AMD OSY2224GAA6CX Dual-Core Socket F Server Processor

Overview

The AMD OSY2224GAA6CX is an Opteron 2224 SE dual-core processor running at 3.2GHz, built for Socket F (940-pin) server platforms that need a drop-in replacement or upgrade path rather than a full board swap. This is a legacy-generation part — the right call when you're keeping an existing dual-processor or multiprocessor Opteron server running rather than migrating the whole chassis to newer silicon. If you're sourcing OSY2224GAA6CX for a maintenance contract, parts inventory, or a specific end-of-life server refresh, the specs below map directly to what the datasheet documents.

Key Features

• Dual-Core Architecture with Discrete Cache Per Core: Each core gets its own L1 and L2 cache structures rather than sharing a single pool, which keeps one core's workload from starving the other's cache — relevant if you're running mixed database and application processes on the same box.
• 3.2GHz Core Speed: Among the higher clock speeds in the Opteron 2000-series SE lineup, useful when a legacy application is single-thread-latency sensitive and you can't just add cores to fix it.
• 2x1MB (1024-Kbyte) 16-Way Associative ECC-Protected L2 Cache: Exclusive cache architecture, meaning L2 storage is in addition to L1 rather than a copy of it — you get the full 1MB of usable L2 per core, which matters for cache-hungry server workloads like database indexing.
• 64-Kbyte 2-Way Associative ECC-Protected L1 Data Cache: Supports two 64-bit operations per cycle at 3-cycle latency — ECC protection here catches single-bit memory errors before they corrupt in-flight data, a baseline requirement for production server hardware.
• 64-Kbyte 2-Way Associative Parity-Protected L1 Instruction Cache: Paired with advanced branch prediction, this reduces pipeline stalls on branch-heavy code paths common in transactional server applications.
• Integrated 144-bit DDR SDRAM Memory Controller: Runs at 100, 133, 166, or 200 MHz and supports up to eight registered DIMMs — having the memory controller on-die (instead of on a separate northbridge) cuts memory latency, which is the main reason Opteron platforms held an edge in memory-bound workloads during this generation.
• ECC Memory Checking with Double-Bit Detect, Single-Bit Correct: The memory controller catches and corrects single-bit errors automatically and flags double-bit errors instead of silently corrupting data — non-negotiable for any server you can't afford to reboot on a memory glitch.
• Three HyperTransport Links at 2000 MT/s (4.0 GB/s per direction): On multiprocessor (MP) models, any of the three links can connect to I/O devices or to another DP/MP processor, giving you the interconnect bandwidth to build out multi-socket configurations without a separate chipset bottleneck.
• 940-Pin Micro PGA Package, 1.27mm Pin Pitch: A 31x31 row pin array on a 40mm x 40mm ceramic or organic substrate — confirm your motherboard's Socket F pinout and BIOS microcode support before ordering, since Socket F spans several Opteron generations with varying compatibility.
• AMD64 Technology with Backward Compatibility: Full 32-bit code base support (SSE, SSE2, MMX, 3DNow!, legacy x86) alongside AMD64 extensions — eight additional 64-bit integer registers and eight additional 128-bit SSE registers — so existing 32-bit operating systems and drivers run without modification while leaving a 64-bit upgrade path open.
• ACPI-Compliant Power Management: Multiple low-power states plus System Management Mode support processor performance states, which helps manage thermal load in dense multi-socket chassis.
• Machine Check Architecture with Hardware ECC Scrubbing: Automatically scrubs major ECC-protected arrays in the background, catching latent memory errors before they accumulate into an uncorrectable fault.

Integration & Compatibility

OSY2224GAA6CX targets Socket F (940-pin) platforms specifically — it is not interchangeable with 939-pin or Socket AM2 Opteron variants, which use different pinouts and memory controller configurations per the AMD functional datasheets for those packages. On dual-processor (DP) and multiprocessor (MP) board designs, the three HyperTransport links let you connect additional Opteron processors directly rather than routing through a shared bus, which is the architecture that made Opteron a common choice for 2P and 4P server builds in this era. Before ordering, verify your motherboard vendor lists explicit support for the 2224 SE stepping, since Socket F BIOS microcode requirements vary by board revision.

Frequently Asked Questions

Q: What socket does the AMD OSY2224GAA6CX use?

A: Socket F, a 940-pin micro PGA package with a 1.27mm pin pitch and 31x31 row pin array on a 40mm x 40mm substrate.

Q: Is the OSY2224GAA6CX a single-core or dual-core processor?

A: Dual-core, with discrete L1 and L2 cache structures for each core rather than shared cache.

Q: How much memory can the OSY2224GAA6CX address, and what memory speeds does it support?

A: It has an integrated 144-bit DDR SDRAM memory controller supporting up to eight registered DIMMs at 100, 133, 166, or 200 MHz, with ECC double-bit detect and single-bit correct.

Q: Does the OSY2224GAA6CX support 64-bit operating systems?

A: Yes. It implements AMD64 technology with 64-bit integer registers, 48-bit virtual and 40-bit physical addressing, while remaining compatible with existing 32-bit operating systems and drivers.

Q: Can the OSY2224GAA6CX be used in a multi-socket server?

A: On dual-processor and multiprocessor board designs, its three HyperTransport links (2000 MT/s, 4.0 GB/s per direction each) support direct connections to other DP or MP processors as well as I/O devices.

Marty Allison

The OSY2224GAA6CX is a part I still see requests for when a customer needs to keep an existing Socket F Opteron server alive rather than replace the whole chassis. At 3.2GHz dual-core with 2x1MB of exclusive L2 cache per core, it sits toward the top of the 2000-series SE range for raw clock speed.

Technical Highlights:

• 1024-Kbyte ECC-protected L2 cache per core: exclusive architecture means the full 1MB is usable capacity, not a mirror of L1 — matters on database or virtualization workloads that thrash cache.
• Three HyperTransport links at 2000 MT/s (4.0 GB/s each direction): on MP-rated boards, any link can chain to another processor, which is how 4-socket Opteron builds were architected without a separate chipset bottleneck.
• Integrated memory controller with eight registered DIMM support: on-die memory control at up to 200 MHz DDR keeps latency down versus a northbridge-routed design — the main reason these platforms aged well in memory-bound server roles.

Deployment Considerations:

• Confirm Socket F BIOS microcode support on your specific board revision before ordering — Socket F spans multiple Opteron generations and not every board recognizes every stepping.
• This is a 940-pin package exclusively; it will not physically or electrically interchange with 939-pin or Socket AM2 Opteron parts, so double-check your existing chassis's socket type against the datasheet before treating this as a drop-in swap.

Best fit: a shop maintaining a fleet of existing 2P or 4P Socket F Opteron servers past their original refresh cycle, where replacing a failed OSY2224GAA6CX keeps a production box running without a board-level rebuild.