want to get dms4 se pro but i have some questions

[hakz]

received the matrix infinity, still no ps2 received yet.

I should use 30awg kynar for the whole mod? I read somewhere that the ground and 3.3v should use a larger wire, is this true?

Thanks

[lufcfan]

Hi there,
As the Matrix Infinity only draws 3.3v for power, 30AWG Kynar can be used for the +3.3v wire. As for the ground wire, it would be advisable to link this pad directly to a ground surface on the board as opposed to linking it with a wire. It not only anchors the chip in place a lot better, but also provides the shortest path to ground. Any exposed golden edge around the edge of the board can be scraped back and the ground pad linked there.

To do this, tin the pad on the chip, scrape the lacquer back on the motherboard edge and place a small amount of solder in a spot on the exposed area. Then, tape the chip in place so the ground pad and the small spot of solder on the edge of the board line up. Now, add small amounts of solder onto the spot at the edge of the board until the spot becomes level with the GND pad on the chip. With your soldering iron, simply tease the solder across to bridge the gap (add a small amount of solder if necessary). You should find that a neat solder bridge forms between the 'GND' pad on the chip and the edge of the motherboard. This is by far the best way to connect the chip to ground. (If you need a picture to show you what I mean, I can show you one).

As I say, 30AWG kynar is perfectly fine for the rest of the install including the power line...

Hope that helps...
LUFCfan

[hakz]

could you please show me a picture, I'm having a hard time imagining what it would look like

[lufcfan]

I took a picture from one of my Infinity installs to show you what I mean. Note the GND pad - that's what it should look like when completed.

P.S.: You may also want to check your Infinity against the one shown. The one above is a genuine Infinity chip - if it doesn't look like that, it's a clone (so don't install it). Just a quick tip

[hakz]

The chip is the same.

That looks bloody awesome. I don't think I can do a mod that good. My only soldering practising I have, I soldered together a digg button electronic kit. a strobe like electronic kit and a psone console with the aladdin one chip.

I think i'll be ok though. you used a glue gun right? I presume its safe to use in a pcb, I think I'll just use electronic tape to make my wires look neat like that.

tbh after seeing the picture I'm kinda scared to try that gnd method lol. I understand your method now that I have seen the picture though.

[lufcfan]

You'll probably be OK as you say.

Yeah, that's hot glue and it's perfectly fine to use on the PCB of the PS2. Electrical tape is fine too.

The tip to get wires like that is actually very simple. Place your chip in the correct position on the motherboard (between the 4 copper ground pads at the far end of the board on slim PS2s or between the BIOS and drive controller (LB/BA chip) on older 'chubby' models. Solder all wires directly to the points shown on the diagram obtained from the mod suppliers website and leave them quite long (but don't connect them to the chip yet!) Now if you look at the board, you'll notice 2 or 3 main groups of wires (BIOS, C/DVD Controller and PSOne BGA wires). All you do, is group these wires together and lay them out 'IDE Cable style' and tape or glue them in place. Once they're bunched, its easy to group them, bend them into the appropriate place. The points on the chip are designed so that when you lay them out in this manner, the wire on the inside goes to the first point and the outside wire to the last point - and eventually looks like mine above.

Give it a go, take your time and I think you'll be pleasantly suprised with what you can do...

[hakz]

Hi, I got a diagram from the matrix infinity website. The solder trick you showed is on a slim ps2? I don't think you can do that on that version ps2. Also, on the diagram, it shows a point called the scex point, what is that referring to?

http://bayimg.com/jAbhFaABL