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Memory Configuration

Install i2c-tools

# Fedora
sudo dnf install i2c-tools

# Debian
sudo apt install i2c-tools

Find your smbus controller

Your i2c-X device will have a different number. Usually, it's the first smbus device from the list. If you don't see your smbus device, you will need to use acpi_enforce_resources=lax boot parameter.

sudo i2cdetect -l
i2c-0   i2c             Synopsys DesignWare I2C adapter         I2C adapter
i2c-1   i2c             Synopsys DesignWare I2C adapter         I2C adapter
i2c-2   i2c             NVIDIA i2c adapter 1 at 1:00.0          I2C adapter
i2c-3   i2c             NVIDIA i2c adapter 2 at 1:00.0          I2C adapter
i2c-4   i2c             NVIDIA i2c adapter 3 at 1:00.0          I2C adapter
i2c-5   i2c             NVIDIA i2c adapter 4 at 1:00.0          I2C adapter
i2c-6   i2c             NVIDIA i2c adapter 5 at 1:00.0          I2C adapter
i2c-7   i2c             NVIDIA i2c adapter 6 at 1:00.0          I2C adapter
i2c-8   i2c             NVIDIA i2c adapter 7 at 1:00.0          I2C adapter
i2c-9   i2c             AMDGPU DM i2c hw bus 0                  I2C adapter
i2c-10  i2c             AMDGPU DM i2c hw bus 1                  I2C adapter
i2c-11  i2c             AMDGPU DM i2c hw bus 2                  I2C adapter
i2c-12  i2c             AMDGPU DM i2c hw bus 3                  I2C adapter
i2c-13  i2c             AMDGPU DM aux hw bus 1                  I2C adapter
i2c-14  i2c             AMDGPU DM aux hw bus 2                  I2C adapter
i2c-15  smbus           SMBus PIIX4 adapter port 0 at 0b00      SMBus adapter
i2c-16  smbus           SMBus PIIX4 adapter port 2 at 0b00      SMBus adapter
i2c-17  smbus           SMBus PIIX4 adapter port 1 at 0b20      SMBus adapter

Find the correct SMBus device

Your physical memory starts at address 50 and increases. If you're seeing this, you're on the right SMBus controller. In this example, my SMBus is located on i2c-15

sudo i2cdetect -y 15
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:                         -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- 19 -- 1b -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- 49 -- 4b -- -- -- -- 
50: -- UU -- UU -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --

Find your memory SKU

Find your memory SKU and take a note of it.

sudo dmidecode -t memory | grep 'Part Number'
        Part Number: CMT64GX5M2B5600Z40
        Part Number: CMT64GX5M2B5600Z40

Configure OpenLinkHub config.json

You will need to change your memorySmBus, memoryType, and memorySku depending on your system values.

"memory": true,
"memorySmBus": "i2c-15",
"memoryType": 5,
"decodeMemorySku": false,
"memorySku": "CMT64GX5M2B5600Z40",
"ramTempViaHwmon": true,

Set permissions

You will need to change 'KERNEL=="i2c-15" to your i2c smbus device.

echo 'KERNEL=="i2c-15", MODE="0600", OWNER="openlinkhub"' | sudo tee /etc/udev/rules.d/98-corsair-memory.rules
sudo udevadm control --reload-rules
sudo udevadm trigger

Restart OpenLinkHub service

sudo systemctl restart OpenLinkHub.service