VA0 With ReDream PSU GDEMU Question

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Sisee
shadow
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VA0 With ReDream PSU GDEMU Question

Post by Sisee »

My Dreamcast is a VA0... I think.
It's a Japanese model with the heat-pipes and the Extension module is not a modem or BBA, just a "Termination" unit according to the PCB inside it.

I have already installed a ReDream PSU from Rexus.
I have also mostly been using my console with a Terraonion M.O.D.E. installed too.

My question is regarding the supposed required resistor array mod that is recommended for VA0 consoles when installing a GDEMU.

Is it necessary for me to do that, given that I have the ReDream PSU installed?

So far as I can tell no damage has been caused to my M.O.D.E. using it in a VA0 console.
Although I have never used the original PSU with the M.O.D.E. installed, and don't plan on putting it back inn either.

I use my M.O.D.E. shared between this Dreamcast, my Saturn as well as my PlayStation.
However, I was looking to have a more permanent ODE installation for all three at some point, as although the M.O.D.E. is compatible with all three; I am conscious of wearing connection that weren't intended to be messed around with repeatedly.
I'd order a M.O.D.E. for all three, but the cost is quite substantial and if I can use a GDEMU instead it would give me the exact same final product I am looking for at a fraction of the price.

To clarify:

Can I simply drop a GDEMU in my VA0 Dreamcast which also has a ReDream PSU without having to replace the resistor arrays without damaging either the console or the GDEMU?

If not, then I may have to consider my options in regard to a permanent ODE for this console a little more.

Thanks in advance.
Prepare for trouble...

User avatar
Sisee
shadow
Posts: 7

Re: VA0 With ReDream PSU GDEMU Question

Post by Sisee »

Disregard my above question entirely.

After looking into the subject more, I now know that the compatibility of the GDEMU is because of the power from the connector being a higher voltage on the VA0 consoles on certain pins.
And that's why the resistors need to be replaced, to bring it down to the same as the later model VA1.

The lack of mention of the voltage difference on any product pages selling the GDEMU is why I assumed it was something to do with the stock PSU like the overheating issue when not using the 12v line.

I do have a follow up question though, if someone knows the answer...

Is there a mod for the GDEMU board itself that will make it safe to use with an unmodified VA0?
As in a resistor added/replaced on the GDEMU that will reduce the voltage it gets from the connector to a safe level.

I'd rather take a soldering iron to a £40 GDEMU than have to do so to my console.
I have confidence in my skills, but accidents happen and I'd much prefer risking loosing £40 over replacing my console.

If not, then I think I'll just have to get another M.O.D.E. unit, as the cost of a VA1 console and the GDEMU at current prices would be around the same or more.

Thanks.
Prepare for trouble...

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