Product comparison · 2 pcs/workstations

Lenovo ThinkCentre S51 P4 540 3.2GHz vs Lenovo TS ThinkCentre A51 P4 540 3.2GHz

33specifications compared
13differ
20identical
3known for one product only

Key differences

Internal memory
- ThinkCentre S51 P4 540 3.2GHz:0.5 GB
- TS ThinkCentre A51 P4 540 3.2GHz:0.25 GB
Maximum internal memory
- ThinkCentre S51 P4 540 3.2GHz:2 GB
- TS ThinkCentre A51 P4 540 3.2GHz:4 GB
Internal memory type
- ThinkCentre S51 P4 540 3.2GHz:DDR-SDRAM
- TS ThinkCentre A51 P4 540 3.2GHz:DDR2-SDRAM
USB 2.0 ports quantity
- ThinkCentre S51 P4 540 3.2GHz:8
- TS ThinkCentre A51 P4 540 3.2GHz:6
Power supply
- ThinkCentre S51 P4 540 3.2GHz:225 W
- TS ThinkCentre A51 P4 540 3.2GHz:310 W
Chassis type
- ThinkCentre S51 P4 540 3.2GHz:SFF
- TS ThinkCentre A51 P4 540 3.2GHz:Tower
Width
- ThinkCentre S51 P4 540 3.2GHz:127 mm
- TS ThinkCentre A51 P4 540 3.2GHz:178 mm
Depth
- ThinkCentre S51 P4 540 3.2GHz:390 mm
- TS ThinkCentre A51 P4 540 3.2GHz:450 mm

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre S51 P4 540 3.2GHz, TS ThinkCentre A51 P4 540 3.2GHz
36 specifications	A Lenovo ThinkCentre S51 P4 540 3.2GHz View product	B Lenovo TS ThinkCentre A51 P4 540 3.2GHz View product
Memory3 differ
Internal memoryDiffers	0.5 GB	0.25 GB
Maximum internal memoryDiffers	2 GB	4 GB
Internal memory typeDiffers	DDR-SDRAM	DDR2-SDRAM
Storageidentical
Storage drive typeKnown for one	Unknown — not stated by the source	SATA
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet	Ethernet/Fast Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	6
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Power1 differ
Power supplyDiffers	225 W	310 W
Design1 differ
Chassis typeDiffers	SFF	Tower
Software1 differ
Bundled softwareDiffers	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium, Access program, IBM Director Agent (web deliverable), ThinkVantage Client Security Software (web-downloadable), Norton AntiVirus 2004 OEM Version, PC Doctor diagnostics, ThinkVantage Rescue and Recovery with Rapid Restore	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium, Access program, Norton AntiVirus 2005 with 90 days of virus definition upgrades, PC Doctor diagnostics, ThinkVantage Rescue and Recovery with Rapid Restore
Weight & dimensions4 differ
WidthDiffers	127 mm	178 mm
DepthDiffers	390 mm	450 mm
HeightDiffers	346 mm	430 mm
WeightDiffers	8.5 kg	12.5 kg
Other features1 differ
Security featuresDiffers	-Boot without keyboard or mouse -Configuration password -Diskette Boot inhibit -Diskette I/O control -Hard disk drive password -Hard drive I/O control -Parallel port I/O control -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -U-Bolt anchoring featu	-Boot sequence control -Boot without keyboard or mouse -Configuration password -Diskette boot inhibit -Diskette I/O control -Hardfile I/O control -Parallel port I/O control -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -U-Bolt anchoring feature

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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