Corsair TX750 V2: New and Improved
by Martin Kaffei on May 16, 2011 6:55 PM EST- Posted in
- Cases/Cooling/PSUs
- Corsair
- PSUs
- 80Plus Bronze
- 750W
- TX V2
Noise Levels
| Sound Pressure Level | |
| Load | dB(A) |
| 10% | 24 |
| 20% | 24 |
| 50% | 25 |
| 80% | 32 |
| 100% | 36 |
| 110% | 38 |
The TX750 won't be a great fit if your goal is to create a silent or near-silent PC. On the other hand, the higher noise levels generally correspond directly with airflow, so this PSU should help reduce temperatures in your PC, which is especially important for SLI or CrossFire setups. We would still like to see less noise at low loads, since 75W output means there shouldn't be much heat to deal with. As usual, the fan rotates at full speed during overload and is close to 40 dBA. Most computers should not reach this level, but it is good to know that this PSU is still not the loudest one—we have seen worse results on other PSUs.
Efficiency and PFC
| 115VAC, 60Hz | ||
| Load | Efficiency | PFC |
| 10% | 79% | 0.926 |
| 20% | 85% | 0.950 |
| 50% | 86% | 0.980 |
| 80% | 84% | 0.988 |
| 100% | 84% | 0.991 |
| 110% | 83% | 0.992 |
| 230VAC, 50Hz | ||
| Load | Efficiency | PFC |
| 10% | 81% | 0.890 |
| 20% | 86% | 0.924 |
| 50% | 88% | 0.930 |
| 80% | 87% | 0.955 |
| 100% | 85% | 0.973 |
| 110% | 84% | 0.975 |
Note the difference the power grid makes.115VAC means higher current and more stress for all power supplies, while 230VAC shows a worse power factor at all loads. Nevertheless, 0.890-0.975 PFC is very good and most users will find 86-88% efficiency more than sufficient. While it doesn't quite make 80% efficiencey at 10% load, it is a good 80 Plus Bronze PSU for sure. With a low input voltage power factor is always over 0.90.
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32 Comments
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mfenn - Monday, May 16, 2011 - link
The review really seems to jump into things with no intro.JarredWalton - Monday, May 16, 2011 - link
I thought I had copied over Martin's text from the front page summary, but I apparently didn't. It's not on the first page.quiksilvr - Tuesday, May 17, 2011 - link
I hate to be a grammar Nazi but please change the title. How can something be new AND improved. It's either an entirely new product or an improved or upgraded version of its predecessor.JCheng - Tuesday, May 17, 2011 - link
It's a newly released iteration that improves upon the previous iteration.Etern205 - Wednesday, May 18, 2011 - link
It's "new" as it just came out and "improved" since this is marked as version 2.Stop nitpicking.
veri745 - Wednesday, May 18, 2011 - link
And stop ripping off George Carlin...quiksilvr - Wednesday, May 18, 2011 - link
So if a comedian points out an oxymoron it's called ripping off? I'll keep that in mind.ekstor - Thursday, May 19, 2011 - link
Technically, you're not actually pointing out a grammar issue.Mathieu Bourgie - Monday, May 16, 2011 - link
I quickly read the article, but I didn't see any mention of how well the TX750 V2 does compared to the its predecessor, the TX750?What are the pros/cons of going with the V2 compared to the original?
Otherwise, great review, thanks!
ymetushe - Monday, May 16, 2011 - link
Same here. I was really looking for some comparison to the TX750 "V1", the original one.