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Genuine Dell Intel 945G Express Socket 775 Motherboard For Optiplex GX520 Desktop Systems Part Numbers: RJ291
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Genuine Dell Intel 945G Express Socket 775 Motherboard For Optiplex GX520 Desktop Systems Part Numbers: RJ291

By , Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

$146.00

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*Price sourced from Amazon.com. Price and availability subject to change.

Bottom line: The Genuine Dell Intel 945G Express Socket 775 Motherboard For Optiplex GX520 Desktop Systems Part Numbers: RJ291 is a niche pick — read recent reviews before buying in the retro motherboards category, priced around $146.00. Compare close alternatives before committing.

Genuine Dell Motherboard For Optiplex GX520 Desktop Systems. This is for motherboard ONLY, and does not include processor, memory, heatsinks, or heatsink retainers. Motherboard Information: Chipset: Intel 945G Express; Processor: Socket 775, Intel Smithfield Pentium D, Intel Prescott Pentium 4, Intel Celeron; Memory: 2x 400/533 MHz DDR2 SDRAM, 4 GB Max Total; Audio: Integrated 2.1 AC'97 Sound; Video: Integrated Intel GMA 950; Expansion Capabilities: 1x PCI 32bit, 1x PCI 32/64bit; Peripheral Interfaces: 1x SATA Connector, 1x VGA Monitor Connector, 1x Serial Connector, 1x Parallel Connector…

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SpecPicks Verdict

SpecPicks scored Genuine Dell Intel 945G Express Socket 775 Motherboard For Optiplex… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the retro motherboards category. Dell's retro motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for retro 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Genuine Dell Motherboard For Optiplex GX520 Desktop Systems
  • ✓ Backed by Dell's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • Genuine Dell Motherboard For Optiplex GX520 Desktop Systems
  • Chipset: Intel 945G Express; Processor: Socket 775, Intel Smithfield Pentium D, Intel Prescott Pentium 4, Intel Celeron; Memory: 2x 400/533 MHz DDR2 SDRAM, 4 GB Max Total
  • Audio: Integrated 2.1 AC'97 Sound; Video: Integrated Intel GMA 950
  • Expansion Capabilities: 1x PCI 32bit, 1x PCI 32/64bit
  • Peripheral Interfaces: 1x SATA Connector, 1x VGA Monitor Connector, 1x Serial Connector, 1x Parallel Connector, 1x RJ45 Ethernet/LAN Port, 6x back-panel USB 2.0–compliant connectors, 3x back panel audio connectors

Full Specifications

AudioIntegrated 2.1 AC'97 Sound; Video: Integrated Intel GMA 950
BrandDell
Weight945g
ConnectivityUSB
Expansion Capabilities1x PCI 32bit, 1x PCI 32/64bit

Ready to buy?

Genuine Dell Intel 945G Express Socket 775 Motherboard For Optiplex GX520 Desktop Systems Part Numbers: RJ291 is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Price and availability subject to change.

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Genuine Dell Intel 945G Express Socket 775 Motherboard For Optiplex GX520 Desktop Systems Part Numbers: RJ291
$146.00
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