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Lenovo ThinkCentre Edge 91z 7075D2G review

Our Rating :
Price when reviewed : £734
inc VAT

The 7075D2G's outstanding three-year warranty and serious processor power make it good value, but it has a small hard disk


2.5GHz Intel Core i5-2400S, 4GB RAM, 21.5in 1,920×1,080 display, Windows 7 Professional 64-bit

Lenovo’s ThinkCentre 91z 7075D2G is a more suitable business PC than most all-in-ones we look at, with the exception of Apple’s iMac range. However, it’s also a perfectly viable home computer, and its business origins provide a number of features that set it apart from the majority of all-in-ones, most notably a massive three-year onsite warranty that’ll have a repairman at your door within two business days of a fault being reported.

Lenovo ThinkCentre Edge 91z 7075D2G

Like Apple, Lenovo has seen no need to use a touchscreen for the PC’s 21.5in integrated display. This immediately cuts out the risk of a certain graininess that some touchscreens suffer. The display is glossy, though, and rather reflective if you’re viewing a dark screen with a bright light behind you. However, colours are soft and natural-looking, although pure white tones aren’t quite as bright as we’ve seen from our favourite monitors. Nonetheless, the 1,920×1,080 display is certainly up to the job. You can even use it as a standalone monitor, thanks to the VGA input at the back, and effortlessly switch between the input and PC at the press of a button on the front panel.

Inside, the PC has a 2.5GHz Intel Core i5-2400S processor – a power-efficient choice that we’ve seen in many of our favourite all-in-one PCs. It’s doing a good job here, powering the 7075D2G to an overall score of 81 in our benchmark tests. The system comes with 4GB of memory; other versions of the PC come with more, and all incarnations are installed with a 64-bit version of Windows Professional.

Lenovo ThinkCentre Edge 91z 7075D2G side and back

The graphics processor is among the 7075D2G’s weakest points – it relies on the Core i5’s on-board GPU, which means that the best 3D gaming score we were able to get was 12.5fps in Dirt 3 at a resolution of 1,280×720 and High quality. You’ll be able to run older games more smoothly, and casual gaming won’t be a problem, but don’t expect too much. The PC’s other great problem is the capacity of its hard disk. At just 320GB, with 10GB occupied by the restore partition, we’ve not seen a PC with less disk space in quite some time.

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Basic Specifications

Rating ****
Processor Intel Core i5-2400S
Processor external bus 100MHz (Sandy Bridge DMI)
Processor multiplier x25
Processor clock speed 2.5GHz
Processor socket LGA1155
Memory 4
Memory type PC3-10666
Maximum memory 16GB
Motherboard Lenovo S1T9575
Motherboard chipset Intel B65


USB2 ports (front/rear) 2/4
Firewire ports (front/rear) 0/0
eSATA ports (front/rear) 0/0
Wired network ports 1x 10/100/1000
Wireless networking support 802.11n

Internal Expansion

Case all-in-one
PCI-E x1 slots (free) N/A
PCI-E x16 slots (free) N/A
Free memory slots 1

Hard Disk

Hard disk model(s) Seagate ST3320413AS
Interface SATA2
Total storage capacity 320GB


Graphics card(s) Intel GMA X4500
Graphics/video ports HDMI


Sound Realtek HD Audio
Sound outputs 3.5mm stereo line out, 3.5mm mic in
Speakers integrated

Removable Drives

Supported memory cards SH, SDHC, MMC, Memory Stick PRO
Optical drive type(s) DVD+/-RW -DL


Viewable size 21.5 in
Screen model integrated
Native resolution 1,920×1,080
Screen inputs VGA

Other Hardware

Keyboard Lenovo KBRF3971
Mouse Lenovo MORFFHL


Software included Corel DVD MovieFactory
Operating system Windows 7 Professional 64-bit
Operating system restore option restore partition

Buying Information

Warranty three years onsite
Price £734

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