Lenovo 4265, 4271, 4272, 4269, 4264, 4266, 4263, 4262 manual Appendix A. System memory speed

Appendix A. 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 computer model.

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

	Number of DIMMs
DIMM size (capacity)	installed per	Microprocessor model	Memory frequency
	microprocessor bank
		Intel Xeon E5502, E5503,	800 MHz
		E5504, E5506, E5507
		Intel Xeon E5603, E5606,
		E5607, E5520, E5530,	1066 MHz
1 GB, 2 GB, 4 GB	1 to 3	E5540, E5620, E5630,
		E5640
		Intel Xeon E5645, E5649,
		X5550, X5560, X5570,	1333 MHz
		X5650, X5660, X5667,
		X5670, X5672, X5675
Table 2. DIMM type and speed: PC3-8500U
	Number of DIMMs
DIMM size (capacity)	installed per	Microprocessor model	Memory frequency
	microprocessor bank
		Intel Xeon E5502, E5503,	800 MHz
		E5504, E5506, E5507
		Intel Xeon E5603, E5606,
1 GB, 2 GB, 4 GB	1 to 3	E5607, E5520, E5530,
		E5540, E5620, E5630,	1066 MHz
		E5640, E5645, E5649,
		X5550, X5560, X5570,
		X5650, X5660, X5667,
		X5670, X5672, X5675
Table 3. DIMM type and speed: PC3-10600R
	Number of DIMMs
DIMM size (capacity)	installed per	Microprocessor model	Memory frequency
	microprocessor bank
		Intel Xeon E5502, E5503,	800 MHz
		E5504, E5506, E5507
		Intel Xeon E5603, E5606,
1 GB, 2 GB, 4 GB, 8 GB	1 to 3	E5607, E5520, E5530,	1066 MHz
		E5540, E5620, E5630,
		E5640
		Intel Xeon E5645, E5649,	1333 MHz
		X5550, X5560, X5570,

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