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12/9/2009
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Review: HP ProBook 5310m Offers SMBs (Almost) Full Power In A Thin-And-Light Notebook

Unlike most thin-and-light notebooks, the stylish black ProBook 5310 is available with a standard-voltage Intel processor to deliver higher performance computing. The hit on battery life isn't as big as you might expect.

I liked HP's ProBook 5310m the minute I first set eyes on it, and after spending a couple weeks reviewing it, I still feel that way. The company has made a real effort to create a thin and light notebook targeted at SMBs that can be compared with standard laptops, not netbooks.

As thin-and-lights scramble to stake out the turf between large and powerful laptops and small but underpowered netbooks, HP touts the ProBook 5310m as the thinnest standard-voltage notebook on the market -- less than an inch think at the thickest point. It weighs less than 4 pounds.

Any thin-and-light computer requires compromises, though, and every model has to make its own unique choices. After spending plenty of time both carrying it around and actually working with it, the 5310m strikes me as embodying a particularly intelligent and thoughtful set of those compromises.

The unit certainly looks great, both inside and out. On the outside, the black brushed aluminum display enclosure and palm rest is both svelte and businesslike. (The bottom of the unit is a magnesium alloy.)

On the inside, the matte black chiclet keyboard looks clean and orderly, and HP claims that it's spill-resistant too -- I managed to avoid testing that feature. Most important, the computer just feels good, like a finely crafted machine.

HP5310m-4 The HP ProBook 5310m looks good from several angles.

That's great, but only if it performs like one as well. I didn't run benchmark tests, but the 5310m includes a number of high-performance features, including a 7200 rpm hard drive (160 GB on the base model, 320 GB on the high-end versions).

But the biggest performance booster is the availability of a full-power 2.26 GHz Intel Core 2 Duo SP9300 processor with a 6 MB Level 2 cache (the base model comes with a much-slower 1.2 GHz Intel Celeron SU2300 chip). All models use on board Mobile Intel GS45 Express graphics.

Most makers of these thin-and-light notebooks use Ultra-Low-Voltage chips like the Intel ULV SU7300 ULV, ostensibly to save power and extend battery life. But those chips are much slower and -- significantly -- much less expensive than the full-power versions.

The difference in performance might not be noticable in everyday computing tasks, but anyone who's used a puny Atom-powered Netbook knows that it never hurts to have some extra processing power available when you need it. The 5310m certainly never felt underpowered in everything from big spreadsheets to HD videos.

What's even more interesting, though, is that according to Jeremy Brody, HP's business notebooks product manager, the full-power versions don't sacrifice all that much battery life. Brody claims that the 5310m gets up to 6.5 hours of power per charge on its 4-cell battery, only a half hour less than it would with a ULV chip. I didn't get that much real-life use on each charge, but I was able to work for almost 4 hours at a time, even when using Wi-Fi and playing multimedia files.

Fast-Booting Linux Backup OS
In addition to using a faster chip, the ProBook 5310m also uses a faster operating system -- at least some of the time. HP QuickLook and HP QuickWeb use a secondary Linux OS to to let you check your Outlook e-mail or start surfing the Web in less than 30 seconds. The QuickWeb functionality was not complete, and you can't connect to a network that way, but it can definitely save some time when you just need to get online in a hurry. For security, it can be set to not download anything, even cookies - "it always works the same way as day one," Brody explains. (There are also fully Linux-powered versions available, some with SDDs instead of hard drives.)

With the 13.3-inch screen typical of thin and light notebooks, there's plenty of room for a full keyboard layout, and the 5310m's keys are intelligently arrayed with no unusual surprises. Only the function keys are anything less than standard.

The 5310m sports a 2 MP Web cam. I'm not sure that's a big upgrade from the standard 1.3 MP version, but it's apparently part of HP's effort to offer premium performance. The asymmetrically located touchpad has a "scroll zone" and is equipped for multi-gesture control, but that capability is turned off by default, apparently to avoid confusing anybody. (Frankly, that seems confusing to me…) It works well enough, but I still prefer a mouse to any touchpad.

There are 3 USB ports and an SD card reader. In addition to a network port, 802.11a/b/g is standard on all models and n and wireless broadband are also available. The ProBook 5310m comes with HP's standard suite of software, including HP Protect Tools.

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