If you are happy it’s all working, then now we need to dis-assemble it again (I know right) and secure all of your wiring into place using either electrical tape or hot glue. I would recommend using a small amount of hot glue like the install example above but do not use too much as it can cause the chips to overheat if you have smothered them in too much glue.
Software setup guide for Modbo 4.0 and HDPro V1.0 (SLIM and FAT Read more about modbo, software, hdpro, hdloader, installation and install.
Boot Hotkeys
There is an assortment of different boot options, if you hold down certain buttons while the system boots, the console will perform different tasks. Here is a list of the functions that I know of:
- Circle – Boots ModBo Chip/system into PSX DVD Video mode. This forces the PS2 to either play PS1 games or DVD movies
- Triangle – Forces the system to boot the Infinity Manager
- Cross – Forces the system to bypass settings and boot to the Sony Browser with the ModBo chip enabled.
- Start – This Disables the chip. Once this is done, tap the standby button to reset the system to finish disabling the Modbo chip. To Re-enable the Modbo chip you must place the system into standby
- Select – This forces a Fast boot on PS2 games. Basically skipping the startup animation and Playstaion 2 Logo on disc boot
- R1 – This boots a homebrew ELF file from the first memory card (mc0:/BOOT/BOOT.ELF)
- L1 – This boots a homebrew ELF file from the hard drive if installed (hdd0:/__boot/boot.elf)
- To enter the Configuration Menu, hold TRIANGLE AND CIRCLE at power on
Homebrew Apps
Now that you are all up and running you will probably be wanting to look at the homebrew apps made by the community. You can download a wide range of homebrew games and apps from here for free.
Happy Gaming!
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MultiMode 3, or MM3 modchips are very popular, and should work with every version of the PlayStation 1. They can be made using PIC12C508A, PIC12F629, and other PIC chips. This guide covers everything you need to know about choosing, programming, and installing an MM3 modchip into your PlayStation.
This guide is structured into several pages. It’s organized like this primarily so that comments can be more organized and useful for readers.
This page covers the MM3 modchip. It includes general information about the chip, and then links off to installation guides for each console model.
If you want more information about PlayStation 1 modchips in general check out this guide.
Below is a list of all PlayStation 1 motherboard versions, along with the console model numbers associated with them. You can get a good idea of what board you have by looking at the model number underneath your system (something like SCPH-7501).
To actually know what board you have you’ll most likely have to open up your console and look for the board version printed somewhere on the board (something like PU-22 or PM-41).
Once you know what board you have you can click on the board model and you’ll be sent to a page with the installation diagram.
- PU-7
- All SCPH-1000’s
- Some early SCPH-1001, and SCPH-1002’s
- Some early SCPH-3000’s
- Some early SCPH 3500’s
- PU-8
- Most SCPH-1001, and SCPH-1002’s
- Most SCPH-3000’s
- Most SCPH-3500’s
- All SCPH-5000’s
- PU-16
- All SCPH-5903’s
- PU-18
- All SCPH-5001’s
- All SCPH-5500, SCPH-5501, SCPH-5502, and SCPH-5503’s
- All SCPH-5552’s
- Some early SCPH-7000, SCPH-7001, SCPH-7002, and SCPH-7003’s
- Some early SCPH-7501’s
- PU-20
- Most聽SCPH-7000, SCPH-7001, SCPH-7002, and SCPH-7003’s
- PU-22
- All SCPH-7500’s
- Most SCPH-7501’s
- All SCPH-7502, and SCPH-7503’s
- Some early SCPH-9000, SCPH-9001, SCPH-9002, and SCPH-9003’s
- PU-23
- Most聽SCPH-9000, SCPH-9001, SCPH-9002, and SCPH-9003’s
- PM-41
- Earlier SCPH-100, SCPH-101, SCPH-102, and SCPH-103’s
- PM-41 (2)
- Later SCPH-100, SCPH-101, SCPH-102, and SCPH-103’s
The biggest problem with MM3 chips is how they base their timing on the internal oscillator within the PIC chips. Using the internal oscillator can sometimes cause the chip to become out of sync with the console when booting, meaning you’ll have to restart the console to boot.
Certain PIC programmers can also mess up the internal oscillator value when programming, which could be a problem if you are programming your own chips. Additionally it has been reported that certain batches of PIC chips have had problems with the oscillator value in the past.
The MM3’s greatest strength is its compatibility and popularity. From my experience it is the single most popular PS1 modchip being used today. Because of this you’re more likely to find people who can help you if you are having problems installing your chip.
Additionally the MM3 is compatible with most PS1 consoles and can play anti modchip games if you install all seven wires. The only system that you definitely shouldn’t install an MM3 in is the SCPH-102 (install a ONEchip instead).
If you’d like to program your own MM3 modchips you’ll need the source code. Right now I only have the code for the PIC12C508A and the PIC12F629. If you have the code for other PIC chips let me know and I’ll add them to this post.
The MM3 chip has three different versions, one for each region. If you have an American system use the USA version, if you have a European system use the EUR version, and if you have a Japanese system use the JAP version.
- PIC12C508A
- 聽PIC12F629
- MM3 PIC12F629 USA (assembly source)
- MM3 PIC12F629 EUR (assembly source)
- MM3 PIC12F629 JAP (assembly source)
I’ll have a tutorial on how to program these PIC chips in the future.
All MM3 chips I sell are preprogrammed.
I sell preprogrammed MM3 modchips on my store. The shipping is calculated by weight so if you buy more than one chip at a time you’ll be able to save some money.
I also sell these same chips at a slightly higher price on my eBay store.
I currently only ship chips to the United States. If you’re located in another country I recommend buying from EurAsia. They sell genuine chips for a good price, but shipping is fairly slow.
I sell both premodded PS1’s, and MM3 modchip installation services on my eBay store, as well as my store on this website.
On my store you can select which chip you’d like, and which model of console you’d like. On my eBay store I use a single product listing for every model of console and every type of chip, and update the title and description to reflect what is currently for sale.
More information is available on the linked listings.