VoltageMod V5 - Werübersetzt ?

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guck auf seite 2...da is ne englische übersetzung wenn ich mich net täusche

Jup, ist da: [Seite 2]

Ich quote das Mal:

Zitat

Here is a translation for english-speaking people.
Some posts have been cut in some part or summarized, but I kept the most important things together.
Pardon me if some technical terms have been incorrectly translated.

VSA: I found that RAM and GPU chips are 2.8 volts powered, that means 0.2 volts more than a V3. The voltage has been taken on the chip in the lower right corner of the card. I think taking the voltage to 3 volts can let the v5 reach 200mhz stable. Considering that 181Mhz and an XP2.4 Ghz (170mhz bus) means 3249 points at 3dmark 2001 (without 3D Analyzer), I think we can get to 4000 this way.

Toxicwaltz: How to raise it?

VSA: The mosfet on the lower right corner stabilizes from 3.3 to 2.8. I am now studying the regulation circuitry to take the voltage to 3 volts. I will let you know after some testing.

VSA: Yes, I done it. This evening my VSAs have done a 3dmark01 cycle @ 190 mhz, powered by 3 volts. Obviously heat becomes higher. I got 3460 points without 3d Analyzer or any kind of optimization. It looks good though. If only I could have a lucky card in my hands, the 4000 points became nearer. I'll try. If it looks stable, I will make the final modification.

VSA: 2 news: the bad one is that 3460 points were taken in 16 bit mode (consider that I even reached 3600 in 16 bit mode), while in 32 bit mode I got 3000 points at vsa default clock (166) and 3300 points at 190 mhz; the good one is that the modification works. Both VSAs work flawlessly at 3 volts. RAM chips are still powered at default voltage (3,3). I'll let you know as soon as things evolve.

VSA: Here I am! The overvolt has been made first on v3 3000, with great results: from 183 I could get 200mhz, from 2.6 volts to 2.8. The scheme of the operation was found somewhere on the net. Regarding v5, we don't have any scheme.
Last night I got the idea... the risks... and the challenge. What follows has been tested on MY voodoo, one of the first models, original bios 1006, and I HAVE NO RESPONSIBILITY IN ANY CASE IF YOU TRY THIS AT HOME WITH YOUR VOODOO AND GET IT BURNED. So, keep in mind the risks...

1) Cooling: take good care of it. I have heatsinks on ram chips and some well-cut heatsinks on the back of the core of the VSAs, and sure they help. The GPUs have been cleaned from glue and made smooth, polished, because I realized they had a concave shape. I put two thin copper sheets (1,5mm) on them, and then I mounted again its original heatsinks and fans, using artic silver and keeping them all pressed with the original brackets. A power supply fan could help, though. Here is a pic of the rear side of my card:
[Blockierte Grafik: http://www.forumzone.it/public/uploaded/Glide/2003922202941_2003917175917_Fig2.gif]

2) VSAs are 2,8v default powered. I reached 3 volts, but maybe we can get to 3.2 too, risks becoming higher and higher... anyway, the voltage can be regulated using a 47k trimmer [I don't know the technical English word for "multigiri": altavista calls it a "multi-turns trimmer" ], but a normal one could do the job anyway. That's all you need.

3) RAM is already 3.3v powered, thus the overclock will be made only on the vsa. Nothing stops me to raise the RAM voltage in a near future, but this time we'll concentrate our efforts on VSA only.

4) AGP 3.3 voltage is only needed by RAM, in primis. If we think to mount the V5 on a AGP8x board, we could cut off the 1.5v pin (useless) and insert an external power supply to power the card. Where could we insert it? The voltage coming from the agp slot ends up to the mosfet on the lower right of the V5, and powers the RAM through internal tracks (connections are not visible from the surface). If we change the voltage in that point, we could change RAM voltage too. This means we could overvolt the RAM directly from the BIOS, if the mainboard allows to modifiy the AGP voltage.
[Blockierte Grafik: http://www.forumzone.it/public/uploaded/Glide/2003922202958_200391718154_Fig3.gif]

5) Studying my voodoo I found out the reason why it is so long. It could not be smaller, because it has been made with so much love from 3dfx engineers that the tracks layer is a REAL masterpiece of optimization. Micro-stiffness [another altavista translation] are everywhere, in order to prevent not-intentional-oscillations [again ] and instability. I can now only laugh out loud when looking at my son's Gef2mx400...

6) While making the VSAs work at 3 volts, I've been impressed by their great stability, no visual artefacts at all. The 3dmark01 dragon: can you tell you see it clear at 180-185 mhz? Are you sure? I am. Unreal 2 looks better too. VSAs are stable and they fail not. If we want, we could change the "filter condersers" [made in altavista ] with bigger ones, in order to have a "clearer" power supply (modding no limits).

7) Back to the voltage modification: to connect the 47k "multi-turns" trimmer we have to remove one resistor, which is located on the upper right corner of the card, near the power connector, where you can clearly see 3 resistors in line. It is the third one if you start counting from the molex; in other words, the latter to the right. You can control its value with your tester (it should be a 17-18k resistor). Well... remove it and solder the 2 wires you are going to connect to the trimmer. Mind to regulate the trimmer in its middle position, before powering up the card. This helps you keeping the power under control: it will be you, then, to decide the very moment of FIRING.

Photo:
[Blockierte Grafik: http://www.forumzone.it/public/uploaded/Glide/2003922202923_200391718414_Fig1.gif]

Graphical scheme:
[Blockierte Grafik: http://www.forumzone.it/public/uploaded/Glide/2003922203012_200391718515_Fig4.gif]

At last, connect a digital multimeter, 200v DC, black wire to ground, red wire - take care in doing this - to the last pin of the mosfet located in the lower right corner (fan side), where you should get 2.8v at default conditions. WARNING: You better test it immediately, and only then raise the voltage to 3, keeping the power under control on your multimeter. To make these operations more comfortable, you can solder a wire in this point, and then connect it to the tester.

This modification was born from an idea by vsa and has been given with pleasure to the voodoo people.
A great thank to 3dfxzone.it... 3dfx knowledge sanctuary worldwide... and to mauare for the graphics.

No, I don't want to change this card!!! ...Voodoo no limits...

Alles anzeigen

also mir is kein 5500 vmod bekannt...

aber vll findet sich mal einer

[scherz]vll klappt er ja auch mit der 6000 :D[/scherz]

is eigentlich ganz eifach... du musst nur einen widerstand (den neben dem molexstecker) durch einen regelbaren widerstand mit 47 kohm erstetzen, wie auf dem bild zu erkennen. je nach einstellung des potis kannst du dann die karte entweder normal oder ovevolted laufen lassen. ich stand mal kurz davor, sowas zu machen, habs dann aber wegen meiner geringen lötkentnisse nicht gem8..

ich werde das auf jeden Fall mal machen. Ich habe hier ne 5500, die schafft ohne Mods zu benchzwecken 196Mhz (1x 3dmark2001 run mit pausen zwischen den tests). Die macht mit dem vmod bestimmt über 200Mhz...

Und was ist mit dem Speicher? Mensch mach sie doch nicht kaputt...

ich hab genug 5500 hier. Das macht nix wenn da mal eine verreckt.

Ich würds ja mit der 5500 machen, aber die 5500 interessiert mich nicht mehr so wirklich, daher ist der Anreiz doch recht gering.

klar, richtig interessant wäre ein vmod bei einer 6000...

Aber da müsste ich schon in den USA wohnen und Gary Donovan heißen, denn wenn da mal eine 6000er verreckt, macht ja nix ;), nehmen wir eben die nächste.

Hank Semenec könnte man natürlich auch heißen.
Beziehungsweise: Er macht ja wahrscheinlich so was ähnliches, denn wie sollte er sonst eine stabile 200MHz Karte bekommen?