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Apple's all-in-one iMac has a lot to answer for, not least the fact that the PC market is now awash with AIO designs with more than a nod to Cupertino. At first glance, HP's 27in. Z1 Workstation looks a fairly standard example of its type, but closer inspection reveals plenty of interesting features. For a start, this is no slimline, elegant system: it measures 66.04cm wide by 58.42cm high by 41.91cm deep and weighs from 21.32kg. That's a lot of desk space, and a non-trivial lifting job.
Inside that large chassis, which opens cleverly like a suitcase, is found a powerful and easily upgradable spec including a quad-core Xeon E3-Series processor, an Nvidia Quadro graphics adapter and a 1TB hard drive with battery like HP F1781A Ac Adapter , HP 298238-001 Ac Adapter , HP OmniBook 2106 Ac Adapter , HP OmniBook 6050 Ac Adapter , HP Pavilion N5500 Ac Adapter , HP Pavilion n6400 Ac Adapter , HP Pavilion XF125 Ac Adapter , HP Pavilion ZT1130 Ac Adapter , HP ED495AA Ac Adapter , HP 391173-001 Ac Adapter , HP ACC23H Ac Adapter , HP Pavilion DV1000 Ac Adapter . This is no 'knowledge worker' system, but a powerful (and pricey) tool aimed at professionals such as web designers, video editors and financial analysts.
As an all-in-one system, the Z1 Workstation is largely defined by its screen, which is an impressively sharp and bright LED-backlit 27in. IPS panel with a resolution of 2,560 by 1,440 pixels. Viewing angles are good, at 178 degrees in both vertical and horizontal planes, but not everyone will appreciate the screen's glossy coating. Beneath the edge-to-edge glass is a speaker grille, while the top bezel houses a 2-megapixel 1080p HD webcam and a dual microphone array.
Seen from the front, the system is largely black, while the rear of the system unit has a brushed aluminium finish. It's not the most stylish-looking AIO we've seen, but it's certainly imposing.
The 27in. monitor/system unit is a lot of weight for the stand to carry. The stand is dual-hinged, making the Z1 height-adjustable, which is admirable, but the system unit's weight makes it a struggle to manoeuvre. On the plus side, you can fold the monitor flat against the base if you need to carry it (not something we advise you do often); a green push-button in the base unlocks it from this configuration.
If you really can't get on with the desktop stand, the system unit can be mounted on a VESA arm of your choice — perhaps alongside a second 27in. monitor for those requiring serious amounts of screen space.
The best aspect of the design is the way the system unit opens up (from the flat position described above), and the modular construction that's revealed within. There isn't a trailing wire to be seen, and green-labelled components — including the hard drive, graphics card, optical drive, power supply and cooling fan — can all be removed and replaced without the need for tools.
One other awkward design feature is the placement of the rear-mounted ports (3 audio ports, 4 USB ports, an S/PDIF connector, a network port, a DisplayPort connector and the power input): because these are centrally located, they're hard to even see, let alone access, with the monitor in its 'working' position, thanks to the stand mechanism getting in the way. It might not be symmetrical, but putting these ports to one side (as on the iMac) would make things easier.
Our review sample of the Z1 Workstation was based on Intel's Xeon E3-1280 processor, a quad-core CPU running at 3.5GHz with a maximum Turbo frequency of 3.9GHz. It's supported by the Intel C206 chipset and, in our system, 8GB of 1,600MHz DDR3 RAM. Up to 32GB of RAM can be accommodated by the system's four DIMM slots. The operating system on our review unit was Windows 7 Professional 64-bit, but Linux (SUSE Enterprise Desktop 11 or Red Hat Enterprise Linux) is also supported.