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fans run 100% at start up

post #1 of 7
Thread Starter 
When I power on the system, the cpu and the case fans runs at 100 percent for about 3-4 seconds until it goes normal and begins to boot up with windows. I've overclocked the gpu (8800gts 512mb) by a tad (700 core) and the 2500k to 4.7 with 1.345v. Do the overclocks have an effect on start ups with the system that causes the fans to run at 100 percent when powered on?
    
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2500k Asus p8p67 pro sapphire 290x tri-x 2x2gb G.skill 
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post #2 of 7
Mine do it to, just for a short second. I think it's just the fans getting up to speed.
post #3 of 7
It should be a normal thing. Always happens to mine. Run at full speed when I start up the computer for a few seconds. Nothing to worry about.
post #4 of 7
Completely normal.
Nothing wrong here.
    
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CPUMotherboardGraphicsRAM
Xeon w3680 Gigabyte X58A-UD3R GTX 295 Engineering Samples 2X Corsair XMS3 
Hard DriveHard DriveCoolingOS
Sandisk SSD Seagate Corsair H50 W7 Ult 
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Viewsonic VA1912wb Viewsonic VA912b K350 CM HAF 
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Logitech M570 
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post #5 of 7
THe fans are automatically turned on to 100% so that if the oc makes the computer too hot, it won't cause as much damage or no damage at all. In other words, its just a safety feature.
My System
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2500k 5.0 ghz 1.39v Asus p8p67 deluxe SLI 465 4 gb gskill 1600mhz Cas 6 
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My System
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CPUMotherboardGraphicsRAM
2500k 5.0 ghz 1.39v Asus p8p67 deluxe SLI 465 4 gb gskill 1600mhz Cas 6 
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ocz vertex 2 60 gb 650 watt 
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post #6 of 7
Thread Starter 
Awesome, appriciate it guys
    
CPUMotherboardGraphicsRAM
2500k Asus p8p67 pro sapphire 290x tri-x 2x2gb G.skill 
KeyboardPowerCaseMouse
Click Clacks  Corsair 750w CM haf 932 G500 
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CPUMotherboardGraphicsRAM
2500k Asus p8p67 pro sapphire 290x tri-x 2x2gb G.skill 
KeyboardPowerCaseMouse
Click Clacks  Corsair 750w CM haf 932 G500 
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post #7 of 7
Completely normal. It happens before the PWM signals kick in to slow them down again.
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i7 4820K Rampage IV Extreme EVGA GTX 670 4GB SC+ EVGA GTX 670 4GB SC+ 
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i5 3570K Gigabyte GA-Z77X-D3H ADATA AX3U2400GW8G11-DG2 Plextor M5S 128GB 
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WD Green 500GB Seagate ST3000DM001 3TB Seagate ST3000DM001 3TB LG GH22NS30 
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Succubus
(13 items)
 
Spriggan
(13 items)
 
 
CPUMotherboardGraphicsGraphics
i7 4820K Rampage IV Extreme EVGA GTX 670 4GB SC+ EVGA GTX 670 4GB SC+ 
RAMHard DriveHard DriveHard Drive
CMX16GX3M4A1600C9 Plextor M5S 256GB Plextor M5S 256GB WD Black 1TB 
Optical DriveOSPowerCase
LiteOn iHBS312 Win8.1 Pro x64 Seasonic X-750 Corsair C70 
Audio
X-Fi Titanium 
CPUMotherboardRAMHard Drive
i5 3570K Gigabyte GA-Z77X-D3H ADATA AX3U2400GW8G11-DG2 Plextor M5S 128GB 
Hard DriveHard DriveHard DriveOptical Drive
WD Green 500GB Seagate ST3000DM001 3TB Seagate ST3000DM001 3TB LG GH22NS30 
CoolingOSPowerCase
Silver Arrow Win7 Ultimate x64 SP1 Seasonic S12+ 500W Fractal Define R2 
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