It’s between 5.05~5.08V, about 0.59% range.
It’s between 12.42~12.55V, about 1.04% range.
HX750W 3V and 5V voltage vibration range is very low.
It’s really impressive.
You have to pay attention to that 12V consumption is much higher as OC LGA 1156 to 4GHz.
12V voltage drop is only 1.04%. HX750W is the best in my past experience in using power supply.
The whole platform full speed loading is over 700W.
HX750W body temperature is still low, around 40 degree C by hand-touch feeling.
Also, power supply back temperature is around 55 degree C. It’s acceptable range.
12cm fan speed acoustic is hard to hear. It’s rare performance for such high power consumption as HX750W.
The last part is using accurate power meter to measure.
5V measurement is 5.14V. It’s a little higher than MB value, 5.08V.
OCCT full speed
Voltage range is between 5.14~5.15V. Voltage rise 0.01V comparing to standby.
12V measurement is 12.12V It’s a little lower than MB value, 12.55V.
OCCT full speed
Voltage range is between 12.12~12.13V. Voltage rise 0.01V comparing to standby
As using meter, 5V and 12V are very still during standby and full speed.
Even the voltage change is only 0.01V. According to this measurement result, HX750W voltage stabilization is very high level.
Especially the 12V vibration range, very few power supplies can be as stay still as HX750W.
CORSAIR HX750W Conclusion
1.CORSAIR package and accessories are good quality and also provides 7 years warranty.
2.Modulized design and 100% Japanese solid capacitors usage.
3.Passed 80PLUS Silver certificate and transfer efficiency is 90.02%
4. Temperature-controlled fan is very silent in normal usage. Even it’s hard to hear noise in full load condition.
5.Voltage vibration range is very low in high load. Especially the 12V is really impressive.
1.4 X PCI-E 6+2 Pin connectors are too less.
2.Matte paint outlook is easy to be scratched.
C/P Value ★★★★★★★★★☆
Someone think why I don’t use professional equipments to test power supply.
Maybe instrument test make readers feel more professional and credibility.
However, I think many brands power supply have made many test before selling.
If I use the same configuration as users real usage and test it in full load condition, it will be close to reality.
I used to suffer that a power supply passed professional instrument test, but has stability issue as installing to computer.
There is one more mystical thing. CORSAIR HX750W package shows 80 Plus Silver Certificate.
When I check in 80 Plus website, HX750W is Gold certificate and the power transfer efficiency is 90.02%.
CORSAIR designed it by Silver level, but some items have achieved Gold level.
It caused HX750W got Gold in 80 Plus, but still advertise it as Silver certificate.
This way is different as some brands only care about 80 Plus certificate but not product design and components.
CORSAIR HX750W owns high quality and high performance. Also, its package and components are good as well.
Plus above Silver level power efficiency, even though it’s 750W, but the power consumption is not much higher than low watt PSU during usage.
CORSAIR also provides 7 years warranty. You can see the vendor is very high confident with HX750W quality.
The CORSAIR HX750W price is around 150 USD.
But for middle high power supply, I think CORSAIR HX750W is still a very good C/P value product.
It’s in your must buy list if you are looking for same segment PSU.