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In Reply to: RE: cics's "Please switch to new 32nm technology (Intel Core i3-530, ...)" posted by Mihaylov on September 16, 2010 at 13:58:08
Mihalov,
Are you still using the PicoPSU-based power supply or did you go to a fully-linear one like your associate's?
Has your associate with the fully-linear supply switched to the 32mn tech boards? If so, did he have to do anything special to get his supply to start the new board?
TIA!
Greg in Mississippi
Everything matters!
Follow Ups:
Greg, in the near future I am going to replace picoPSU with the linear power unit which is giving out voltages +3.3 V and +5 V (as I already wrote the voltage -12V is not required for the system board start and +12 V already is available). It will be the toroidal power transformer of 60 VA with two secondary windings with 6 V on everyone and the printed-circuit board with diodes, capacitors and regulators on heat sinks.
In particular the possibility concerning easy changeover picoPSU by a linear power unit has induced me on platform change.
My friend has not passed to a new platform yet but any changes in his linear power unit is not necessary as I already wrote .
I have replaced picoPSU with the linear PSU as I wanted. But the new system board is not started without delay of signal Power OK (grey wire) (with Pico PSU is OK!). Therefore it was necessary to use a delay circuit.
Thanks for the circuit.
Could you please tell me how you implemented the monitor on/off on the volume knob.
Excuse me but the circuit was not saved unfortunately, and it is difficult to restore it in accuracy since it was changed during customization.
Here is the circuit for monitor off/on by sequential push the volume knob on the front panel.
Edits: 11/01/10
Thanks but there is a problem with your image.
Now it's OK.
Mihalov,Thanks for the info. That sounds like it will be a great-sounding power supply. What regulators do you plan to use?
One thing I have been meaning to ask of someone who has the new motherboard... these new Gigabyte boards have the dual-bios setup like the GA-G31M-UD2H board I've tried. One thing that it did that made the startup a little more complicated was that it started up, then stopped, then started again after about 10 seconds (you could see it do this by the flashing on and off of the LED's on the board and on the PicoPSU).
Does the new H55M board do this too?
TIA!
Greg in Mississippi
Everything matters!
Edits: 09/18/10
I am going to use my favourite regulator LT10xx-adjustable version (LT1084CP) for +5V and LM1085IT-3.3 for +3.3V.
My new system board starts also as well as previous, i.e. pressing the button on the front panel, the pause about 4-5 seconds, LED lights up over the button (an accessing to a hard disk), approximately in 3-4 seconds the screen with POST turn on.
Just to be clear...
Your "revised" plan has:
P4 module:
(+12V) regulator LT1083CP
P24 module:
(+3.3V) - regulator LT1085IT-3.3
(+5V) - regulator LT1084CP
(+12V) - regulator LM1085IT-12
-12V not necessary
Toroidal power transformer 60 VA with ONLY two secondary windings at 6V for +3.3V and +5V.
(Originally you had toroidal power transformer 100 VA with four secondary windings at 5-6V for +3.3V, at 6-8V for +5V, at 12-15V for 12V and 12-15V for -12V.)
Peripherical module:
(+5V at 3A) - regulator LM1084IT-5.0
(+12V at 2A) - regulator LT1083CP
Could you please confirm it.
Eventually, as I am not so technical, let me know exactly where the differences are between the two.
Thanks
Look here http://www.audioasylum.com/forums/pcaudio/messages/7/72756.html and here http://www.audioasylum.com/forums/pcaudio/messages/7/79532.html please.
(I used now the alternative decision of PSU is the so-called hybrid supply, which basis PicoPSU 120, providing all necessary voltages for socket P24 (P20) from entrance voltage +12 V).
This is the photo of my old platform (but the psu remained the same so far).
Edits: 09/22/10 09/22/10
Thanks for your detailed reply.
Sorry I got confused between your system and your friend's uncompromising ATX linear supply.
This is the one I am interested in.
Does the PDF file of the full linear PS at cMP's site still stand or do you have any revision for it?
I do not know yet. It is possible to make the new revision without the voltage -12 V. Nevertheless it is desirable to have practical acknowledgement of working capacity of such version. Though I do not doubt it.
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