Simply resetting the SMC does not have the same effect. I can get the system to start up by unplugging it and plugging it in several times repeatedly and eventually pressing the power button will start the system. This system has hardly ever been used and is off most of the time.Īlso, if 'Kolvir' ever got his system fixed and how he did it.Īny of you please respond. I'm going to try 'tobyglyn's' suggestion first because it makes sense. My theory is that the initial surge of being plugged in with the power with the power button being pressed at the right time is getting the power supply over some hump. There is something about catching the power supply at a good moment just after it getting power from the AC line and pressing the power button that does the trick. Simply reseting the SMC does not have the same effect. I VERY SERIOUSLY do not think it is the processor board.
The PWR SUPLY test LED is good at every step of the process with the exception of getting fans and power when I reinsert the processor board. system and when though every isolation step and never got anything definitive. I'm Apple Certified so I tore it down to min. Pressing the button again generally does nothing. I went to turn it on this weekend and there is a small initial click followed shortly by a second and final slightly different sounding click and then nothing. My MP 2009 remains off most of the time since it is just a backup. I have two towers a MacPro Early 2008 (my production system) and a MacPro Early 2009 (my backup system). and everything is a compromise.Ĭheers and good luck.I'm having the EXACT same problem Kolvir was having. Seems a little weird to me you are prepared to spend good money on linear power, when benefits can be made just using a traditional ATX powered setup?!Įverything matters.
#Mac pro power supply Pc#
Why start with a compromised PC platform? you already know your ATX setup sounds better than your mac mini? Linear power injection for your 5v sources such as USB to spdif converters, usb cards etc. either by a good ripple minimised PS or separate linear power/batteries.
#Mac pro power supply windows 8.1#
Windows 8.1 or server 2012 (very similar)Ģ4 pin powered motherboard. If you are going for ultimate sound quality, you'll need (my suggestion): although your collection will need to be in wav format. Windows in my opinion tops linux, daphile, vortexbox and OSX. I find Linux based servers to sound quite gritty through the mid frequencies.īut in my experience, daphile/vortexbox etc can sound more dynamic v's windows.īut you sacrifice midrange clarity - which is everything.
That's my next project - it can use the same linear PSU from HD-Plex as well so the entire system is under 700 bucks.
#Mac pro power supply trial#
I did find an improvement with my quiet PC build - fanless PSU, fanless CPU heatsink but with one large chassis fan.īut I suspect a linear PSU might make a difference too.Ĭlay (PDX designer) is asking me to trial Daphile (a Linux based OS that's fully optimised for music and runs a SqueezeCenter Server based server) and he's using a really cheap Celeron NUC.
So I suspect the OS makes IMHO not as big a difference. I did a comparison of Mac Mini running Bootcamp and OSX - both OS running JRiver, and I can't say there was a big difference in sound.
I think you will find your jaw will drop, as you realise just how much better music can sound away from OSX.Īgain not trying to start a debate. īorrow/Purchase a i3/i5/i7 PC capable of sse2/AVX/AX2 instructions. Without trying to start a debate on which OS is better (I am not interested in this), you owe it to yourself to try MQN player running on win8.1. The next suggestion is to try windows 8.1 for your music listening. I think you maybe surprised just how much better this actually does sound V's a small mac mini or nuc build. You are much better starting with an itx or MATX setup which doesn't use on board dc conversion.įor less than the cost of the linear power supply you are looking at you could purchase/build an optimised ITX, powered music server, powered by a very stable (minimal ripple ATX silent seasonic PS or similar) Linear power will help, but you are still converting voltages on the main board. Can I suggest you move away from the mac mini PC solution which uses onboard DC conversion.
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