Lenovo 4105, 4157, 4217 manual Appendix B. System memory speed

Appendix B. System memory speed

The Intel Xeon microprocessor families compatible with this ThinkStation computer feature an integrated memory controller, which provides the microprocessor with direct access to the system memory. Because of this design, the system memory speed will be determined by a number of factors, including the microprocessor model and the type, speed, size (capacity), and number of DIMMs installed. Refer to the following table for the information on the supported system memory speed for your own computer model.

Table 1. DIMM type and speed: PC3-10600U

DIMM size (capacity)	Number of DIMMs	Microprocessor model	Memory frequency
	installed per CPU bank
		Intel Xeon E5502, E5503,	800 MHz
		E5504, E5506, E5507
		Intel Xeon E5520, E5530,
		E5540, E5620, E5603,
		E5606, E5607, E5630,
		E5640, E5647, W3503,	1066 MHz
		W3505, W3520, W3530,
	1 to 3	W3540, W3550, W3565,
		W3670
		Intel Xeon E5645, E5649,
		X5550, X5560, X5570,
		X5650, X5660, X5667,
		X5670, X5672, X5675,	1333 MHz
		X5677, X5680, X5687,
		X5690, W3570, W3580,
		W3680, W3690, W5580,
1 GB, 2 GB, 4 GB		W5590
		Intel Xeon E5502, E5503,	800 MHz
		E5504, E5506, E5507
		Intel Xeon E5520, E5530,
		E5540, E5620, E5603,
		E5606, E5607, E5630,
		E5640, E5647, X5550,	1066 MHz
		X5560, X5570, W3503,
	4 to 6	W3505, W3520, W3530,
		W3540, W3550, W3565,
		W3570, W3580, W3670,
		W5580, W5590
		Intel Xeon E5645, E5649,
		X5650, X5660, X5667,	1333 MHz
		X5670, X5672, X5675,
		X5677, X5680, X5687,
		X5690, W3680, W3690

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