PC Specialist Ultima OC Review

Published by Marc Büchel on 27.10.15
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Specifications / Chassis

CPU Intel i7-5820K Overclocked 4.375GHz (BCLK 125MHz)
Cooler Corsair H100i GTX
Motherboard ASUS X99-A
Memory Kingston HyperX Predator DDR4-3000MHz - 2 x 8 GB Dual Channel CL 15-16-16-36
Graphics card PNY GTX 980 Ti Reference Design
Hard drive 1 x Seagate ST2000DM001 2TB
SSD 1 x Kingston HyperX SSD 240GB
Power supply Corsair CS750M ATX Modular
  • 8 x USB 3.0
  • 2 x USB 3.0 Front
  • 2 x USB 2.0
  • 1 x HDMI
  • 1 x DVI
  • 3 x DisplayPort
  • 1 x Gigabit LAN
  • 1 x S/PDIF
  • 5 x Audio jacks
Case NZXT S340
Dimensions 200 x 445 x 432 mm
Weight 15 Kg
Drivers NVIDIA ForceWare 355.82
OS Windows 8.1 x64


As we already mentioned this version of the PC Specialist Ultima is based on a midi tower case. Apparently it’s been important to the system integrator that this system comes with neat and sleek looking design. Going further down the road with the specs, there is an Intel Core i7-5820K CPU, which has been overclocked to 4.375GHz using the BCLK, which clocks at 125MHz. Apart from that there is a reference PNY GeForce GTX 980 Ti graphics card. The CPU has been placed on an ASUS X99-A Signature Series motherboard and there is a total of 16 Gigabyte memory. Acutally PC Specialist decided to use 2 x 8GB Kingston HyperX Predator DDR4-3000MHz modules, although Intel’s Haswell-E CPUs have a quad channel memory controller on board. Thinking about reasons for not using a quad channel kit, we know that it can be difficult to run quad channel at 3000 MHz with overclocked Intel HEDT processors. A quad channel configuration puts much higher load on the integrated memory controller (IMC) of the CPU, which in combination with an overclocking of the CPUs core frequency can quickly become too much. Going for a dual channel configuration allows a system builder to reduce the load on the IMC significantly. Last but not least in this paragraph we have a quick look at the storage devices and we find a mixture of one SSD and one HDD storage. To be a bit more precise there is a 240GB Kingston HyperX Savage SSD next to 2 Terabyte hard disk from Seagate.

As we’ve already mentioned this system is built around the nice looking NZXT S340 case, which measures 200 x 445 x 432 millimeter and the entire system weighs 15 kilogram. Apparently, PC Specialist wanted to build a good looking rig, which allows for a glance at what’s inside it and for that purpose they chose a case with side window. Apart from that this case comes with a clean front design, whereas there is no 5.25 inch drive slot, which could interfere with the looks. In order to realize appropriate cooling, there are air-intakes on both sides of the front. Furthermore there are dust filters, which do a good job keeping dust outside. Looking for I/O connectors we find two USB 3.0 ports alongside the usual mini jacks for microphone and headphone. Having another look at the cooling, we find an outtake fan on the back as well as at the top.

Talking about cooling: the overclocked Core i7-5820K receives cooling from a Corsair H100i GTX all-in-one watercooler, which is more than capable of keeping the CPU at reasonable temperatures. The radiator has been mounted in the front with the two fans sucking in fresh air and blowing it inside the case. Regarding the power supply there is a Corsair CS750M, whereas the “M” stands for modular. Using a modular PSU is always great, since it allows to attach only the cables, which are really necessary and therefore realize a clean cable management.

Page 1 - Introduction Page 7 - Games
Page 2 - Preview Page 8 - SSD
Page 3 - Specifications / Chassis Page 9 - Overclocking
Page 4 - Test Setup Page 10 - Power Consumption
Page 5 - 3D synthetic Page 11 - Noise Levels / Temperatures
Page 6 - 2D Page 12 - Conclusion

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PC Specialist Ultima OC Review - PCs - Reviews - ocaholic