The Apple 661-3143 (661-3143 - Apple 1.8GHz CPU Processor for Power Mac G5 A1047) is a Processor Boards component engineered for sustained enterprise-class workloads. This part addresses common procurement scenarios where exact-match replacement, capacity expansion, or new-build deployment is required. Technical specifications include clock speed of 1.8 GHz, generation of Gen5. Typical use cases include data-center server fleet refresh, replacement of dead-on-arrival CPUs under existing service contracts, second-socket population on partially-populated dual-socket boards, and lab/test rebuild programs. Pro Disk Network supplies the 661-3143 to US business buyers. Stocked units ship same-day on in-stock orders placed before 3pm ET. Pro Disk Network applies a 90-day functional warranty. Free US ground shipping on orders over $150; same-day expedited (UPS Next Day Air, FedEx Priority) available at checkout.
The 661-3143 is a Apple processor boards component with clock speed 1.8 GHz, generation Gen5. Pro Disk Network sells the 661-3143 for $1,440.70 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 661-3143 are shown on this page.
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US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Confirm the socket against your motherboard's CPU support list - Intel Xeon Scalable spans LGA 3647 (1st/2nd gen), LGA 4189 (3rd gen Ice Lake), and LGA 4677 (4th/5th gen Sapphire/Emerald Rapids). A BIOS update is often required for newer steppings even on the same socket. Email sales@prodisknetwork.com with your motherboard model for a compatibility check.
How fast does the 661-3143 ship?
Pro Disk Network dispatches the 661-3143 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The 661-3143 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Citrix VDI Pool — Frequency-sensitive — prefer high-clock 16–18 core SKUs over high-core-count parts to maintain user-perceived snappiness.
Kubernetes / Tanzu Workers — Higher core count amortises better across many small Pods. EVC mode planning matters for live-migrate parity.
AI Inference Host — Sapphire Rapids and Emerald Rapids include AMX silicon for INT8 inference acceleration — meaningful uplift for BERT, ResNet, and LLM serving.
What is the 661-3143?
The 661-3143 is a Apple server-class processor with clock speed 1.8 GHz and generation Gen5, manufactured by Apple. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of 661-3143
Pros
Lower cost than the manufacturer channel for refresh cycles
Matched-pair option for dual-socket consistency
Sequential serial numbers on bulk orders for cluster builds
Cons
Older socket family — confirm motherboard compatibility
BIOS update typically required for newer CPU steppings
Not a fit for desktop platforms — these are server SKUs
Frequently Asked Questions about 661-3143
Is the 661-3143 a genuine Apple part?
Yes. Pro Disk Network sources every 661-3143 as factory-original Apple inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Apple servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
What socket does the 661-3143 use?
Confirm the socket against your motherboard's CPU support list - Intel Xeon Scalable spans LGA 3647 (1st/2nd gen), LGA 4189 (3rd gen Ice Lake), and LGA 4677 (4th/5th gen Sapphire/Emerald Rapids). A BIOS update is often required for newer steppings even on the same socket. Email sales@prodisknetwork.com with your motherboard model for a compatibility check.
How fast does the 661-3143 ship?
Pro Disk Network dispatches the 661-3143 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the 661-3143?
New 661-3143 units carry the full Apple manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 661-3143?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 661 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
661-3136 — 661-3136 - Apple 160GB 7200RPM SATA 1.5Gb/s 3.5-inch Hard Drive — $468.96
661-3148 — 661-3148 - Apple 250GB 7200RPM SATA 3Gb/s 3.5-inch Hard Drive — $722.14
661-3149 — 661-3149 - Apple 80GB 7200RPM SATA 3.5-inch Hard Drive with Carrier for Xserve A1068 — $431.42
661-3150 — 661-3150 - Apple 24X CD-ROM Drive for Xserve G5 — $230.55
661-3151 — 661-3151 - Apple 24X CD-RW / DVD Combo Drive for Xserve G5 — $374.89
661-3152 — 661-3152 - Apple 2.00GHz Processor with Heatsink for Xserve G5 — $597.24
661-3153 — 661-3153 - Apple Logic Board (Motherboard) for Xserve G5 A1068 — $1,734.01
661-3154 — 661-3154 - Apple 512MB DDR-400MHz PC3200 ECC Unbuffered CL3 184-Pin DIMM Memory Module for Xserve A1068 — $130.75
661-3155 — 661-3155 - Apple 400 Watts Power Supply for Xserve G5 — $480.21
661-3164 — 661-3164 - Apple 2.5GHz CPU Logic Board (Motherboard) for Power Mac G5 A1047 — $3,521.53
661-3170 — 661-3170 - Apple 256MB DDR-400MHz PC3200 ECC Unbuffered CL3 184-Pin DIMM Memory Module for Xserve A1068 — $124.87
661-3171 — 661-3171 - Apple 1GB DDR-400MHz PC3200 ECC Unbuffered CL3 184-Pin DIMM Memory Module for Xserve A1068 — $310.67
Pro Disk Network Buyer’s Guide: Processor Boards
Socket Compatibility, EVC Mode, and BIOS Revision Planning
For Hyper-V clusters, Live Migration compatibility is more forgiving but still benefits from matched CPU stepping across cluster nodes. For Kubernetes / Tanzu, CPU heterogeneity is acceptable because pods are stateless, but resource-request planning becomes harder when nodes have different core counts.
AI Workloads, AMX, and the Inference Performance Story
Late-generation Intel Xeon processors (Sapphire Rapids, Emerald Rapids, Granite Rapids) include AMX (Advanced Matrix Extensions) silicon that accelerates INT8 inference workloads dramatically. For the 661-3143, if AMX is present, BERT-base inference throughput improves 4-6× over the previous generation; LLM inference (Llama 2 7B INT8 quantised) improves 2-3×. AMX does not require code changes when used through libraries that already support it (oneAPI, ONNX Runtime, OpenVINO).