V7 Modbo modchip installation diagram

One of the revisions of the fat PlayStation 2 was the V7. They were found in many of the SCPH-3900x models. 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-J (Japan):
    • SCPH-37000 (GH-019, GH-022)
    • SCPH-39000 (GH-019, GH-022)
    • SCPH-39006 (GH-019, GH-022)
    • SCPH-39007 (GH-019, GH-022)
    • SCPH-39008 (GH-019, GH-022)
  • NTSC-U/C (United States)
    • SCPH-39001 (GH-019, Gh-022)
  • PAL
    • SCPH-39002 (GH-019, GH-022)
    • SCPH-39003 (GH-019, GH-022)
    • SCPH-39004 (GH-019, GH-022)

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.

V7 Modbo installation diagram

Modbo modchip pinout

V7 Modbo installation diagram

Installation tips

Here are some tips I have for you when you are soldering your chip into a V7.

  • Using 30 AWG solid core wire works well for most of the points.
  • Use some thicker wire for the 5V and ground wires.

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)

This first one is a GH-019 board (click on the image and then zoom in to see the details). There is some solder on some additional points because I removed an older modchip and replaced it with a Modbo 5.0 on this board.

GH-019 Modbo modchip example installation

This second one is a GH-022 board (click on the image and then zoom in to see the details). You can see that even though the BIOS chip has a gap in the pins the wiring is the same.

GH-022 Modbo modchip example installation

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David Shepherd
David Shepherd
July 12, 2020 1:54 AM

Hi, GH-019 successfully modded on 16/6/20.

B16CD839-E437-44B8-B1AB-0B7B5E516BB8.jpeg
James Patterson
James Patterson
July 22, 2019 10:32 AM

Installed Modbo 5 on two PAL SCPH-39003 (GH-022) model PS2s and PS2 disc backups wouldn’t boot without the ‘H’ wire attached. So despite the instructions above, I had to include it.

Unsure if this is a difference between Modbo 4 and 5 but worth noting.

Riccardo
Riccardo
May 28, 2020 4:29 PM

I need an alternative for the RST point because I’ve broke it

Aizen
Aizen
September 5, 2020 6:42 PM

Hi, I picked up a modbo 735(branded as infinity 1.99) for a scph 39004( pal) version. Will the diagram above apply to this modchip as well?

Jesse Mike Slinger
Jesse Mike Slinger
November 14, 2020 5:25 AM

i just installed Modbo 5 on a Pal 39004 system but there is no modbo boot up it just look like the regular ps2 boot up screen. What do you think could be at fault here?

Jesse Slinger
Jesse Slinger
November 14, 2020 7:34 AM
Reply to  William Quade

Hey William, thanks for replying. I’ve tested continuity and I get continuity beeps. Maybe I’ll start over though..

Also, SX is bridged on some pictures I see, I mean bridge the resistor and the capacitor and solder the wire in between. I dont have that right now. Is that needed? Model is 39004 gh-019

Jesse Slinger
Jesse Slinger
November 14, 2020 8:04 AM
Reply to  William Quade

Okay great. I’ll leave it as it is. Still not seeing anything when starting the PS2. Do you have tips to verify whether something is connected in the proper way? Because to be honest I don’t see anything that I can do at this point.

Speedy
Speedy
November 15, 2020 5:05 AM

Hey! I also have trouble with this mod, everything is connected but no mod menu or logo. Oh and I hate those ribbon cables, looking at them damages them.

Possible to test the mod chip? I suspect its bad

Speedy
Speedy
November 21, 2020 2:03 PM
Reply to  William Quade

Well the new modchip did the trick, finally saw the matrix menu. Powered down because I had to connect the memory card/controller station. In doing so, after having taken it apart 20 times without issues, the PSU shocked me. After doing that all I get is a black screen now. ****. I appreciate the help you’ve given so far, do you think it’s dead? I would start all over with the mod chip but I think I would at least get a video signal right? The TV does detect the ps2 upon switching it on, because it will switch to… Read more »

Speedy
Speedy
November 22, 2020 4:17 AM
Reply to  Speedy

Never mind, it’s working again. No idea how or why though.