SLBVG - 2.80GHz 6.40GT/s 12MB Cache LGA1366 Intel Xeon X5660 Hexa-Core CPU Processor

Built for Intel Xeon 5600-series platforms, the X5660 is a 6-core / 12-thread server processor designed for dual-socket enterprise systems and select LGA1366 workstation boards. With a 2.80GHz base clock, 12MB Smart Cache, 6.40GT/s QPI, and support for ECC DDR3 memory, it is a strong fit for legacy virtualization, file server, lab, and workstation upgrade builds.

Technical Specifications

• Processor Family: Intel Xeon 5600 Series
• Processor Number: X5660
• S-Spec: SLBVG
• Base Clock Speed: 2.80GHz
• Max Turbo Frequency: Up to 3.20GHz
• Cores / Threads: 6 Cores / 12 Threads
• Intel Smart Cache: 12MB
• QPI Speed: 6.40GT/s
• Socket Type: LGA1366 / FCLGA1366
• Lithography: 32nm
• Thermal Design Power (TDP): 95W
• Memory Support: DDR3, Triple-Channel, ECC Supported
• Max CPU Configuration: 2
• Technologies: Hyper-Threading, Turbo Boost, VT-x, VT-d, EPT, Intel 64, AES-NI, SSE4.2

Interchangeable / Replacement Part Numbers

69Y0842, 587491-B21, 69Y0673, 59Y4010, 592035-L21, 592035-B21, 49Y7039, 594883-001, 590617-B21, 69Y5384, 59Y5721, 59Y4038, BX80614X5660, 69Y0841, 69Y0923, 601238-L21, 589723-L21, 589723-B21, 69Y0855, 601322-B21, 588064-B21, 603254-B21, SLBVG, 69Y0902, 59Y5710, 588064-L21, 592174-B21, 614736-001, 81Y6710, 587491-L21, 637828-B21, 59Y5732, 591898-L21, 69Y5385, 59Y4024, 603254-L21, 593825-B21, 601238-B21, 592174-L21, 591898-B21, AT80614005127AA, WG732AT, 69Y0901, 590617-L21

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or motherboard manufacturer prior to installation.

✔️ Dell PowerEdge: R410, R510, R710, T410, T610, T710, M610, M610x, M710HD
✔️ HPE ProLiant Rack Servers: DL360 G6, DL360 G7, DL380 G6, DL380 G7
✔️ HPE ProLiant Blade Servers: BL460c G7
✔️ IBM / Lenovo System x Rack Servers: x3550 M3, x3620 M3, x3630 M3, x3650 M3
✔️ IBM / Lenovo Blade Servers: BladeCenter HS22
✔️ ASUS Workstation Motherboards: P6T WS Professional, P6T6 WS Revolution

☑️ Key Features

☑️ 6-core / 12-thread Xeon processor for enterprise and workstation-class LGA1366 systems
☑️ 2.80GHz base frequency with Intel Turbo Boost up to 3.20GHz
☑️ 12MB Intel Smart Cache for strong multi-threaded performance
☑️ 6.40GT/s QPI for high-bandwidth communication in dual-socket platforms
☑️ Supports ECC DDR3 memory in supported server and workstation systems
☑️ Supports Intel Hyper-Threading, VT-x, VT-d, EPT, and AES-NI
☑️ Ideal for legacy server repair, workstation upgrades, virtualization labs, and replacement builds

⚙️ Fit Notes

• Designed for LGA1366 / FCLGA1366 platforms that support Intel Xeon 5600 series processors
• Many systems require the latest BIOS revision before installing a Xeon 5600-series CPU
• In dual-CPU servers, both processors should match in model, stepping, and specification for proper operation
• Confirm heatsink, power, and firmware compatibility before installation, especially in blade and rack servers
• For best results, use fresh thermal compound such as Shin-Etsu G751