facebook rss twitter

Review: Corsair Obsidian Series 750D

by Parm Mann on 24 September 2013, 13:00

Tags: Corsair

Quick Link: HEXUS.net/qab3cf

Add to My Vault: x

Specification and Test Methodology

Corsair Obsidian Series 750D Specification

Materials Brushed Aluminium and Steel
Available Colours Black
Motherboard Support Micro ATX / ATX / E-ATX / XL-ATX
External Optical Bays 5.25in x 3
Internal Storage Bays 2.5in x 4
2.5/3.5in x 6
Cooling Support for up to 8 fans (3x AF140L fans included)
Radiator Support Top: up to 360mm
Front: up to 280mm
Bottom: up to 240mm
Expansion Slots 9
Max CPU Cooler Height 180mm
Max GPU Length 460mm
I/O Panel USB 3.0 x 2
USB 2.0 x 2
Mic x 1, Audio x 1
Power Supply Mount ATX (PSU not included)
Dimensions (H x W x L) 560mm x 235mm x 546mm

Test System Configuration

Motherboard ASUS Sabertooth Z77
CPU Intel Core i5-3570K @ 4.4GHz
CPU Cooler Arctic Cooling Freezer 13
Memory G.Skill Ripjaws-X 8GB (F3-12800CL7D-8GBXH)
Memory Speed and Timings 1,600MHz, 7-8-7-24-2N
Graphics Cards 2x Sapphire Radeon HD 7950 OC in CrossFireX
Storage 120GB SanDisk Extreme SSD
Optical Drive Pioneer DVR-S19LBK DVD Writer
Power Supply Corsair HX1050W

Our Z77 test platform consists of an ASUS Sabertooth motherboard, an Intel Core i5-3570K processor overclocked to a modest 4.4GHz, an Arctic Cooling Freezer 13 cooler, 8GB of high-performance G.Skill Ripjaws-X memory and two factory-overclocked Sapphire Radeon HD 7950 OC graphics cards in a CrossFireX configuration.

To find out how well the chassis can cool this particular setup, we record the CPU temperature during a 15-minute stint of the Prime95 small-FFT stress test. In order to provide a stabilised reading we then calculate an average temperature across all cores from the last five minutes of testing.

To get an idea of GPU cooling performance, we then record the highest GPU temperature after 15 minutes of running Aliens vs. Predator. Last but not least, we also measure chassis noise by using a PCE-318 noise meter to take readings when idle and while running Aliens vs. Predator.

All chassis are tested only with the standard manufacturer-supplied fans (any/all of which are set to 'silent' in the ASUS BIOS or low-speed using a fan controller if present), and to take into account the fluctuating ambient temperature, our graphs depict both actual and delta temperature - the latter is the actual CPU/GPU temperature minus the ambient. For the record, room temperature while testing today's chassis was recorded as 22.9ºC.