Acer EM250 manual System Memory Specification, System Storage Specification

System Memory

	Item					Specification
Memory controller				Built in
Memory size				512MB or 1GB DDR2 RAM (if 2Gb die support is available)
DIMM socket number				1
Supports memory size per socket				2 GB
Supports maximum memory size				2 GB
Supports DIMM type				DDR II 533Mhz SDRAM memory interface design
Supports DIMM Speed				533Mhz SDRAM
System Storage
	Item					Specification
HDD				• 9.5mm height, 2.5" HDD
				• Easily removable no more than two screws
				•	SATA bus
				•	160/250GB and above
				•	5400 rpm
				•	SATA connector BTO
Hard Disk Drive Interface
Item						Specification
Vendor &		Seagate	Seagate			Seagate	HGST L9A300	WD
Model Name		ST9160310AS	ST9250827AS			ST9250315AS	HTS543225	WD2500BEVT
							HTS543216	WD1600BEVT
Capacity		160	250			250	250, 160	250, 160
(GB)
Bytes per		512	512			512	512	512
sector
Data heads		2	4			2	3, 2	3, 2
Drive Format
Disks		1	2			1	2, 1	2, 1
Spindle		5400	5400			5400	5400	5400
speed (RPM)
Performance Specifications
Buffer size		8 MB	8 MB			TBD	8 MB	8 MB
Interface		SATA	SATA			SATA	SATA	SATA
Fast data		352	778			TBD	3000	3000
transfer rate
(Mbits/sec,
max)
Media data		150	300			TBD	775	850
transfer rate
(Mbytes/sec
max)
DC Power Requirements
Voltage		5V ±5%	5V ±5%			TBD	5V ±5%	5V ±5%
tolerance

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