Well...it looks like I should have went with my first plan. Instead of going and purchasing a used DG33M03, thinking(incorrectly as it turns out) that I was getting an Inspiron 530 mobo that will run quads.
DG33M03 runs quads = Yes(most likely, testing in progress).
DG33M03 is for an Inspiron 530 = No(not the one I got at least). As it turns out, the DG33M03 I got was for a Vostro 400. So I flashed the modded bios for the Vostro 200, from
the other thread. Which worked just fine. Now after trying for 2 days to get the internet(intel network adapter) to work on the thing, unsuccesfully, I'm just about to try seeing if it will run the X5470 I also just purchased. But, until then, here's what I've learned so far...
Vostro 400 DG33M03 can use the modded Vostro 200 G33M02 1.0.16 bios(flashes and runs without issues)
Vostro 400 DG33M03 will not even flash the modded bios, 1.0.18, for the Inspiron 530(no surprise to me of course)
The differences between a G33M02 and a DG33M03, hardware wise, are what limit anyone from running quads on a G33M02. The G33M02 does not have the necessary components to power quads. It might be moddable to allow for it, but I doubt it. Even if you could get it "wired for power" correctly. Not likely anyone's got the time for that though. I know I don't. Anyways, no bios mod will EVER let you run quads on a G33M02. That much I GUARANTEE(proof to follow shortly).
More to come soon...
Part 2
Here's some shots of the difference between a G33M02 and a DG33M03. Notice the number of transistors(red dots), and capacitors(green dots). The DG33M03 has
12 transistors and
7 capacitors in the CPU VR circuit. Where the G33M02 only has
6 transistors and
5 capacitors. That's the real reason a G33M02 will
NEVER run any quad-core CPU, because it's missing half of the transistors(and/or the circuitry to allow for 12 of them). And it would likely need those 2 additional capacitors as well, for the higher wattage quads at least.
EDIT: I added the cropped pic of the Foxconn G33 mobo(from their site) that they claim runs all quads ≤ 130W. Which shows that it too has
12 transistors and
7 capacitors.