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Power supply gets hot during load, but my friend's doesnt?

post #1 of 12
Thread Starter 
We both have an Antec TPN series power supplies, he has the 650 Watt version, I have the 750 Watt. We both have one hard drive, one CD drive, 5-6 fans, a fan controller, and the same CPU cooler. He has an i5 750 OC'ed to 3.75 GHz, I have a i5 670 at stock. He has a GTX 460 OC'ed, while I have a stock GTX 275. We both have good airflow in our case, our power supplies are both facing down. My floor is carpet, while his is wood. I have risers that raise the comp from the ground about 1 inch. So we both are getting the same airflow, but the problem is his is cool to the touch during load, while mine isnt. Why is this happening?


Thanks,
Sathirian
    
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post #2 of 12
Ambient air temperatures?
post #3 of 12
dust?
post #4 of 12
Thread Starter 
No dust, same ambient temps. 70 F + - 2 F
    
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post #5 of 12
have you touched both, so there isn't confusion as to what is considered warm. maybe his is the same temp, but to him it is cool and to you that same temp is warm.

How warm are we talking like burning to just slightly warm.
post #6 of 12
Thread Starter 
Not burning, but warm. I have touched both mine and his.
    
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Western Digital 1TB Caviar Blue Corsair h50 LG Flatron W2340V Logitech G110 
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Sound Blaster Tactic 3D Alpha 
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Intel Core i5 2500K Asus P8P67 GTX 480 Kingston HyperX DDR3 1333 8Gb 
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Western Digital 1TB Caviar Blue Corsair h50 LG Flatron W2340V Logitech G110 
PowerCaseMouseMouse Pad
Antec True Power New 750 Watt CoolerMaster HAF 922 Razer Naga Razer Vespula 
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Sound Blaster Tactic 3D Alpha 
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post #7 of 12
is this at idle, or under load? how do you know his was just not being loaded up when you touched it? i mean there are so many variables.
post #8 of 12
Touch is nothing.

Use a thermo-probe.
    
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post #9 of 12
Case air-flow too does have an impact on PSU temps
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Kingston UV400 240GB+Seagate Barracuda 1TB+WD B... LG HL-DT-ST GH24NS72 lapped TRUE 120 Windows 7 Pro x64 
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post #10 of 12
Thread Starter 
Both are on Chrome, browsing the internet. Is my rig pulling more watts than his? I know the 460 has lower power consumption than the 275, but he has a OC'ed quad, while I have a dual core at stock. If it is, then that would be a good explanation, but I dont think it is. Also, does hotter affect anything in the life of the power supply? Does it significantly reduce lifetime?


All of our conditions are the same.
    
CPUMotherboardGraphicsRAM
Intel Core i5 2500K Asus P8P67 GTX 480 Kingston HyperX DDR3 1333 8Gb 
Hard DriveCoolingMonitorKeyboard
Western Digital 1TB Caviar Blue Corsair h50 LG Flatron W2340V Logitech G110 
PowerCaseMouseMouse Pad
Antec True Power New 750 Watt CoolerMaster HAF 922 Razer Naga Razer Vespula 
Audio
Sound Blaster Tactic 3D Alpha 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel Core i5 2500K Asus P8P67 GTX 480 Kingston HyperX DDR3 1333 8Gb 
Hard DriveCoolingMonitorKeyboard
Western Digital 1TB Caviar Blue Corsair h50 LG Flatron W2340V Logitech G110 
PowerCaseMouseMouse Pad
Antec True Power New 750 Watt CoolerMaster HAF 922 Razer Naga Razer Vespula 
Audio
Sound Blaster Tactic 3D Alpha 
  hide details  
Reply
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