well, i also want to have a silent pc. my gpu cooler only runs at around 500rpm. of course, i can crank it up more to reduce temp, but then i start to hear it. 
not sure about the 80°c but somewhere around there, the card will shut down.
also, i don’t have the values in my config file. here’s what it looks like:
C:\Program Files (x86)\WarChest\Dirty Bomb\Published\Content\ShooterGame\Config\ShooterGame.ini
[Engine.GameInfo]
DefaultGame=ShooterGame.SGGameInfoObjective
DefaultServerGame=ShooterGame.SGGameInfoObjective
bAdminCanPause=false
MaxPlayers=16
GameDifficulty=+1.0
bChangeLevels=True
MaxSpectators=2
MaxIdleTime=+0.0
MaxTimeMargin=+0.0
TimeMarginSlack=+1.35
MinTimeMargin=-1.0
TotalNetBandwidth=32000
MaxDynamicBandwidth=7000
MinDynamicBandwidth=4000
DefaultGameType=ShooterGame.SGGameInfoObjective
[Engine.AccessControl]
IPPolicies=ACCEPT;*
[DefaultPlayer]
Name=Player
Team=255
[Engine.HUD]
bMessageBeep=true
HudCanvasScale=0.950000
ConsoleMessageCount=99
ConsoleFontSize=5
MessageFontOffset=0
bShowHUD=true
DebugDisplay=AI
[Engine.PlayerController]
bAimingHelp=false
InteractDistance=512
bCheckRelevancyThroughPortals=true
MaxConcurrentHearSounds=32
bLogHearSoundOverflow=FALSE
DefaultFOV=90.185547
bNeverSwitchOnPickup=False
[Engine.Weapon]
Priority=-1.0
[Engine.WorldInfo]
DefaultGravityZ=-750.0
RBPhysicsGravityScaling=1.0
MaxPhysicsSubsteps=5
SquintModeKernelSize=128.0
EmitterPoolClassPath=Engine.EmitterPool
DecalManagerClassPath=Engine.DecalManager
FractureManagerClassPath=Engine.FractureManager
FracturedMeshWeaponDamage=1.0
ChanceOfPhysicsChunkOverride=1.0
bEnableChanceOfPhysicsChunkOverride=FALSE
FractureExplosionVelScale=1.0
DefaultAmbientZoneSettings=(bIsWorldInfo=true)
bPersistPostProcessToNextLevel=TRUE
bAllowHostMigration=FALSE
HostMigrationTimeout=15
bAllowTemporalAA=True
[Engine.AutoTestManager]
NumMinutesPerMap=50
#CommandsToRunAtEachTravelTheWorldNode=MemLeakCheck
#CommandsToRunAtEachTravelTheWorldNode=SNAPSHOTMEMORY
[Engine.DecalManager]
DecalLifeSpan=10.0
[Engine.UIDataStore_GameResource]
ElementProviderTypes=(ProviderTag="GameTypes",ProviderClassName="Engine.UIGameInfoSummary")
[GameFramework.MobileHud]
bShowMobileHud=true
bShowGameHud=false
bForceMobileHUD=False
[GameFramework.MobileInputZone]
RenderColor=(R=255,G=255,B=255,A=255)
InactiveAlpha=0.5
SizeX=100
SizeY=100
VertMultiplier=1.0
HorizMultiplier=1.0
bUseGentleTransitions=true
ResetCenterAfterInactivityTime=3.0
ActivateTime=0.6
DeactivateTime=0.2
TapDistanceConstraint=5
bApplyGlobalScaleToActiveSizes=true
AuthoredGlobalScale=2.0
[Configuration]
[Engine.GameReplicationInfo]
ServerName=
[ShooterGame.SGPlayerController]
PlayerDefaultFOV=90.185547
ViewBobEnabled=False
TTSEnabled=false
RotateMinimap=true
HitBeepsEnabled=True
m_bEnablePawnGhostSystem=true
m_bShowDeathInfo=true
m_MaxBroadcastsPerSecond=3
m_bEnableGameplayFovAdjust=False
m_SprintFovAdjust=5.000000
m_SprintFovAdjustGainTime=1.000000
m_SprintFovAdjustLoseTime=0.150000
m_bGameplayPP=False
SprintToggle=False
CrouchToggle=False
WalkToggle=False
IronSightToggle=False
ForceFeedbackManagerClassName=
InteractDistance=512.000000
[ShooterGame.SGPawn]
m_HighlightVSayOnHUD=true
m_HighlightVSayDisplayTime=4
[ShooterGame.SGGamePerformanceSettings]
m_PawnPhysicsBodiesFixed=false
m_WeaponPhysicsBodiesFixed=false
[AnimGroups]
ThirdPerson=Melee
ThirdPerson=1H
ThirdPerson=1H_MachinePistol_01
ThirdPerson=1H_MachinePistol_03
ThirdPerson=1H_Pistol_04
ThirdPerson=2H
ThirdPerson=2H_AssaultRifle_03
ThirdPerson=2H_MachineGun_01
ThirdPerson=2H_MachineGun_02
ThirdPerson=2H_Shotgun_01
ThirdPerson=2H_Shotgun_02
ThirdPerson=2H_Shotgun_03
ThirdPerson=2H_MachinePistol_02
ThirdPerson=2H_MachinePistol_04
ThirdPerson=2H_RocketLauncher_01
ThirdPerson=2H_SniperRifle_01
ThirdPerson=2H_SniperRifle_02
ThirdPerson=2H_SniperRifle_03
ThirdPerson=2H_SubMachineGun_01
ThirdPerson=2H_SubMachineGun_02
ThirdPerson=2H_SubMachineGun_04
ThirdPerson=2H_GrenadeLauncher_01
ThirdPerson=Item1H
ThirdPerson=Item1H_Grenade_01
ThirdPerson=Item1H_Knife_01
ThirdPerson=Item1H_ThrowableKnife_01
ThirdPerson=Item1H_Backstab
ThirdPerson=Item1H_Pliers_01
ThirdPerson=Item1H_Defibs_01
ThirdPerson=Item1H_PDA_01
ThirdPerson=Item2H
ThirdPerson=Item2H_Mine_01
ThirdPerson=Item2H_C4_01
ThirdPerson=Mounted_MG_01
ThirdPerson=APCMG_01
ThirdPerson=Heavy
FirstPerson=Melee
FirstPerson=1H
FirstPerson=2H
FirstPerson=Item1H
FirstPerson=Item2H
[ShooterGame.SGGameInfo]
TimeLimit=20
ScheduledEmptyServerMapRestartTime=7200.0
m_bUseMapVote=false
m_VotableMaps=OBJ_LondonBridge
m_VotableMaps=OBJ_Victoria
m_VotableMaps=OBJ_Whitechapel
m_RotatingMaps=OBJ_LondonBridge
m_RotatingMaps=OBJ_Victoria
m_RotatingMaps=OBJ_Whitechapel
[ShooterGame.SGGameInfoTeamDeathMatch]
m_VotableMaps=TDM_Victoria
m_VotableMaps=TDM_LondonBridge
m_VotableMaps=TDM2_Victoria
m_VotableMaps=TDM2_LondonBridge
m_RotatingMaps=TDM_Victoria
m_RotatingMaps=TDM_LondonBridge
m_RotatingMaps=TDM2_Victoria
m_RotatingMaps=TDM2_LondonBridge
[ShooterGame.SGUIHUDManager]
DamageIndicatorSize=512
CustomFonts[0]=$BMMedium
CustomFonts[1]=$BMLarge
CustomFonts[2]=$MainFont
CustomFonts[3]=$BMSmall
m_EnableMenuPP=False
m_MenuPPSetting=(BlurFocusInnerRadius=0.000000,BlurKernelSize=20.000000,BlurFocusDistance=0.000000,BlurMaxFarBlurAmount=1.000000,BlurMaxNearBlurAmount=1.000000,ColorizeColor=(X=0.700000,Y=0.700000,Z=0.700000),DesaturationAmount=0.500000,HasDesaturation=True,HasBlur=True,HasColorize=False)
m_LoadGameMenuAtStart=true
m_OpenMenuByDefault=true
m_MaxMessageHistory=100
bShowGameHud=True
bShowMobileHud=True
bShowMobileTilt=False
bDebugTouches=False
bDebugZones=False
bDebugZonePresses=False
bShowMotionDebug=False
MobileTiltX=0.000000
MobileTiltY=0.000000
MobileTiltSize=0.000000
bShowHUD=False
[ShooterGame.SGObjectiveEscort]
m_MinDelayBetweenRepairMessages=2
[SDEngine.SDSoundManager]
MasterVolume=100
[IniVersion]
0=1363344668.000000
1=1366991795.000000