Critical error + Kernel warning

I recently formatted my computer because since I updated for AMD, my computer became slower and when I closed the lid and opened it again, I had to force it to shut down (by holding down the power button). Since the formatting, the problem is half resolved... When I open the lid after closing it, nothing happens for a moment and then it restarts. When it restarts, I check the event viewer and I see two things: a critical error and a warning.

Here is the warning + details:

Warning 2014-07-31 13:58:46 Kernel-Processor-Power (Microsoft)
Log Name: System
Source: Microsoft-Windows-Kernel-Processor-Power
Date: 2014-07-31 13:58:46
Event ID: 37
Task Category: (7)
Level: Warning
Keywords:
User: SYSTEM
Computer: lolipop3
Description:
The speed of processor 0 in group 0 is limited by the system firmware. The processor has remained in this reduced performance state for 71 seconds since the last report.
Event XML:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Processor-Power" Guid="{0F67E49F-FE51-4E9F-B490-6F2948CC6027}" />
<EventID>37</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>7</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2014-07-31T18:58:46.310350400Z" />
<EventRecordID>2009</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="192" />
<Channel>System</Channel>
<Computer>lolipop3</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="Group">0</Data>
<Data Name="Number">0</Data>
<Data Name="CapDurationInSeconds">71</Data>
<Data Name="PpcChanges">1</Data>
<Data Name="TpcChanges">0</Data>
<Data Name="PccChanges">0</Data>
</EventData>
</Event>
And here is the critical error + details:

Critical 2014-07-31 13:57:30 Kernel-Power 41 (63)
Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 2014-07-31 13:57:30
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
User: SYSTEM
Computer: lolipop3
Description:
The system has rebooted without shutting down first. This error can occur if the system becomes unresponsive, crashes, or unexpectedly loses power.
Event XML:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<EventID>41</EventID>
<Version>3</Version>
<Level>1</Level>
<Task>63</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000002</Keywords>
<TimeCreated SystemTime="2014-07-31T18:57:30.174749200Z" />
<EventRecordID>1985</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="8" />
<Channel>System</Channel>
<Computer>lolipop3</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="BugcheckCode">275</Data>
<Data Name="BugcheckParameter1">0x17</Data>
<Data Name="BugcheckParameter2">0xffffe001fada6010</Data>
<Data Name="BugcheckParameter3">0x0</Data>
<Data Name="BugcheckParameter4">0x0</Data>
<Data Name="SleepInProgress">4</Data>
<Data Name="PowerButtonTimestamp">0</Data>
<Data Name="BootAppStatus">0</Data>
</EventData>
</Event>

I believe the question is quite simple... How can I permanently get rid of these errors?