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From my search, I have not found another DC-ATX converter that is convincingly better. This means I have placed an order for the HDPlex 300W-HiFi-DC-ATX converter based on the recommendation of many. My mATX motherboard will require a high current 5V, 3.3V and 5V standby rail in addition to possibly another legacy rail and so Paul Hynes has told me that I will not be able to use my SR7 to directly power these rails without a DC-ATX converter.
HD PLEX MAC
This should be a significant advantage over my Mac Mini and hopefully will help negate some potentially serious disadvantages. I can power the CPU directly with a 12V lead from my SR7. One slot will be used for my Intel dual LAN card and the other slot will be used for my SATA to PCIE card where my OS drive and one of my data drives will connect.
![hd plex hd plex](https://i.ytimg.com/vi/3HJzNHeqbcQ/maxresdefault.jpg)
All the other buses must go through the Platform Controller Hub to access the CPU. These slots have the same low latency access to the CPU as RAM. Two PCIE 3.0 slots that allow the most direct access to the CPU that is possible. Quote:So it would seem that moving up to this larger microATX ASRock motherboard will bring with it both good things and bad but hopefully, the positives will outweigh the negatives. I have my own plans to use a Paul Hynes to power a HDPlex DT-ATX converter but perhaps that is overkill when the DC-ATX converter has so much ripple but low impedance may still be a very good thing. Some fun reading regarding PSU for computers. I know the power conditioner is trying to suppress noise on the mains, but the methods frequently used actually increase the impedance between outlets thus increasing the noise from leakage loops. Since a leakage loop goes through the AC main the higher the impedance in the mains side the higher the noise voltage generated between the boxes. Quote:Contrary to all "it makes sense to me" thoughts on the subject the way cut down on leakage loop noise with the DAC and pre/power amps is to have the tightest coupling you can get in the AC domain. Sometimes I feel that people use powerconditioning without knowing what problems they perhaps have and a seperate powerline can perhaps be the first thing to do and is low in cost compared to many poerconditiners. The problems sometimes got even worse with some powerconditioner that uses coils as the impedance was even greater after that so the distorsion got even higher.
![hd plex hd plex](https://i.blogs.es/c1c4ff/hdplex-h1/original.jpg)
In one of the Swedish forums we did some tests and measured the connection between high impedance on the powergrid and high distorsion on the powergrid, the higher the impedance was the more distorsion was present. This was my thread of installing the new powersupply to my hifi but intrest was very low. To me this was a big step in getting better sound and now I want to make it even better with proper PSU and computer/network solutions. I read alot on Computer audiophile and long before such things regarding low impedance between power outlets came up I did that got rid of my Isotek and got a Ansuz D8 that has no components in the way of the power and star grounding, installed a seperate powerline from the meterbox outside of my house and just use XY condensators and varistors to filter out garbage before the power goes in to the D8 powerbar. That whole thread is very worthwile to read BTW as it touches many important topics. Not saying this as a Hynes fanboy but objectively based on published specs and many recommendations/experiences of others and my own.Īlso see this (I coincidentally just read this):
![hd plex hd plex](https://smallformfactor.net/wp-content/uploads/HDPLEX-160W-DC-ATX-new-installed-top.jpg)
Of course there's more than noise specs alone but the previous HDPlex put out 20-30mV (millivolts) of ripple and noise according to his own reports. While these HDPlex supplies are better than most standard SMPS PSU's they won't even come close to the Paul Hynes stuff. (1, 12:00)Antoine Wrote: It isn't specified for this one but previous HDPLex PSU's (I still have the original 100W myself) use the LT1083 regulators.