PsNee

PSNee V9.0

PSNee is compatible with all retail PlayStation 1 models and various AVR microcontrollers.

For all useful information, please consult the Wiki.

Features

• Disc Region Protection: Removes region locks.
• BIOS Patching: Provides enhanced compatibility.
• Board Support: Custom boards manager to simplify fuse settings and hardware configuration.

[!IMPORTANT] Video Signal Note: This modchip does not handle PAL/NTSC video signal conversion. Playing games from a different region may result in an incorrect display (e.g., NTSC games on early PAL consoles, or PAL games on NTSC-U/C or NTSC-J consoles).

European models from SCPH-5502 to SCPH-9002 typically handle NTSC signals correctly. However, SCPH-102 requires a BIOS patch to support it.

See the Example of a distorted image at the bottom of the page.

Supported Hardware (AVR)

• ATmega328(A/P/PA) @16MHz
• ATmega168(A/P/PA) @16MHz
• ATmega32U4 @16MHz
• ATtiny25/45/85 @8MHz (No BIOS patch support!)

[!CAUTION] SCPH-7000 NTSF J (BIOS Patch & Memory Cards): On SCPH-7000 models, the BIOS patch has an issue with memory cards. The only way to bypass it is to install a switch on the mod to disable the BIOS patch. This is done according to the available diagram.

Example of a distorted image

Typical result when playing a game from a different region without a signal converter.

Verified Hardware (Personal Test Collection)

From left to right: NTSC-J, PAL, and NTSC-U/C & Asia models.