The following commands are known to be valid for RSMU supported processors. The table below indicates various mnemonics and their meanings. Optional details may be shown if applicable.
| Mnemonic | Description |
|---|---|
| PBO Scalar | Precision Boost Overdrive Aggressiveness |
| PBO | Precision Boost Overdrive |
| PPT | Package Power Tracking |
| TDC | Thermal Design Current |
| EDC | Electrical Design Current |
| AutoOC | Automatic Overclocking |
| ArgX | Command Request Argument X (1-6) |
| ResX | Command Response Argument X (1-6) |
| mW | Milliwatt |
| mA | Milliampere |
| C | Celcius |
| VID | Voltage ID Index (Value Applied = 1.55 - (VID * 0.00625)) |
| PhyAddr | Physical Address |
| BitField | Bit Field Containing Values |
The following commands work on all processors supporting MP1 or RSMU:
| Function | Command ID | Details |
|---|---|---|
| TestMessage | 0x01 | Arg0:X, Res0:(X+1) |
| GetSMUVersion | 0x02 | Res0:Version |
Commands shown to be used in Ryzen Master.
| Function | Command ID | Details |
|---|---|---|
| TransferTableSmu2Dram | 0x05 | |
| GetDramBaseAddress | 0x06 | Res0:PhyAddr |
| GetPMTableVersion | 0x08 | Res0:Version |
| SetVDDCRSoC | 0x14 | Arg0:VID |
| SetPPTLimit | 0x53 | Arg0:mW |
| SetTDCLimit | 0x54 | Arg0:mA |
| SetEDCLimit | 0x55 | Arg0:mA |
| SetcHTCLimit | 0x56 | Arg0:C |
| SetPBOScalar | 0x58 | Arg0:(PBO Scalar * 100) |
| GetFastestCoreOfSocket | 0x59 | Res0:(16 * BYTE2(Res0)) |
| SetPROCHOTStatus | 0x5A | Arg0:Status, Disabled(0x1000000) |
| EnableOverclocking | 0x5A | Arg0:Status, Enabled(0) |
| DisableOverclocking | 0x5B | Arg0:Status, Disabled(0x1000000) |
| SetOverclockFreqAllCores | 0x5C | Arg0:Frequency |
| SetOverclockFreqPerCore | 0x5D | Arg0:Value |
| SetOverclockCPUVID | 0x61 | Arg0:VID |
| GetPBOScalar | 0x6C | Res0:PBO Scalar:(1-10) |
| GetMaxFrequency | 0x6E | Res0:MHz |
| GetProcessorParameters(?) | 0x6F | Res0:BitField |
| Bit | Description |
|---|---|
| 0 | IsOverclockable |
| 1 | FusedMOCStatus/PBO Support |
Value supplied is calculated as follows:
// Invalid.
if (frequency > 8000 || core_id > 3 || core_complex > 1 || ccd_id > 1)
exit(0xDEAD);
value = frequency & 0xFFFFF | ((core_id & 0xF | (16 * (core_complex & 0xF | (16 * ccd_id)))) << 20)