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Optimize laptop battery life

With laptops outshipping desktop PCs, more mobile laptop users want the convenience of an easy-to-tote, lightweight system that enables them to work longer between battery charges whether they are in flight or moving from meeting to meeting. Increasingly, laptop and Ultrabook manufacturers are using solid state drives (SSD) – typically thinner and more power-efficient than hard disk drives (HDDs) – to reduce system size and weight and help extend the intervals between battery recharges. Not all SSDs, however, consume less power than HDDs.

Lower SSD  

LSI® SandForce® flash controllers enable smaller laptops with longer battery life

LSI SandForce flash controllers reduce the footprint and power draw of Serial ATA (SATA) SSDs by using no external DRAM cache, which increases the demands on component and support circuitry. SandForce controllers also cut SSD power consumption – by up to 400 times* – by working in tandem with the SATA DevSleep power-saving feature, found in the latest Intel chipsets. SandForce controllers enable this dramatic reduction without compromising split-second response times when the SSD is awakened from sleep mode.

A unique LSI SandForce controller feature, DuraWrite™ data reduction technology, also helps reduce SSD power consumption in laptops and Ultrabooks™ by enabling much faster writes to the SSD flash memory, which reduces the amount of time the flash chips must be active. DuraWrite technology also streamlines SSD data movement during garbage collection (the background process of clearing unneeded data to optimize write performance) and over provisioning (a memory-management process that increases performance and endurance) to reduce power draw even further.


*Based on internal LSI testing.

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