Cyberpower Liquid High 5GHz review

Price when reviewed

Intel’s current crop of processors is so stable and efficient that leaving one at stock speeds is seen as a disappointment these days. Given the potential speed boosts, we much prefer a nice overclocked chip – although hitting the heady heights of 5GHz still requires considerable expertise.

The Liquid High 5GHz comes courtesy of Cyberpower, a firm with a reputation for pushing boundaries, and its 3.4GHz Core i7-2600K has been boosted from 3.4GHz to 5GHz thanks to a mammoth 50x multiplier. The result is a benchmark result of 1.26, the joint-highest we’ve ever seen.

It takes more than mere air to keep such a huge overclock at an operable temperature, so Cyberpower has installed a proprietary water-cooling setup. Two of the 5.25in drive bays in the front of the Azza Hurrican chassis are occupied by an XSPC X20 750 reservoir full of blue coolant, and thick cables run towards a roof-mounted XSPC 360mm radiator that’s chilled by a trio of 120mm fans.

CyberPower Liquid High 5GHz

Despite the extreme heat produced by the processor, the water-cooling does its job: the 5GHz chip idled at a fine 44°C, peaking at a reasonable 83°C during our stress tests. Given that many lesser overclocks we’ve seen have reached or surpassed that temperature, that’s quite the cooling achievement.

Cyberpower hasn’t paid all its attention to the processor, either. Slotted into the motherboard is Nvidia’s most powerful single-GPU graphics card, the GeForce GTX 580. It demonstrated its power by blasting through our Crysis gaming benchmarks: our High quality test at 1,920 x 1,080 was blitzed at an average of 85fps, while upping the quality to Very High saw the frame rate dip to a still-stunning 57fps – scraping 1fps higher than the current A-List incumbent, Chillblast’s Fusion Dimension.

Eight gigabytes of RAM is more than enough for most tasks, and there’s the usual Blu-ray reader. There’s no separate boot SSD – unlike the Chillblast, which has an 80GB Corsair drive for that job – but Cyberpower uses a 30GB Kingston SSDNow V-Series drive for caching common files, courtesy of Intel’s Smart Response Technology (ISRT). More traditional storage comes courtesy of a 1TB Samsung mechanical disk.


Warranty1 yr return to base

Basic specifications

Total hard disk capacity1,000GB
RAM capacity8.00GB
Screen size24.0in


CPU familyIntel Core i7
CPU nominal frequency3.40GHz
CPU overclocked frequency5.00GHz
Processor socketLGA 1155
HSF (heatsink-fan)XSPC Delta CPU block & reservoir


MotherboardAsus P8Z68-V Pro
Motherboard chipsetIntel Z68
Conventional PCI slots free1
Conventional PCI slots total1
PCI-E x16 slots free2
PCI-E x16 slots total3
PCI-E x8 slots free0
PCI-E x8 slots total0
PCI-E x4 slots free0
PCI-E x4 slots total0
PCI-E x1 slots free1
PCI-E x1 slots total2
Internal SATA connectors4
Wired adapter speed1,000Mbits/sec


Memory typeDDR3
Memory sockets free0
Memory sockets total4

Graphics card

Graphics cardNvidia GeForce GTX 580
Multiple SLI/CrossFire cards?no
3D performance settingMedium
Graphics chipsetNvidia GeForce GTX 580
Graphics card RAM2.00GB
DVI-I outputs2
HDMI outputs1
VGA (D-SUB) outputs0
DisplayPort outputs1
Number of graphics cards1

Hard disk

Hard diskSamsung Spinpoint F3
Hard disk usable capacity931GB
Internal disk interfaceSATA/600
Spindle speed7,200RPM
Cache size64MB
Hard disk 2 make and modelKingston SSDNow V-Series
Hard disk 2 nominal capacity30GB
Hard disk 2 formatted capacity20
Hard disk 2 spindle speedN/A


Optical disc technologyBlu-ray reader/DVD writer combo


Monitor make and modelBenQ G2420HDBL
Resolution screen horizontal1,920
Resolution screen vertical1,080
Resolution1920 x 1080
DVI inputs1
HDMI inputs0
VGA inputs1
DisplayPort inputs0

Additional Peripherals

Sound cardRealtek HD Audio


ChassisAzza Hurrican
Case formatFull tower
Dimensions254 x 590 x 549mm (WDH)

Free drive bays

Free front panel 5.25in bays1

Rear ports

USB ports (downstream)8
eSATA ports2
PS/2 mouse portyes
Electrical S/PDIF audio ports0
Optical S/PDIF audio output ports1
3.5mm audio jacks8

Front ports

Front panel USB ports2
Front panel eSATA ports1
Front panel memory card readerno

Mouse & Keyboard

Mouse and keyboardLogitech MK320 wireless keyboard and mouse

Operating system and software

OS familyWindows 7

Noise and power

Idle power consumption193W
Peak power consumption620W

Performance tests

3D performance (crysis) low settings149fps
3D performance settingMedium
Overall Real World Benchmark score1.26
Responsiveness score1.15
Media score1.30
Multitasking score1.32

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