DDR5 RAM SPD I2C Adapter for Bus Pirate 5/6

The DDR5 RAM SPD I2C Adapter Plank makes it easy to read and write the SPD chip on DDR5 UDIMM and SODIMM computer memory modules in offline mode with your Bus Pirate 5 or Bus Pirate 6. Use the Bus Pirate ddr5 command to read and write the SPD EEPROM on a DDR5 module, or follow the DDR5 device demo to learn about the technical details.

The board voltage regulation and level translation, and has everything you need to play with DDR5 without soldering. The plank provides the correct voltage levels and pinouts to interface with a DDR5 SPD chip in offline mode.

The ddr55 command can probe, read, write, and unlock the SPD hub chip in DDR5 SDRAM computer memory modules (UDIMM, SODIMM):

• Unlock SPD chips, backup SPD data and restore corrupted SPD tables
• Search for, and replicate, hidden entries unscrupulous manufacturers use to lock equipment to proprietary RAM modules

DDR5 SPD dumps can be edited with a HEX editor or a dedicated SPD editor GUI like DDR5SPDEditor.

Warning: Use the DDR5 adapter at your own risk. Don’t experiment with expensive high capacity, high speed, overclocker-special DDR5.

Features

• 288 pin DDR5 UDIMM socket for standard desktop memory modules
• 262 pin DDR5 SODIMM socket for laptop memory modules
• Accepts a single 5 volt power supply
• A 3.3 volt regulator supplies the I2C and PWR_EN pins
• A level shifter ensures the I2C pins HSDA and HSCL are never more than 3.3 volts
• HSA is pulled to ground to put the module in offline mode
• PWR_GOOD is connected to an LED indicator that lights when the PMIC reports a voltage error

Resources

• Schematic and PCB
• Development thread
• DDR5 device demo
• ddr55 command

Package Contents

• 1x DDR5 RAM SPD I2C Adapter Plank for Bus Pirate 5/6
• 1x Plastic feet set

Bus Pirate not included