Serverous C1840SS review

With 18 micro servers crammed into a 4U chassis, the Serverous C1840SS is a good choice if reduced power consumption and a high rack density are priorities.

Power test results

The C1840SS proved to be undemanding in our power tests. To get a baseline figure, we removed all the nodes and measured the chassis with the three power supplies and all fans running. This settled at 100W and with all nodes pushed back in but still powered off, overall consumption rose to 187W.

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With one node powered up we measured total usage with Windows Server 2008 R2 in idle settling at 198W Running the SiSoft Sandra benchmarking app saw consumption peak at 217W. We then powered up more nodes and took idle and peak measurements along the way.

In idle, we saw three, six and nine nodes draw a total of 215W, 242W and 265W and under pressure these figures peaked at 294W, 360W and 455W. These are respectable figures and equate to an average power draw per node of only 29W in idle and 51W under heavy load.


The Serverous C1840SS delivers an impressive processing density in a compact chassis. Power constrained businesses will appreciate its low consumption and it's good value with the entry level nodes in the review system costing 744 each.


ITPRO Value award


Businesses looking for high-density cloud computing at a low price will find the C1840SS suited to their needs. It offers a Xeon E3-based micro server density and data centres reaching the limits of their utility supply will appreciate its low power consumption. Available from

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Chassis: 4U rack Power: 3 x 800W hot-plug power supplies Cooling: 8 x hot-swap fan modules Blade slots: 18 x hot-swap Network: 19-port passthrough blade (1 x CMM, 18 x node/BMC) Nine server nodes each with the following: CPU: 2.2GHz Xeon E3-1220L Memory: 2GB DDR3 UDIMM expandable to 32GB Storage: 2 x 250GB Toshiba Enterprise 7.2k SATA II SFF Storage controller: Intel C202 RAID arrays: 0, 1, JBODs Network: 1 x Gigabit Other ports: 2 x USB2, VGA Management: Tyan IPMI 2.0 BMC (shared network port) Warranty: 3yrs on-site NBD

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