.spd file
![.spd file .spd file](https://1.bp.blogspot.com/-ca98RYMqIic/W258arfpChI/AAAAAAAAFDY/ItJBig-OXOkhCHpKB9OK7-Ov6NiK3zvxgCLcBGAs/s1600/p10.jpg)
No size specified (using byte-data access) (In this case a rubbish DDR3-1333 (PC3-10600) RAM module.
![.spd file .spd file](https://i.ytimg.com/vi/qBRaviiMyZY/maxresdefault.jpg)
# A successful dump should look a little like this. This is a common issue with systems with Nvidia graphics cards or chipsets. # In this case the i2c SPD is not actually bus 0, but on bus 5, note that the i801 module was loaded I2c-5 unknown SMBus I801 adapter at 0400 N/A I2c-0 unknown NVIDIA i2c adapter 0 at 1:00.0 N/A I2c-2 unknown NVIDIA i2c adapter 2 at 1:00.0 N/A I2c-4 unknown NVIDIA i2c adapter 8 at 1:00.0 N/A I2c-1 unknown NVIDIA i2c adapter 1 at 1:00.0 N/A I2c-3 unknown NVIDIA i2c adapter 6 at 1:00.0 N/A
.SPD FILE INSTALL
RAM modules are most often located at SPD bus addresses 0x50, 0x52, 0x54 etc.Īn easy way to access SPD devices on any linux system is to use the i2c-toolsĪpt install -y i2c-tools (for debian/ubuntu based) SPD devices can be accessed via the systems built in i2c bus. SPD is present on virtually all modern DDR memory modules and serves to define the operating paramters of the memory module to the computer firmware. This project aims to create an 'open source'\libre (linux) editor for DDR memory chips Serial Presence Detect Data (SPD) Hacking DDR Memory Serial Presence Detect Specefication/ contains SPD binary structure layout documentation and other relevant technical information. Structures/ contains an xml descriptor file for the okteta hex editor's structure plugin. Tools/ contains some Windows programs for SPD reading and writing.
![.spd file .spd file](https://www.99mediasector.com/wp-content/uploads/2020/08/Extract-SPD-Pac-File-min.jpg)
Scripts/ contains some bash scripts for reading and writing SPD in Linux. More info here.Īrduino/ contains an Arduino sketch for reading SPD, modifying the max clock frequency, recalculating the CRC and writing back to the SPD.ĭumps/ contains some SPD dumps from various RAM modules.ĭumps-miscelaneous/ contains some SPD dumps from various unnamed RAM modules. Prior research and Tools for modifying RAM SPD data in part thanks to.