperMicro PWS-741P-1R 740W Server Power Supply
  • Output: [email protected], 5V Standby@4A
  • Dimensions: 2.99" x 1.57" x 14.17"
  • Weight: 2.2 lbs.
  • Model #: PWS-741P-1R
DELL Y8Y65 350 Watt Redundant Power Supply For Poweredge R320 R420.
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DELL
Refurbished DELL Y8Y65 350 Watt Redundant Power Supply For Poweredge R320 R420.
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: Y8Y65-SS-282745
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  • $79.99 
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Dell 550W Redundant Power Supply for PowerEdge R320 R420 Server PN: 1J45G RYMG6 M95X4
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  • $149.99 
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Dell 350W Redundant Power Supply for PowerEdge R320 R420 Server PN: Y8Y65 9WR03 P7GV4
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  • $139.99 
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450W Server PSU 450W Redundant Hot-Swap Power Supply YM-2451CJR  YM-2451C SSI Power R512 G2 Power
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  • $132.11 
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  Buying an AMD EPYC 4005

Understanding the AMD EPYC 4005

The AMD EPYC 4005 is part of AMD’s EPYC 4000 series, designed for entry-level servers and edge applications. Built on a 7 nm process, the EPYC 4005 features 8 cores and 16 threads, with a base clock of 2.0 GHz and a maximum boost of 3.0 GHz. Its single-socket design offers up to 64 lanes of PCIe 4.0 connectivity, enabling high-bandwidth networking and storage options. With a 120 W TDP, this processor balances performance and power efficiency for tasks such as virtualization, web hosting, and lightweight database workloads.

Key technical details include 64 MB of L3 cache, DDR4-3200 support in dual-channel mode (up to 3200 MT/s), and integrated Infinity Fabric for coherent memory access across chiplets. When selecting a compatible motherboard, look for server boards with SP3 sockets, support for ECC memory, and robust VRM designs to ensure stability under sustained loads. Popular board partners include Supermicro , ASRock , which offer a range of options for 1U, 2U, and tower chassis.

Before purchasing, verify compatibility with your chassis—many EPYC 4005 motherboards require specific rear I/O layouts and cooling profiles. Standard air-cooled heatsinks supporting SP3 sockets are widely available. If you plan to deploy the EPYC 4005 in a dense rack , consider passive heatsink solutions with direct-to-chassis airflow.

For current listings, visit Newegg’s AMD EPYC 4005 category. Filter by seller ratings and review counts to find models with reliable shipping and support. Once you receive your shipment, follow the manufacturer’s installation guide to seat the CPU , install compatible ECC DDR4 DIMMs, and configure the BIOS.

Getting the Most Out of Your EPYC 4005

After installing the EPYC 4005, update your BIOS/UEFI to the latest version provided by the motherboard manufacturer. This ensures full support for memory speed and power management features. Enable “Secure Boot” and verify that your operating system—whether it’s a Linux distribution or Windows Server—recognizes the processor and all installed memory. For Linux deployments, confirm that you’re using a kernel version that supports EPYC 4000-series optimizations.

To optimize performance, configure BIOS settings for NUMA mode and PCIe bifurcation if you’re using NVMe RAID or high-port network adapters. Adjust power profiles to “Performance” for maximum throughput in virtualization or database tasks. Monitor core temperatures with IPMI utilities or motherboard-provided software; if you notice sustained high temperatures, improve chassis airflow or switch to higher-capacity fans.

FAQs about the AMD EPYC 4005

  • What socket does the EPYC 4005 require?

    The AMD EPYC 4005 requires an SP3 socket on a compatible server motherboard. Look for boards explicitly listing EPYC 4000-series support
  • What is the memory support for the EPYC 4005?

    The EPYC 4005 supports dual-channel DDR4-3200 memory with ECC. Up to 128 GB (64 GB × 2) is typical for a single-socket configuration. Refer to your motherboard’s QVL (Qualified Vendor List) for validated DIMM part numbers.
  • How does the EPYC 4005 compare to other EPYC CPUs?

    The EPYC 4005 is an entry-level SKU with 8 cores and 16 threads, making it ideal for light-to-medium workloads. Higher-end EPYC CPUs in the 7002 and 7003 series offer more cores (up to 64 cores) and greater memory channels (8-channel), but at a higher price point and power consumption.
  • What power supply is recommended for an EPYC 4005 system?

    A quality 550 W–650 W redundant or single-rail server power supply is recommended. Ensure the PSU has enough connectors for drives and expansion cards. Check your chassis and motherboard documentation for exact power requirements.