Lenovo R52 Series, R50e Series, R51e Series manual R50e series

		Product overview
Feature	Description
Optional memory	v	256 MB DDR SDRAM SO-DIMM
		(PC2700) card
	v 512 MB DDR SDRAM SO-DIMM
		(PC2700) card
	v 1 GB DDR SDRAM SO-DIMM (PC2700)
		card
	v 256 MB DDR SDRAM SO-DIMM
		(PC2-4200) card
	v 512 MB DDR SDRAM SO-DIMM
		(PC2-4200) card
	v 1 GB DDR SDRAM SO-DIMM
		(PC2-4200) card
		(maximum of 2048 MB)
Bus architecture	v	400 MHz PSB (Processor System Bus)
	v	533 MHz PSB
	v 333 MHz DDR (Double Data Rate)
		SDRAM (Synchronous DRAM) (PC2700)
	v 533 MHz DDR-2 (Double Data Rate 2)
		SDRAM (Synchronous DRAM)
		(PC2-4200)
	v	HUB link
	v	PCI bus
	v	LPC bus
Graphic memory	R50e series:
chip	v	Intel 855GM
	R51e series:
	v	RC410M
	R52 series:
	v	Intel 910GML
	v	Intel 915GM
	v 32 MB DDR SDRAM (ATI M22-32)
	v 32 MB DDR SDRAM (ATI M22-64)
	v 64 MB DDR SDRAM (ATI M22-64)
CMOS RAM	v	242 bytes

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ThinkPad R50e, R51e and R52 Series 49