V18 Modbo modchip installation diagram

The very last PlayStation 2 models used the V18 board revision. They were sold in most markets outside of Japan. Matching console model numbers and board numbers are listed below.

You can find the model number on the sticker on the bottom of the console, and the board number is printed on the PS2 main board if you take apart your console. Note that there can be multiple board numbers within a specific model number.

  • NTSC-U/C (USA):
    • SCPH-90001 (GH-071-42)
  • PAL
    • SCPH-90002 (GH-071-32, GH-071-42)
    • SCPH-90004 (GH-072-42)
    • SCPH-90006 (GH-071-42, GH-072-42)
    • SCPH-90007 (GH-071-42)

Note that there are multiple versions of the Modbo modchips available, but the installation diagrams are all the same. Some example versions are Modbo 3.0, Modbo 4.0, Modbo 5.0, and Modbo 750.

For more information about Modbo modchips click here, for more information about PS2 modchips in general click here.

V18 Modbo installation diagram

Modbo modchip pinout


V18 Modbo installation diagram (GH-071-42)

V18 Modbo installation diagram (GH-072-42)

Installation tips

Here are some tips I have for you when you are soldering your chip into a V18.

  • Using 30 AWG solid core wire works well for most of the points.
  • Use some thicker wire for the 5V and ground wires.
  • Using thinner wire for the (A), B, G, H, and I pins makes things a lot easier. 36 AWG enamel wire along with some flux and slightly pre tinning the pins on the chip seems to work well for me.
  • Make sure wherever you are putting your chip won’t cause any issues when putting the system back together, PS2 slims fit together very tightly.

Diagram success rate

Here’s a list of people who have successfully modded their console with this diagram. Leave a comment and I’ll add you to the list.

  1. William Quade (me)

Example installations

This section has photos of some successful installations which you can use to get a better understanding of how everything is wired and positioned. Leave a comment and I’ll add your installation to the list

  1. William Quade (me)

There isn’t much room underneath the board so I found placing the modchip partially off the edge of the underside worked well. Both in terms of having the wires short, and so everything went back together nicely.

V18 Modbo example installation V18 Modbo example installation

Leave a Reply

2 Comment threads
3 Thread replies
Most reacted comment
Hottest comment thread
4 Comment authors
KimbapsliceWilliam QuadedtchWer Bn Recent comment authors
newest oldest most voted
Notify of
Wer Bn
Wer Bn

I have the same board
How in the world have you soldered I,H,B,G?
they’re too small


SCPH 90001 GH-072-42 here. Finally, success but what a pain in the butt! It took me about 2 weeks and multiple failures booting to black screens. I had to remove the Modbo 5. Finally today, I tried to very slowly solder on the bios wires and those impossibly small 4 wires I, H, B, and G. I think the black screens were because of the bios wires lifting the chip legs. I used different points for the ground and 3.3v (I found a random post on reddit with a picture of a recently acquired slim with a modchip installed). I… Read more »