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Dual Display Doubt and a '105c Hickup'

post #1 of 2
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I just began using dual monitors today (2960x2074). I noticed that while on idle, the core clock does not go below 405 MHz. Usually when using only one monitor it would idle at 51 MHz. Is this normal?
the temperatures now idle at about 10 to 15° higher than when using one monitor, but I assume that's normal when using more than one display.
So with one monitor it's 51 MHz but with two monitors it's 405 MHz... 51x2 is not 405...

(OC is stable)

On a side note: About three days ago I started a game and didn't notice that I had accidentally set the GPU fan to 'manual' at 35% speed. About a minute into the game I noticed that the card instantly maxed the fan speed.
Curious to see why the change happened so fast, I closed the game and saw MSI Afterburner register a temperature of 105°C. So I guess the instant fan speed must've been TJ Max kicked in.
I'm a little worried about if I just burned something in the card that could affect any RMA should one happen in the future (Hope that it doesn't happen).
Should I open it, replace TIM and whatnot, or just not worry about it and simply be careful that it doesn't happen again?
Edited by Wnivre - 8/10/11 at 1:38am
Lilith VIII
(13 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K Maximus IV GENE-Z WindForce 7950 @ 1.2GHz EVGA GTX 470 *Hybrid PhysX* 
RAMHard DriveCoolingOS
16GB, 1600MHz Ripjaws X (4x4GB) 1TB + 1TB + 250GB + 160GB + 160GB CM Hyper 212 Plus Windows 8 Professional 
MonitorKeyboardPowerCase
23' + 21.5' Logitech Classic Keyboard 200 OCZ 700w ModXStream Pro CM Storm Trooper 
Mouse
Microsoft Wireless Mouse 3000 
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Lilith VIII
(13 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K Maximus IV GENE-Z WindForce 7950 @ 1.2GHz EVGA GTX 470 *Hybrid PhysX* 
RAMHard DriveCoolingOS
16GB, 1600MHz Ripjaws X (4x4GB) 1TB + 1TB + 250GB + 160GB + 160GB CM Hyper 212 Plus Windows 8 Professional 
MonitorKeyboardPowerCase
23' + 21.5' Logitech Classic Keyboard 200 OCZ 700w ModXStream Pro CM Storm Trooper 
Mouse
Microsoft Wireless Mouse 3000 
  hide details  
Reply
post #2 of 2
1) Yes, that is normal and it is not a bug. Nvidia states this is a hardware limitation. Actually Nvidia states that for multi monitor setup, a card will remain in 3D speed (ie 750MHz for your overclocked situation) even in the absence of a 3D application, in order to keep the monitors happy. The card just does not downclock to idling speed (51MHz). See pic below taken from the latest driver notes.
The fact that you are seeing a 2D speed (405MHz) is a surprise gift.

2) Do not worry. The card should have protection features to prevent itself from burning up (unless you turn them off). Just be careful next time.

Edited by windfire - 8/10/11 at 1:06am
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