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Implementation for Intel Core i7 temperature sensors.

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This commit is contained in:
Michael Möller
2010-01-27 23:00:13 +00:00
parent 71940eb2c9
commit d9a90e20d7
1 changed files with 23 additions and 6 deletions
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Hardware/CPU/IntelCPU.cs
+23 -6
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@@ -52,6 +52,7 @@ namespace OpenHardwareMonitor.Hardware.CPU {
private float tjMax = 0;
private const uint IA32_THERM_STATUS_MSR = 0x019C;
private const uint IA32_TEMPERATURE_TARGET = 0x01A2;
public IntelCPU(string name, uint family, uint model, uint stepping,
uint[,] cpuidData, uint[,] cpuidExtData) {
@@ -59,9 +60,17 @@ namespace OpenHardwareMonitor.Hardware.CPU {
this.name = name;
this.icon = Utilities.EmbeddedResources.GetImage("cpu.png");
uint coreCount = 1;
if (cpuidData.GetLength(0) > 4)
coreCount = ((cpuidData[4, 0] >> 26) & 0x3F) + 1;
uint logicalProcessors = 1;
if (cpuidData.GetLength(0) > 0x04)
logicalProcessors = ((cpuidData[4, 0] >> 26) & 0x3F) + 1;
uint logicalProcessorsPerCore = 1;
if (cpuidData.GetLength(0) > 0x0B)
logicalProcessorsPerCore = cpuidData[0x0B, 1] & 0xFF;
if (logicalProcessorsPerCore == 0)
logicalProcessorsPerCore = 1;
uint coreCount = logicalProcessors / logicalProcessorsPerCore;
switch (family) {
case 0x06: {
@@ -84,11 +93,19 @@ namespace OpenHardwareMonitor.Hardware.CPU {
tjMax = 85; break;
default:
tjMax = 85; break;
} break;
case 0x1c: // Intel Atom
tjMax = 90; break;
} break;
case 0x17: // Intel Core 45nm
tjMax = 100; break;
case 0x1C: // Intel Atom
tjMax = 90; break;
case 0x1A:
uint eax = 0, edx = 0;
if (WinRing0.RdmsrPx(
IA32_TEMPERATURE_TARGET, ref eax, ref edx, (UIntPtr)1)) {
tjMax = (eax >> 16) & 0xFF;
} else
tjMax = 100;
break;
default:
tjMax = 100; break;
}