Power Supply Roundup: 730W to 900W
by Christoph Katzer on November 22, 2007 3:00 AM EST- Posted in
- Cases/Cooling/PSUs
Amacrox Freestyle - 750W
Amacrox is well known in the European market, providing good quality at an affordable price. The ODM (Original Design Manufacturer) is FSP, also known as Fotron Source - one of the five largest power supply manufacturers in the world. Amacrox is one of several retail brands FPS uses. The Freestyle 750 has a shiny appearance and contains a 12cm fan on the bottom of the power supply. The packaging is quite nice and gives potential buyers a good view of the power supply in retail shops, since there is a small window that allows a look at the power supply inside. Besides the standard short manual, the box also includes a bag in which you can store unused cables.
We find four 12V rails rated at 20A each, and a combined power of 725W. The 3.3V and 5V rails both provide 30A. The description Amacrox provides about which connectors are powered by the various 12V rails is a nice addition. 12V1 is connected to both of the CPU connectors in form of the 4-pin and 8-pin and ATX connectors, 12V2 handles the first two graphics cards, and 12V3 is for peripherals such as hard disks and optical drives as well as the motherboard. The 12V4 rail keeps the next round of graphics cards running.
Cables and Connectors
All cables are sleeved, with the PCI-E harnesses in orange color instead black. There are several other differences between this PSU and the other units. Amacrox has more SATA than Molex connectors attached while other manufacturers take the reverse approach. The two 6-pin and 6/8-pin PEG connectors (four total) on the 750W unit provide enough power for most graphics configurations.
Opening the unit reveals a standard FSP topology with three heatsinks. FSP uses components that won't generate too much heat, which also results in a better efficiency. The heatsinks can therefore be a little thinner and not quite as large/heavy. We'll see a similar approach in the Seasonic power supply. The Taiwan Oster Corporation manufactures the primary cap, and it seems to be a cheaper offering than what we'll see elsewhere. The secondary side uses capacitors from CapXon.
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31 Comments
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Christoph Katzer - Friday, November 23, 2007 - link
The arrangement will be changed next time ;)What about the amount of PSUs? Too many?
strikeback03 - Tuesday, November 27, 2007 - link
I like the voltage vs. load charts used previously better than the bar charts. Obviously impractical with a 10 PSU roundup, but I hope they come back for smaller articles.Would it at least be possible to keep a consistent order to the PSUs, instead of sorting by output voltage? On the 3.3V charts on page 4 for example, it's confusing to have the Hiper 730 at the bottom of the 20% chart then the top of the 50% chart.
Dayneaw - Thursday, November 22, 2007 - link
The first graph on page six seems to be missing the results of the silverstone.rickon66 - Thursday, November 22, 2007 - link
I love it when folks complain without even reading the review."Maybe you just forgot to upload the final page?"
Maybe you just forgot to read the review!!
Anyway-Good job on the review.
Talcite - Thursday, November 22, 2007 - link
Good job guys, the o-scope readings/explanations are particularly nice =D.SOLIDNecro - Thursday, November 22, 2007 - link
No "Final thoughts" or "Conclusions"???A summary report is one of the most important, if not most important part of any article, to leave it completely up to the reader to draw conclusions based on charts requires to much time and expertise for your average reader!
Also your "Editors" choice awards are invaluable, you guys are the "Pro's" and should be able to guide the reader to what you would purchase for your own rig, and why it stood out from the rest of the pack
Maybe you just forgot to upload the final page?
JEDIYoda - Thursday, November 22, 2007 - link
So whats so hard about making your own conclusion and thinking a little bit?Editor`s awards are bogus!
Grow up dude!
JEDIYoda - Thursday, November 22, 2007 - link
Editor choice rewards awards are bogus!You can read and comprehend - can`t you?
Make up your own mind!
Christoph Katzer - Thursday, November 22, 2007 - link
Just check the new arrangement. I wrote the comparison first and if somebody is interested to know more about a product he/she can check details after. The conclusion is on page 8.ChronoReverse - Thursday, November 22, 2007 - link
I find it rather confusing that way. I also thought that there was no conclusion until I read the comments.That said, I do usually read the conclusion first. Perhaps it should go back to the end and then a short abstract placed in the front?