HP EliteBook 2540p review

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HP’s EliteBook business laptops are all built to last and the new 2540p is no exception; its tough magnesium-alloy casing can withstand far more than the usual knocks and bumps. Certified to military standards, it should be able to survive intense levels of dust, humidity, temperature and vibration so the 1.8kg ultra-portable will appeal to anyone looking for a durable machine that won’t weigh them down.

An Intel Core i7 processor provides plenty of performance muscle, despite being a low-voltage model. The dual-core i7-640LM runs at 2.13GHz and can use Turbo Boost to increase up to 2.9GHz. Paired with 4GB of RAM and a 160GB solid state disk (SSD), it managed a stellar 46 overall in our multimedia benchmarks.

Certified to military standards, it should be able to survive intense levels of dust, humidity, temperature and vibration.

Although it can't match Intel's newer Sandy Bridge chips, the 2540p still has plenty of processing power; even when running several resource-intensive applications, the system always felt responsive. The underside of the laptop did become noticeably warmer than usual when churning through our benchmarks though.

The other benefit of using a low-voltage processor is superb battery life. Managing just over seven hours in our light-use test, the laptop should be able to last a full day's work on a single charge.

Just like the outer chassis, the keyboard is well built and designed to withstand the elements. Each key has a reassuring amount of tactile feedback and very short travel times. Understandably for a 12in ultra-portable there's no room for a separate number pad, but the QWERTY keys are at least full-size. In spite of their slightly tighter-than-usual grouping, we were still able to type at full speed straight away. It isn't quite perfect; the function keys have shrunk to well under half size, which can make them difficult to hit without also pressing their neighbours, and the small Tab key also proved to be a minor irritation.

The keyboard itself isn't backlit, but a tiny LED spotlight next to the integrated webcam can illuminate it to make working in dark surroundings slightly easier. It’s angled so the keyboard will always stay lit regardless of how far the screen is tilted back, but it isn’t particularly bright; at the right angle, the glow from the display is more than sufficient for typing in darker environments.

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As well as a responsive, albeit rather small touchpad, a separate touch stick recessed into the keyboard tray provides a second option for mouse control. Two sets of buttons provide the flexibility to use either input device, although they don't provide as much tactile feedback as we'd like.

Image quality from the 12.1in screen was slightly above average; the 1,280x800 resolution is sufficiently high for most tasks and images looked very sharp. Colours were mostly accurate although there was a slight imbalance towards the yellow end of the spectrum. Brightness was excellent, which should make it easier to use the system in direct sunlight. Vertical viewing angles are very limited, but that shouldn't be too much of a problem; the screen tilts back over 180 degrees. The matt finish also helps stop reflections from harsh office lighting obscuring the display.

Unsurprisingly for a top-end business machine, the EliteBook 2540p is laden with connectivity options. Two of the three USB2 ports are found at the back, along with the Gigabit Ethernet port and battery pack, which protrudes outwards slightly from the main chassis. The third USB port is on the left side, between the modem and DVD re-writer.

The right side holds four-pin FireWire 400, VGA, DisplayPort and port replicator connector, as well as an all-important Kensington security lock mount for when working on the move. Finally, an ExpressCard /34 slot sits above a SD memory card reader, so there’s even room to add further connectivity at a later date.