diff --git a/code/ryzom/client/src/client_cfg.cpp b/code/ryzom/client/src/client_cfg.cpp
index 83f73afae..2e1bbdca4 100644
--- a/code/ryzom/client/src/client_cfg.cpp
+++ b/code/ryzom/client/src/client_cfg.cpp
@@ -254,43 +254,6 @@ extern NL3D::UDriver	*Driver;
 extern CRyzomTime		RT;
 extern string	Cookie;
 extern string	FSAddr;
-
-extern uint64		Debug_OldCPUMask;
-extern uint64		Debug_NewCPUMask;
-
-// For multi cpu, active only one CPU for the main thread
-void setCPUMask(uint64 userCPUMask)
-{
-	uint64 cpuMask = IProcess::getCurrentProcess()->getCPUMask();
-	Debug_OldCPUMask = cpuMask;
-
-	// if user CPU mask is valid
-	if (cpuMask & userCPUMask)
-	{
-		// use it
-		IProcess::getCurrentProcess ()->setCPUMask(cpuMask & userCPUMask);
-	}
-	else
-	{
-		// else get first available CPU
-
-		// get the processor to allow process
-		uint i = 0;
-		while ((i < 64) && ((cpuMask & (UINT64_CONSTANT(1) << i)) == 0))
-			i++;
-
-		// Set the CPU mask
-		if (i < 64)
-		{
-			IProcess::getCurrentProcess ()->setCPUMask(UINT64_CONSTANT(1) << i);
-		}
-	}
-
-	// check
-	cpuMask = IProcess::getCurrentProcess ()->getCPUMask();
-	Debug_NewCPUMask = cpuMask;
-}
-
 #endif
 
 /////////////
@@ -1713,22 +1676,6 @@ void CClientConfig::setValues()
 	SetPriorityClass (GetCurrentProcess(), priority[index]);
 #endif // NL_OS_WINDOWS
 
-	sint cpuMask;
-
-	if (ClientCfg.CPUMask < 1)
-	{
-		CTime::CTimerInfo timerInfo;
-		NLMISC::CTime::probeTimerInfo(timerInfo);
-
-		cpuMask = timerInfo.RequiresSingleCore ? 1:0;
-	}
-	else
-	{
-		cpuMask = ClientCfg.CPUMask;
-	}
-		
-	if (cpuMask) setCPUMask(cpuMask);
-
 	// Init Verbose Modes (at the beginning to be able to display them as soon as possible).
 	::VerboseVP				= ClientCfg.VerboseVP;
 	::VerboseAnimUser			= ClientCfg.VerboseAnimUser;
diff --git a/code/ryzom/client/src/init.cpp b/code/ryzom/client/src/init.cpp
index 94376cd3f..8daabdaa5 100644
--- a/code/ryzom/client/src/init.cpp
+++ b/code/ryzom/client/src/init.cpp
@@ -378,6 +378,39 @@ void outOfMemory()
 uint64		Debug_OldCPUMask = 0;
 uint64		Debug_NewCPUMask = 0;
 
+// For multi cpu, active only one CPU for the main thread
+void setCPUMask(uint64 userCPUMask)
+{
+	uint64 cpuMask = IProcess::getCurrentProcess()->getCPUMask();
+	Debug_OldCPUMask = cpuMask;
+
+	// if user CPU mask is valid
+	if (cpuMask & userCPUMask)
+	{
+		// use it
+		IProcess::getCurrentProcess ()->setCPUMask(cpuMask & userCPUMask);
+	}
+	else
+	{
+		// else get first available CPU
+
+		// get the processor to allow process
+		uint i = 0;
+		while ((i < 64) && ((cpuMask & (UINT64_CONSTANT(1) << i)) == 0))
+			i++;
+
+		// Set the CPU mask
+		if (i < 64)
+		{
+			IProcess::getCurrentProcess ()->setCPUMask(UINT64_CONSTANT(1) << i);
+		}
+	}
+
+	// check
+	cpuMask = IProcess::getCurrentProcess ()->getCPUMask();
+	Debug_NewCPUMask = cpuMask;
+}
+
 void	displayCPUInfo()
 {
 	nlinfo("CPUInfo: CPUMask before change: %x, after change: %x, CPUID: %x, hasHyperThreading: %s", (uint32)Debug_OldCPUMask, (uint32)Debug_NewCPUMask, CSystemInfo::getCPUID(), (CSystemInfo::hasHyperThreading()?"YES":"NO"));
@@ -836,6 +869,22 @@ void prelogInit()
 		ClientCfg.init(ConfigFileName);
 		CLoginProgressPostThread::getInstance().init(ClientCfg.ConfigFile);
 
+		sint cpuMask;
+
+		if (ClientCfg.CPUMask < 1)
+		{
+			CTime::CTimerInfo timerInfo;
+			NLMISC::CTime::probeTimerInfo(timerInfo);
+
+			cpuMask = timerInfo.RequiresSingleCore ? 1:0;
+		}
+		else
+		{
+			cpuMask = ClientCfg.CPUMask;
+		}
+
+		if (cpuMask) setCPUMask(cpuMask);
+
 		setCrashCallback(crashCallback);
 
 		// Display Some Info On CPU