HELP: Antec Veris Elite power issue - need some advice on confirming the pin wiring

[howardb]

Hi all,

Managed to finally get all my mini-ITX HTPC components together over the last few months and busy putting them all together - everything is done and OS installed, the only exception is my Antec Veris Elite VFD/remote module - it's installed per the instructions, however the system will not power on when the required feed line from ATX power connector is plugged in (when unplugged the system boots normally) - I have been battling for 2 days to try and trace the problem and have determined the following, and need an electronic wizard to confirm:

The power feed line is a 3-pin connector for the VFD module with the following power cables, and it can only connect one way to the VFD module connector:
- Red = +5V (5VDC) -- 5V_CHECK connector
- Black = ground (COM) -- GND connector
- Purple = +5V Standby Power (+5VSB) -- PWR connector

The left connector is the 3-pin on the VDF module clearly showing the coloured pin assignments (left to right: 5V_CHECK / GND / PWR) :

The VFD module also came with an ATX extender cable like this, with the above power feed line connected to pins 6 (red), pin 7 (purple) and pin 9 (black):

If I look at my PSU's 24-pin atx plug from the pin-side view, the pin assignments are per the normal as follows for pins 1-12:
Pin 1 is orange
Pin 2 is orange
Pin 3 is black
Pin 4 is red
Pin 5 is black
Pin 6 is red - this seems correct on the VFD power feed line - 5V_CHECK
Pin 7 is black - this is purple on the VFD power feed line - should it not be the black line for GND?
Pin 8 is gray
Pin 9 is purple - this is black on the VFD power feed line - should it not be the purple line for PWR?
Pin 10 is yellow
Pin 11 is yellow
Pin 12 is orange

Here is the atx extender connected in line to see the pin differences

So if pins 7 and 9 are not connected to the correct atx/power line could this be causing the issue? In my mind the power feed line is then pulling 5v on the ground line and grounding the 5v standby power? Shouldn't I be smelling burning if these are incorrect?

If this is the issue, why would Antec do this for an out the box solution. I've googled the issue and only found one reference wich was not very insightful - Antec haven't responded yet so putting out here for comments/suggestions from the gurus.

 

[Off-The-Chart]

your reasoning looks and sounds right

would have said, maybe no burning because the GND (Black) from PSU isn't sending more power to the Module's side (Purple)...

like if you were to connect a 12V from PSU to a 5V from a unit (fan controller ie)

but not sure how the SB power works so can't say how it affects the GND on the Module

I am sucking really hard from my thumb so will be interested to see what the gurus reply

note, if you planning on switching them around, maybe just take a before pic as proof if something happens and you wanna get replacement from Antec

 

[KhoisanX]

Have you measured the voltages at the three pin connector?

 

[howardb]

Thanks for the replies guys. Managed to get a multimeter to test.

@ Off-The-Chart - taken a few pictures just in case - will try moving the pins on the extender cable during today. I just hope that the VFD module is not blown from the incorrect voltage going through it via their supplied cable...

@ KhoisanX - the voltages measure as follows at the 3-pin connector, assuming that pin 7 should be the ground (i.e. the purple wire on the feed line:
- purple wire as ground - red wire shows 5.05v
- purple wire as ground - black wire shows 5.09v
- black as ground - red wire shows -0.03v
- black as ground - purple wire shows -5.09v
- red as ground - black wire shows 0.03v
- red as ground - purple wire shows -5.05v

Using Pin 5 of the ATX connector as the 5V GND point, the 3-pin connector shows the following voltages:
- red = 5.06v (seems correct)
- black = 5.09v (should be 0.00V imo)
- purple = 0.00v (should be 5.09v imo)

This pretty much confirms in my mind that the ATX extender supplied by Antec is not wired correctly at all, meaning that 5.09v is going to the VFD module GND pin, instead of to the 5V_CHECK pin.