Corsair TX750 750W Power Supply Review

Performance Tests

Processor: Intel Core 2 Quad Q6600 @ 3.5Ghz (B3)
Memory: 4GB Corsair Dominator DDR3 @ 1600Mhz (Thanks to Corsair)
Motherboard: Asus Blitz Extreme
Graphics Cards: 2X Gigabyte HD2900XT 512MB
Disk Drive: Pioneer DVD Writer
Hard Drive: Seagate Barracuda 320GB SATAII
Fans: 5X Yate Loon 120mm @ 1200RPM
Monitor: LG Flatron L2000CN-BF (1600X1200)

For our complete power supply testing methodology, please go here: Hardware Canucks Power Supply Testing Methodology


Efficiency Testing



The efficiency displayed by the Corsair TX750 is quite good all-around. While is wasn’t as good as the Cooler Master Real Power Pro we tested a few weeks ago, it is still a good 3-5% more efficient than the Silverstone DA850.


Voltage Regulation Testing


+5V Voltage Regulation



Without a doubt, this Corsair power supply is at the top of the heap when it comes to +5V regulation…even though I do not have the +5V rail loaded that much. This low load on this rail happens with most modern computer systems.


+3.3V Voltage Regulation



The TX750 continues its superb performance in the +3.3V regulation tests.


+12V Voltage Regulation



While the voltage regulation of the TX750 is second to none, there are a few interesting points that should be picked out of the results. First of all you will notice that as the load increases, in some cases the voltages actually go up instead of going south unlike we see with other power supplies. In this case the different voltage drops are due to the idle and CPU Load tests being measured from the EPS12V connector while the Game and System Stress results were taken from a PCI-E connector.


+12V Ripple Testing



The Corsair TX750W finishes out battery of tests with flying colors by putting out some of the best numbers I have seen in the ripple suppression tests. I was particularly surprised my its poise in the highest load test.


Heat & Acoustical Performance

Considering the amount of load I put on this power supply, I was half expecting the fan speed to increase quite a bit by the System Stress test. Fortunately, the huge 140mm fan stayed quiet throughout the tests and was quite a bit more silent that the majority of the other fans in the case it was installed into.

With the fan spinning silently away, the exhaust temperatures never increased to the point where it would have been time to worry.