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Building a DIY Music Server


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52 minutes ago, AME said:

 

It was a lot of handwork, but I quess a lot can also be done with an computer controlled milling machine.

I will drop an email to Larry from HDPlex to see if he is interested.

 


Definitely send a mail to Larry. A while back he said he couldn’t do it due to lack of time and commitment. If you have a blue print, he might be interested in taking it forward. Let us know what he says.

 

btw, very nice build. Many over here are interested in similar builds but due to lack of chassis and cooling, it hasn’t moved very far.

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just my 2 cts; this is a DIY thread...Surely it should be possible to come up with something really good for like at least a third or less of the prices mentioned. I just ordered a couple custom 400H [email protected]0mA in HiB cut core for my tube amp project, there are folks out there who make stellar stuff.

 

"All" we need is a tranny maker who knows what he is doing (not being sexist but I have yet to encounter a female transformer maker ;-) ), someone savvy in PSU design, a couple of decent Schottky's, a choke or two, some great capacitors and plenty of 'em, some power wire and most of all decent connectors (I'd prefer solid pure copper rather than crazy coatings that all have a sound to them) and a case (my pref is no metal). The beauty is, all can select most components to their liking and spec to needs.

 

 

ISP, cat8.1, Zylix switch, Finisar <1321>Solarflare 8522, AMD 7, Aorus X570 Elite, Corsair AX1200i, 8Gb Apacer Ram, Pink Faun I2S OCXO on LPS, home grown RJ45 I2S cable, Metrum Amethyst (modded to accept I2S), Klangfilm 204a, Klangfilm Trionor (3Tesla 835, JBL2402)

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5 minutes ago, MarcelNL said:

just my 2 cts; this is a DIY thread...Surely it should be possible to come up with something really good for like at least a third or less of the prices mentioned. I just ordered a couple custom 400H [email protected] in HiB cut core for my tube amp project, there are folks out there who make stellar stuff.

 

"All" we need is a tranny maker who knows what he is doing (not being sexist but I have yet to encounter a female transformer maker ;-) ), someone savvy in PSU design, a couple of decent Schottky's, a choke or two, some great capacitors and plenty of 'em, some power wire and most of all decent connectors (I'd prefer solid pure copper rather than crazy coatings that all have a sound to them) and a case (my pref is no metal). The beauty is, all can select most components to their liking and spec to needs.

 

 

 

What about voltage regulation? You know that the motherboard shuts down when any of the voltages is out of the acceptable range, right? Again, this is not a tube amplifier. 

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I am acutely aware this is not a tube amp, no need to repeat that. Regulation may well be needed, it can be done in a few ways; ranging from good old LM317AT/78XX like devices to much fancier newer stuff, OR if current consumption is more stable in a much simpler manner. For me that part is under the jurisdiction of the 'someone savvy in PSU design', and likely knowing what a MB does and needs. Do most MB regulate voltage as well, if so within what limits? I think many do but I lack the detailed information. 

ISP, cat8.1, Zylix switch, Finisar <1321>Solarflare 8522, AMD 7, Aorus X570 Elite, Corsair AX1200i, 8Gb Apacer Ram, Pink Faun I2S OCXO on LPS, home grown RJ45 I2S cable, Metrum Amethyst (modded to accept I2S), Klangfilm 204a, Klangfilm Trionor (3Tesla 835, JBL2402)

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@MarcelNL - I never had to moderate this thread before... You've registered a month ago and have 94 posts. 91 of them are in this thread. I haven't found a single one of your 91 posts useful so far. And many of them have negative effect. 

Every time I post a reply, I think if my post would be useful in some way. If it's not I keep the thought to myself.

May I ask you to do the same going forward? Or perhaps start a new thread with your ideas? 

 

I don't want the people reading this thread to be misled by some of your suggestions or ideas that are simply wrong. I have to put a lot of time and energy trying to explain why point to point soldered motherboard / CPU would not work, or why a completely unregulated power supply like the one I have on my tube amplifier would not work to power the CPU of my motherboard. There are engineers laughing at these ideas (or crying). And there are people who don't know how these things work and get confused. You are doing a lot more harm than good with these posts. 

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Please don't feel the need to start to moderate, I'll moderate myself given the fact that questions seeking more fundamental answers don't seem to resonate.

ISP, cat8.1, Zylix switch, Finisar <1321>Solarflare 8522, AMD 7, Aorus X570 Elite, Corsair AX1200i, 8Gb Apacer Ram, Pink Faun I2S OCXO on LPS, home grown RJ45 I2S cable, Metrum Amethyst (modded to accept I2S), Klangfilm 204a, Klangfilm Trionor (3Tesla 835, JBL2402)

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14 minutes ago, Nenon said:

I have to put a lot of time and energy trying to explain why point to point soldered motherboard / CPU would not work

 

2 minutes ago, MarcelNL said:

Please don't feel the need to start to moderate, I'll moderate myself given the fact that questions seeking more fundamental answers don't seem to resonate.

 

wow....seriously ? are you aware of something called SI ? and there are dedicated SI engineers employed by companies who does high speed digital design ?

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I believe I should have used a smily when I wrote that.

ISP, cat8.1, Zylix switch, Finisar <1321>Solarflare 8522, AMD 7, Aorus X570 Elite, Corsair AX1200i, 8Gb Apacer Ram, Pink Faun I2S OCXO on LPS, home grown RJ45 I2S cable, Metrum Amethyst (modded to accept I2S), Klangfilm 204a, Klangfilm Trionor (3Tesla 835, JBL2402)

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1 hour ago, MarcelNL said:

Regulation may well be needed, it can be done in a few ways; ranging from good old LM317AT/78XX like devices to much fancier newer stuff,

 Let's not take this further off topic, but many may have forgotten about this series of high current Voltage Regulators which could make life easier in some DIY PSUs and is quite cheap as well.

The LT1083 is capable of 8A minimum and 9.5A typical, current limited.

https://www.ebay.com.au/sch/i.html?_nkw=Lt1083&norover=1&mkevt=1&mkrid=705-155026-118992-7&mkcid=2&keyword=lt1083&crlp=433530097562_&MT_ID=584886&geo_id=32586&rlsatarget=kwd-1429439472&adpos=&device=c&mktype=&loc=9072206&poi=&abcId=1140676&cmpgn=1746483731&sitelnk=&adgroupid=67873361989&network=g&matchtype=p&gclid=CjwKCAiAxeX_BRASEiwAc1QdkZ9nGrpEI7qDmvmBKO_GEWdyFQxUP3gOF7BRqYQWblwTJ4G7FXMYdRoCDP0QAvD_BwE

LT1083,4,5fg.pdf

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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Just now, sandyk said:

that is indeed the sort of device I had in mind when I wrote what you quoted, it's just that it's max rating at 7.5 Amp may not be enough to cope with high currents (unless these reported peaks are really very brief transients), the reason I referred to a PSU design specialist.

ISP, cat8.1, Zylix switch, Finisar <1321>Solarflare 8522, AMD 7, Aorus X570 Elite, Corsair AX1200i, 8Gb Apacer Ram, Pink Faun I2S OCXO on LPS, home grown RJ45 I2S cable, Metrum Amethyst (modded to accept I2S), Klangfilm 204a, Klangfilm Trionor (3Tesla 835, JBL2402)

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HELP please

 

I mentioned a month or so ago about my mother board going down, having rebuilt the server  the MB has expired again!!!

 

I have now completed a totally new build to match the PH SR7 T power supply. The first MB went a while after replacing the HDplex 400w ATX (had about 8 months use) with the 800w ATX, it lasted  2 months. The second MB was installed in Oct 2020 and went just after Christmas, this failure also knocked out the amanero board on my DAC.

 

I am now wondering if the HDplex  800w might be causing the issue, the voltages are slightly high 5v is 5.27 and 12v is 12.3. 3.3v seems ok. Don't know if this is a problem, would be grateful for any advice.

 

Have put the 800w into the new build - photos below. It is running fine at the moment, but for how long?

 

 

server 2.jpg

server 3.jpg

server 2.jpg

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The 5V rail is too high and for long term reliability should be closer to 5V

I would contact the manufacturer to see if it is possible to reduce this a little.

Incidentally, the specifications for most +5V voltage regulator I.C.s (LM7805 etc.) are also 4.75V to 5.25V 

 

ATX

PSU Tolerance Table
Voltage Rail Tolerance Minimum Voltage Maximum Voltage
+3.3VDC ± 5% +3.135 VDC +3.465 VDC
+5VDC ± 5% +4.750 VDC +5.250 VDC
+5VSB ± 5% +4.750 VDC +5.250 VDC
-5VDC (if used) ± 10% -4.500 VDC -5.500 VDC
+12VDC ± 5% +11.400 VDC +12.600 VDC
-12VDC ± 10% -10.800 VDC - 13.200 VDC

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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12 minutes ago, ASRMichael said:

Sound great! Question from the non technical minded! 
 

How would one like myself be able to integrate this with my existing SJ LPS rails for ATX & EPS?

Good question.

 

This device should be a drop-in replacement for your HDPlex 400w/800w DC-ATX converter from the sound of it.

 

@Nenon ,Did you also power CPU EPS through your new DC-ATX converter?

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1 minute ago, Exocer said:

Good question.

 

This device should be a drop-in replacement for your HDPlex 400w/800w DC-ATX converter from the sound of it.

 

@Nenon ,Did you also power CPU EPS through your new DC-ATX converter?

That’s the thing. I don’t use DC-ATX. Direct from SJ to ATX & EPS

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2 minutes ago, ASRMichael said:

That’s the thing. I don’t use DC-ATX. Direct from SJ to ATX & EPS

Ah!! You may not need this device then. Now I too am curious.

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