PS4 Pro Southbridge IC CUH-7000 / CXD90046GG

On the PS4 Pro, the southbridge is the control chip that handles many of the console's supporting functions. According to the listing, the CXD90046GG manages USB, the hard drive, audio, networking and power management, which is why a southbridge fault can show up in so many different ways.

This listing sells the CXD90046GG southbridge IC for PS4 Pro CUH-7000 series consoles. According to the listing, it fixes boot failure, USB faults, hard drive detection errors and network problems.

When the southbridge is a suspect

• The console won't boot or loops at startup.

• USB ports that don't work.

• Hard drive not detected.

• Network faults after a surge or liquid damage.

Before you replace it

Rule out the hard drive, the power supply and the USB ports first, and check the board for corrosion or damaged parts around the chip. Southbridge replacement is BGA work that needs a preheater, good reballing skills and careful pad cleaning.

After fitting, test boot, USB, the hard drive, network and audio. Each of these runs through the southbridge, so all of them should work.