IBM System x3550 M4 16Table 4. Processor options (Part 2: Intel Xeon processor E5-2600 product family)Part number* Featurecodes**Description Standard modelswhere usedIntel Xeon processor E5-2600 product family69Y5672 A1LG / A1LT Intel Xeon E5-2603 4C 1.8GHz 10MB 1066MHz 80W A2x69Y5674 A1LJ / A1LV Intel Xeon E5-2609 4C 2.4GHz 10MB 1066MHz 80W B2x69Y5675 A1LK / A1LW Intel Xeon E5-2620 6C 2.0GHz 15MB 1333MHz 95W C2x, C4x, DDx69Y5676 A1LL / A1LX Intel Xeon E5-2630 6C 2.3GHz 15MB 1333MHz 95W D2x94Y7464 A2B3 / A2B6 Intel Xeon E5-2630L 6C 2.0GHz 15MB 1333MHz 60W -94Y7546 A2VR / A2QK Intel Xeon E5-2637 2C 3.0GHz 5MB 1600MHz 80W -69Y5677 A1LM / A1LY Intel Xeon E5-2640 6C 2.5GHz 15MB 1333MHz 95W F2x94Y7465 A2B4 / A2B7 Intel Xeon E5-2643 4C 3.3GHz 10MB 1600MHz 130W 32x00D9441 A39A / A39D Intel Xeon E5-2648L 8C 1.8GHz 20MB 1600MHz 70W69Y5678 A1LN / A1LZ Intel Xeon E5-2650 8C 2.0GHz 20MB 1600MHz 95W G2x69Y5685 A1LS / A1M3 Intel Xeon E5-2650L 8C 1.8GHz 20MB 1600MHz 70W 52x00D9440 A399 / A39C Intel Xeon E5-2658 8C 2.1GHz 20MB 1600MHz 95W69Y5679 A1LP / A1M0 Intel Xeon E5-2660 8C 2.2GHz 20MB 1600MHz 95W H2x94Y7547 A2GN / A2GP Intel Xeon E5-2665 8C 2.4GHz 20MB 1600MHz 115W 62x69Y5682 A1LR / A1M2 Intel Xeon E5-2667 6C 2.9GHz 15MB 1600MHz 130W -94Y7463 A2B2 / A2B5 Intel Xeon E5-2670 8C 2.6GHz 20MB 1600MHz 115W J2x69Y5680 A1LQ / A1M1 Intel Xeon E5-2680 8C 2.7GHz 20MB 1600MHz 130W L2x94Y7545 A2VQ / A2QJ Intel Xeon E5-2690 8C 2.9GHz 20MB 1600MHz 135W M2x* The option for the second processor includes two additional system fans.** The first feature code is for the first processor; the second feature code is for the second processorMemory optionsIBM DDR3 memory is compatibility tested and tuned for optimal IBM System x® performance andthroughput. IBM memory specifications are integrated into the light path diagnostics for immediate systemperformance feedback and optimum system uptime. From a service and support standpoint, IBM memoryautomatically assumes the IBM system warranty, and IBM provides service and support worldwide.The IBM System x3550 M4 supports DDR3 memory. The server supports up to 12 DIMMs when oneprocessor is installed, and up to 24 DIMMs when two processors are installed. Each processor has fourmemory channels, and there are three DIMMs per channel.The following rules apply when selecting the memory configuration:Server supports UDIMMs (E5-2600 only), RDIMMs, and LRDIMMs.Mixing different types of memory (UDIMMs, RDIMMs, and LRDIMMs) is not supported.