New HDPLEX 200W LPS

[lmitche]

1 hour ago, rickca said:

I'm planning to replace Windows 10 with either AudioLinux or Windows Server 2019/AO 3.

In the past 2 weeks I've worked to convert 2 different i7-6700k z270 machines to Audiolinux. In both cases the owners described a major increase in SQ from the software change alone.

[lmitche]

59 minutes ago, rickca said:

I'd meant to provide some detail about my experience ... but I encountered a setback.  My 200W LPS went up in smoke and is awaiting repair/replacement.  It was really promising until I fried the rectifier.  I'll have to revisit the viability of my configuration with the new lower current limit on the 19V rail.  Maybe a 91W TDP i7-6700K is just too demanding for this LPS.

Rick,

 

As you know I'm really enjoying this lpsu with my 6700k machine. I've heavily underclocked this machine, turbo mode is disabled, as is almost every peripheral device. One rail feeds the processor, the other an Hdplex ATX DC to DC supply. The Hdplex 200 watt LPS runs quite cool in this configuration.

 

For a dedicated music server this combination is terrific, but as power supply for a general purpose Windows PC the 200 watt Hdplex is not going to cut it, and my dangerous as you found out.

 

Larry

[lmitche]

5 hours ago, deanorthk said:

That's exactly the setup I have started to build, a 6700K with a mini itx motherboard (Z170), and I plan to use it with audiolinux, and thie HDplex 200w for roon core, good to know it's working

 

My success here comes from a very specific configuration of hardware and software with great care taken to avoid high current demand.

 

So please be careful, you can easily overwhelm the power supply with this rig without realizing it ahead of time.

.

[lmitche]

22 minutes ago, tboooe said:

Last night I tested one of the adjustable outputs of my new HDPLEX at 12v with my end point which is just an i3 based mini PC.  I was previously using my HDPLEX 400W lps to power the end point.  The difference using the 200W lps was subtle but immediately noticeable.  To my ears, the background got a bit more black and quiet allowing me to hear more nuance and detail.  The music sounded a bit more organic and natural.  Today I will use the other adjustable output to power my switch.  The other test I want to do is compare this lps against the Uptone LPS1.2 powering my Singxer SU-1 and USB Regen.  Has anyone else compared the HDPLEX 200W against the Uptone LPS1.2?

Adding a DXPWR or MPaudio double or single lt3045 regulator(s) in serial to the lt3045 output of the new Hdplex takes things to another level. Powering the 12 volt inputs of my HDD enclosure and Startech USB card in this way lead to immediate and significant SQ increases.

 

 

[lmitche]

Just now, tboooe said:

Interesting.  May I ask which one you are using?  Also,. in order to get 12V I assume you are outputting 19V from the HDPlex.

I use both, just as Colin outlined above. Taking 15 volts from the adjustable hdplex lt3045 outputs works perfectly for dropping to 12 volts.

 

The dxpwr is limited to 1.5 amps, so I use that double regulated on the usb card. The mpaudio handles 3 amps for the 12 volt hdd drive motor.

 

The star tech usb card handles the drop from 12 to 5 volts on the usb output.

[lmitche]

18 minutes ago, rickca said:

I don't see a 3-pin XLR to 6-pin Molex among the 400W DC-ATX cables I have, nor do I see one on the HDPLEX website.

That's because I am using it here!

 

And it is indeed a 7.4mm to 6 pin molex cable. I mounted it on a pc slot blank.

[lmitche]

7 minutes ago, rickca said:

OK but that assembly is meant to go from the 200W LPS 19V to the 400W DC-ATX power input.  So how do you power your DC-ATX if you're using those cables for the motherboard 8-pin instead?

You need to ask Larry to send you one.

[lmitche]

10 minutes ago, rickca said:

Thanks, Larry.  I wasn't even aware that Alexey now offers this DXPWR line of products.

 

Is this the one you use with the Startech USB card?

http://www.ldovr.com/product-p/dxp-1a5dsc.htm

 

If so, I assume you specify 12V for output voltage.  What do you specify for the pre-regulator out if you're feeding it from an adjustable voltage rail of the 200W LPS set to 15V?

Yes the dxpwr with 15 volts in with a pre regulator at 13.5 and regulator at 12 volts.

 

Alexey is working on a 3 amp version as well.

 

The case with DC connectors is terrific. 

[lmitche]

11 minutes ago, rickca said:

Aha!  OK now I get it.  Are you running your i7-6700K full blast (91W TDP) but with turbo disabled, or have you done something in BIOS to further reduce the power requirements?  

Yes, I have done something to reduce power requirements. 😉

 

Warning - this configuration will not work for a general purpose machine and could be dangerous as power demand can easily exceed the current capacity of the 200 watt supply.

[lmitche]

1 hour ago, dctom said:

I have an HDplex on the way. Which output would be best for my NUC 7i7DNBE ?

To my ears the 19 volt fixed output sounds better then the lt3045 output set at 15 volts.

[lmitche]

31 minutes ago, tboooe said:

NUC can also be run at 12v too right?

Yes, and if you can try an lps1.2 set at 12 volts. Musicality is off the charts listening to NUCs powered with an lps1.2! Either of the fixed Hdplex 200 outputs make good energizing sources for an Lps1.2.

[lmitche]

An lps1.2 can be used to reliably power either a Celeron, Pentium or i7 NUC depending on the size and number of memory sticks and processor frequency and other bios settings.

 

This is easier done with some nuc models then others. The i7 models can be particularly difficult to setup with an lps1.2.

[lmitche]

Come on guys. Do we have to ruin another very good thread with this circular argument nonsense?

 

We have heard this all before. Please stop. We want to discuss the Hdplex 200 power supply.

 

Thank you very much!

[lmitche]

1 hour ago, austinpop said:

Nothing else attached to the converter

Like all ATX supplies, the Hdplex needs to see a motherboard or a power supply jumper before it will power up.

 

Here is what a jumper looks like:

 

https://www.newegg.com/p/2S7-000C-0A6S2?item=9SIAHBU99E8122&ignorebbr=1&source=region&nm_mc=knc-googlemkp-pc&cm_mmc=knc-googlemkp-pc-_-pla-worldwidesupermarket-_-power+supplies-_-9SIAHBU99E8122&gclsrc=aw.ds&&gclid=Cj0KCQjwjMfoBRDDARIsAMUjNZogWfO7hJW99_z42eG8t_QC5oSPWGia1Mk3rRW5x5S2VSqF6Pcv9egaApgKEALw_wcB

[lmitche]

I have been powering my Asus z270g motherboard and i7-6700k  with two external power supplies for over a year. At first two independent Sigma 11 LPSUs were used, one set at 12 volts, the other at 19 volts. The 19 volt LPSU connected to a Hdplex 400 watt DC to DC converter.  This adapter was later given to Rickca to say thanks for a favor. I had a second 250 watt DC to DC converter that is used here today.

 

My memory is that current measured on the 120 volt AC input side of the 19 volt LPSU never peaked beyond 36 watts, but that was likely not a true instantaneous peak.

 

This past winter the Sigma 11s were replaced with a single Hdplex 200 watt supply with the fixed 12 volt output directly connected to the CPU and the fixed 19 volt output connected to the 250 watt DC to DC Hdplex ATX adapter. The two lT3045 outputs are used to power a hard disk and Startech USB card via additional Lt3045 regulators.

 

The machine is set to run at a clock speed of 800mhz via Audiolinux controls. Here are the current temps with the fan disconnected and Roon server playing music. 

 

[audiolinux@audiolinux ~]$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +33.0°C  (high = +100.0°C, crit = +100.0°C)
Core 0:        +33.0°C  (high = +100.0°C, crit = +100.0°C)
Core 1:        +33.0°C  (high = +100.0°C, crit = +100.0°C)
Core 2:        +32.0°C  (high = +100.0°C, crit = +100.0°C)
Core 3:        +31.0°C  (high = +100.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1:       -273.2°C
temp2:        +27.8°C  (crit = +119.0°C)
temp3:        +29.8°C  (crit = +119.0°C)

iwlwifi-virtual-0
Adapter: Virtual device
temp1:        +41.0°C

pch_skylake-virtual-0
Adapter: Virtual device
temp1:        +35.0°C

 

The room is 80 degrees F (27 C). Six degrees above ambient is pretty good. The Hdplex supply runs close to human body temparature of around 100 degrees.

 

SQ is terrific with this server connected wirelessly to an i7 NUC.

 

This setup has been reliable and glitch free for over six months. I know of at at least three other people with an exact duplicate of this setup. Everyone is happy with the result.

 

 

 

 

 

[lmitche]

8 minutes ago, Dev said:

 

If I am not mistaken, @austinpop is using the 400w DC-DC ATX. Their requirement might be different that the 250w version but the 200w LPS should be able to power them both.

Yes both work. I used the 400 watt before sending to @Rickca. Current demand is much closer to 36 watts as mentioned above so both atx converters can handle current demand from the motherboard atx connector with lots of headroom.

 

While one could power the CPU and a GPU from the same Hdplex DC to DC converters, it is easy to see how this could take the 200 linear supply above it's rated output.

[lmitche]

On 7/6/2019 at 1:32 PM, davide256 said:

HDPLEX200 is a good "swiss army knife" starter power supply but that it will not be the stopping point for serious hobbyists 

Hmmm,  I consider myself a serious hobbyist and I am very happy with the Hdplex 200 watt in my system. Like most things, there are good applications and other applications where it doesn't work as well as other choices.

 

Based on your experience with the Hdplex 200 will you keep it in your system?  If so, how is it used?  Perhaps a diagram of your entire system would help.

 

Thanks,

 

Larry

[lmitche]

2 hours ago, davide256 said:

Audio system updated to reflect current configuration/ PS's in use

  

Unfortunately the HDPlex 12V feeding the LPS 1.2 power input just died, looks like a warranty field trip is pending. 

Thanks for the update. Sorry to hear about the 12 volt tap. Good luck with that!

[lmitche]

9 hours ago, StreamFidelity said:

 

I have described my problem to Ghent (email: [email protected]). We quickly reached a deal.

 

HDPLEX 200W Linear Power Supply
On the left are the old cables, on the right the new ones:
2 x DC42 (B) --- XLR (female) to DC (7x5.0) Canare 4S6 cable (JSSG360) => 5V / 2A will go to JCAT USB / NET FEMTO cards
1 x XLR (Female) to Oyaide DC-2. 1G Neotech 7N 16AWG copper => 19V / 10A power supply for my AudioPC

 

HDPLEX 400W HiFi DC-ATX
The old cables have been replaced by much higher quality:
A. DC input --- 7. 4.5. 0 Female to Molex-6P with Neotech 7N 18awg wire
B. 24P-24P ATX --- Neotech 7N 18awg wires with Black sleeve
C. 8P-8P CPU EPS --- Neotech 7N 18awg wires with Black sleeve

Very good quality. Everything works.

Very cool. Can you show us how you get the power into the case?

[lmitche]

I would always recommend a split power rig with a 12 volt 10 amp LPS rail powering the CPU/EPU and a 19volt 10 amp rail powering an Hdplex DC to DC ATX converter. Used this way I can't hear a difference between the 400 watt or 800 watt DC to DC ATX models.

 

The new 300 Watt Hdplex LPS handles both rails nicely and sounds great.  Caveat- I haven't tried this with high current demand up-sampling software.

[lmitche]

16 minutes ago, jean-michel6 said:

@StreamFidelity@lmitche.   Thank’s for your answers . In my server I am not doing any intensive up sampling . I run a very minimal Linux daphile os and the only job of the server is to send the music file through Ethernet to the engineered upnp player .

Therefore my supermicro X10 sdv-f card is using only 3 to 4A at 12v .

I can feed this board either through the atx connector or a 12v volt connector .

There is no eps specific 12v plug for the cpu .

 

I understand from your answers that for my set up the 400w dc to atx hdplex is probably the right choice .

My dc source is a Sean Jacobs dc3 psu .

Interesting, yes you are trading the Hdplex SMPS for the onboard SMPS. My guess is that the Hdplex sounds better, but I'd try both if possible.

 

Does your SJ LPS output >= 16 volts for the Hdplex?

[lmitche]

On 9/25/2020 at 5:01 PM, henke said:

You know ”Larry” is fony right? He is not real

 

This is nonsense. While Larry may be an anglicized version of his Chinese name, I regularly receive packages from Larry with his last name and address in California clearly printed on the label.

 

Regardless, his service is terrific and he offers some of the highest value products available.