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Rear PSU Fan

post #1 of 5
Thread Starter 
hey guyz i was moving my pc(aka rearranging my room) around and turned it on and i noticed that my rear fan was not spinning but i looked at the fan inside that is part of the psu and it was spinning. I have an antec 450 watt psu. is this normal? thanks
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
X2 4400+ (2.6ghz) DFI LP UT SLI-D ATI X1600 Pro G. Skill DDR500 (2x1GB)@250 
Hard DriveOSMonitorKeyboard
2 WD 80 gig 7200rpm (Raid 0) Windows XP Pro Samsung 20" 2ms AMD 64 X2 4400+ for sale 
PowerCase
OCZ GameStream 600watts Antec Sonata II 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
X2 4400+ (2.6ghz) DFI LP UT SLI-D ATI X1600 Pro G. Skill DDR500 (2x1GB)@250 
Hard DriveOSMonitorKeyboard
2 WD 80 gig 7200rpm (Raid 0) Windows XP Pro Samsung 20" 2ms AMD 64 X2 4400+ for sale 
PowerCase
OCZ GameStream 600watts Antec Sonata II 
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post #2 of 5
It could be thermally controlled? I think the new Seasonics work like that
    
CPUMotherboardGraphicsRAM
Opteron 148 DFI Ultra-D EVGA 7600GT KO 2x512mb Patriot LLK(TCCD) 
Hard DriveOSMonitorPower
250GB Samsung SP2504C XP SP2 17" CRT Zippy GSM-6600P 600W 
Case
Centurion 5 
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CPUMotherboardGraphicsRAM
Opteron 148 DFI Ultra-D EVGA 7600GT KO 2x512mb Patriot LLK(TCCD) 
Hard DriveOSMonitorPower
250GB Samsung SP2504C XP SP2 17" CRT Zippy GSM-6600P 600W 
Case
Centurion 5 
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post #3 of 5
Thread Starter 
ya im not sure because there isnt much dust on the fan blades, you think both psu fans would turn on if im using alot of power?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
X2 4400+ (2.6ghz) DFI LP UT SLI-D ATI X1600 Pro G. Skill DDR500 (2x1GB)@250 
Hard DriveOSMonitorKeyboard
2 WD 80 gig 7200rpm (Raid 0) Windows XP Pro Samsung 20" 2ms AMD 64 X2 4400+ for sale 
PowerCase
OCZ GameStream 600watts Antec Sonata II 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
X2 4400+ (2.6ghz) DFI LP UT SLI-D ATI X1600 Pro G. Skill DDR500 (2x1GB)@250 
Hard DriveOSMonitorKeyboard
2 WD 80 gig 7200rpm (Raid 0) Windows XP Pro Samsung 20" 2ms AMD 64 X2 4400+ for sale 
PowerCase
OCZ GameStream 600watts Antec Sonata II 
  hide details  
Reply
post #4 of 5
It could turn on for that or it could turn on only when the PSU gets too hot...

Or it could be dead
    
CPUMotherboardGraphicsRAM
Opteron 148 DFI Ultra-D EVGA 7600GT KO 2x512mb Patriot LLK(TCCD) 
Hard DriveOSMonitorPower
250GB Samsung SP2504C XP SP2 17" CRT Zippy GSM-6600P 600W 
Case
Centurion 5 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Opteron 148 DFI Ultra-D EVGA 7600GT KO 2x512mb Patriot LLK(TCCD) 
Hard DriveOSMonitorPower
250GB Samsung SP2504C XP SP2 17" CRT Zippy GSM-6600P 600W 
Case
Centurion 5 
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post #5 of 5
If this is your PSU:

http://www.antec.com/us/productDetails.php?ProdID=26450

The rear fan is indeed thermally controlled.

Quote:
Unique Dual Fans Technology: exhaust fan starts to spin when the power supply reaches certain temperatures to ensure proper airflow, the second fan spins on power up
    
CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.3 GHz ASUS P5N-D 750i SLi MSI N460GTX Hawk 1GB G.Skill 4GB PQ 
Hard DriveHard DriveOptical DriveCooling
WDCaviar Black Intel X25-V Lite-On DH-4O1S Blu-Ray OCZ Vendetta 2 
OSMonitorKeyboardPower
Vista Ultimate x64 SP2 Samsung 245BW Logitech G11 Corsair HX520W 
CaseMouseMouse PadAudio
Antec P182 Logitech G5 Rev. 2 Allsop Widescreen Mousepad X-Fi Xtreme Music 
AudioOther
Audio-Technica ATH-A700 Logitech G13 
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CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.3 GHz ASUS P5N-D 750i SLi MSI N460GTX Hawk 1GB G.Skill 4GB PQ 
Hard DriveHard DriveOptical DriveCooling
WDCaviar Black Intel X25-V Lite-On DH-4O1S Blu-Ray OCZ Vendetta 2 
OSMonitorKeyboardPower
Vista Ultimate x64 SP2 Samsung 245BW Logitech G11 Corsair HX520W 
CaseMouseMouse PadAudio
Antec P182 Logitech G5 Rev. 2 Allsop Widescreen Mousepad X-Fi Xtreme Music 
AudioOther
Audio-Technica ATH-A700 Logitech G13 
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