The following default HID values are pre-configured in the tools based on AMD internal board designs. You might need to alter these defaults to match your HSA resistor values.
| DIMM Type | Slot-0 Default HID | Slot-1 Default HID |
|---|---|---|
| RDIMM | 0x0 (10.0 kΩ HSA resistor) | 0x1 (15.4 kΩ HSA resistor) |
| CUDIMM/CSODIMM | 0x7 (196 kΩ HSA resistor) | 0x6 (127 kΩ HSA resistor) |
Figure 1. DDR Memory Options
Important: The default HID values in the preceding
figure are set for AMD internal characterization boards. For user
designs, you must verify that the HID values in the wizard match the HSA resistor
values populated on your PCB. Using the wrong HID values results in I2C address
conflicts and calibration failure.