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30 degree difference between GPU's (three-way sli)

post #1 of 2
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GPU #1 is at 80c and GPU #3 is like 53c. (after 2 hours of BF3) They are GTX 760's /w ACX Cooling and I also have the Haf 932 with the GPU vent and a 120mm fan blowing right down the radiator of GPU #1 and #2. Is this normal? or should I be worried?
Callisto
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Pop's Workstation
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Dads PC
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CPUMotherboardGraphicsGraphics
Intel Core i7-4930k @ 4.7GHz 1.4V EVGA X79 Dark ASUS R9 290 Direct CU II  ASUS R9 290 Direct CU II  
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ASUS R9 290 Direct CU II 16GB G.Skill Sniper Series 2400MHz 11 13 13 31 Samsung 840 Pro RAID 0 Samsung 840 Pro RAID 0 
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Seagate NAS 2TB Cooler Master Glacer Windows 8.1 AOC U2868PQU 28'' 3820x2160 @ 60z 
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ASUS VG248QE 24'' 1920x1080 @ 144hz Das Keyboard 4 Ultimate  EVGA SuperNOVA P2 1000W Cooler Master HAF 932 Advanced 
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SteelSeries Sensei [RAW] SteelSeries 63010 QcK Mass Mouse Pad Logitech Surround Sound 5.1 (Exterior Speaker S... Sennheiser G4ME ZERO 
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Intel Core i7-4710MQ  Nvidia Quadro K2100M 8GB (2x4GB) 1600MHz DDR3L 1TB 2.5inch Serial ATA (5,400 Rpm) Hard Drive 
Optical DriveOSMonitorKeyboard
8X DVD-ROM Tray Load Windows 8.1 Pro, 64-bit English Crossover 27'' 2560x1440 60Hz Internal English Backlit Dual Pointing Keyboard 
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180W AC Adapter Dell Precision M4800 
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AMD A4-3300 Llano GIGABYTE GA-A75M-D2H  AMD Radeon HD 6410D Crucial Ballistix Sport 
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Crucial M4 External Hard Disk LITE-ON Stock CPU heatsink fan 
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Callisto
(20 items)
 
Pop's Workstation
(10 items)
 
Dads PC
(11 items)
 
CPUMotherboardGraphicsGraphics
Intel Core i7-4930k @ 4.7GHz 1.4V EVGA X79 Dark ASUS R9 290 Direct CU II  ASUS R9 290 Direct CU II  
GraphicsRAMHard DriveHard Drive
ASUS R9 290 Direct CU II 16GB G.Skill Sniper Series 2400MHz 11 13 13 31 Samsung 840 Pro RAID 0 Samsung 840 Pro RAID 0 
Hard DriveCoolingOSMonitor
Seagate NAS 2TB Cooler Master Glacer Windows 8.1 AOC U2868PQU 28'' 3820x2160 @ 60z 
MonitorKeyboardPowerCase
ASUS VG248QE 24'' 1920x1080 @ 144hz Das Keyboard 4 Ultimate  EVGA SuperNOVA P2 1000W Cooler Master HAF 932 Advanced 
MouseMouse PadAudioAudio
SteelSeries Sensei [RAW] SteelSeries 63010 QcK Mass Mouse Pad Logitech Surround Sound 5.1 (Exterior Speaker S... Sennheiser G4ME ZERO 
CPUGraphicsRAMHard Drive
Intel Core i7-4710MQ  Nvidia Quadro K2100M 8GB (2x4GB) 1600MHz DDR3L 1TB 2.5inch Serial ATA (5,400 Rpm) Hard Drive 
Optical DriveOSMonitorKeyboard
8X DVD-ROM Tray Load Windows 8.1 Pro, 64-bit English Crossover 27'' 2560x1440 60Hz Internal English Backlit Dual Pointing Keyboard 
PowerCase
180W AC Adapter Dell Precision M4800 
CPUMotherboardGraphicsRAM
AMD A4-3300 Llano GIGABYTE GA-A75M-D2H  AMD Radeon HD 6410D Crucial Ballistix Sport 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 External Hard Disk LITE-ON Stock CPU heatsink fan 
MonitorPowerCase
Windows 7 Home Premium Antec 350W eMachines T3104 
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post #2 of 2
Since you are running 3-way SLI this is completely normal. Remember the top and second card will be starved for air compared to the bottom one.
This happens to me too with my 780 Lightning's, they got pretty thick coolers so the first card gets starved for air and sucks the hot air from the second card. So there is a 20-28c temp difference depending on the game.

80c is completely safe, so there is nothing to be worried about.
    
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|AMD Phenom II X6 1100T @ 4ghz| |Asus Crosshair IV Formula| |EVGA 780TI Classified| |4x2gb Corsair XMS 1600mhz CL7| 
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|840 Pro 256gb| |WD Red 2tb| |Corsair H50| |Windows 10 Pro x64| |27" QNIX QX2710 @ 2560x1440 100hz| 
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|Logitech G810 Orion Spectrum RGB| |Cooler Master 700w Silent Pro Gold| |Antec 1200 Orange mod| |Logitech G502 Proteus Spectrum RGB|  
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|JBL L890 speakers| |Emotiva XDA-2 receiver| |2x Advanced Acoustic mono amp @ 200w 8ohm| 
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CPUMotherboardGraphicsRAM
|AMD Phenom II X6 1100T @ 4ghz| |Asus Crosshair IV Formula| |EVGA 780TI Classified| |4x2gb Corsair XMS 1600mhz CL7| 
Hard DriveCoolingOSMonitor
|840 Pro 256gb| |WD Red 2tb| |Corsair H50| |Windows 10 Pro x64| |27" QNIX QX2710 @ 2560x1440 100hz| 
KeyboardPowerCaseMouse
|Logitech G810 Orion Spectrum RGB| |Cooler Master 700w Silent Pro Gold| |Antec 1200 Orange mod| |Logitech G502 Proteus Spectrum RGB|  
AudioAudioAudio
|JBL L890 speakers| |Emotiva XDA-2 receiver| |2x Advanced Acoustic mono amp @ 200w 8ohm| 
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