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Why won't my pc power on?

post #1 of 40
Thread Starter 
I took it apart to dust it and now it wont turn on. I connected 24 main power, cpu power, front headers, graphics power, hard drive power, and dvd drive power, i installed the ram. Why wont it power on? It dosent make sense to me.
Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
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Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
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post #2 of 40
did you remember to flick the power switch on the PSU back to "on"?
Dream Machine
(21 items)
 
 
My laptop
(10 items)
 
CPUMotherboardGraphicsRAM
Intel i7 4790K ASUS Maximus VI Hero EVGA GTX780Ti 16GB G.Skill Trident X 
Hard DriveCoolingCoolingCooling
Samsung EVO 500GB EK Supremacy EK GTX780Ti block Alphacool NexXxoS XT45 420 
CoolingCoolingOSMonitor
Alphacool NexXxoS UT60 280 x8 Noctua NF-A14 PWM fans Windows 10 64-bit BenQ XL2430T 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce Tenkeyless 45g Corsair AX860i Corsair 750D 
MouseMouse PadAudio
Logitech G Pro Logitech G640 Sennheiser Game One 
CPUMotherboardGraphicsRAM
Core i7 920 D0 @ 4.2GHz Gigabyte GA-X58A-UD3R rev. 2 EVGA GeForce GTX 580 6GB DDR3 OCZ Platinum @ 1600 6-8-6-24 1T 
Hard DriveHard DriveCoolingOS
Crucial C300 Samsung HDD Noctua NH-D14 with 3 NF-P14 fans Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce 87UB Corsair HX850W HAF-X 
MouseMouse PadAudio
Zowie FK Artisan Hayate ASUS Xonar Essence STX 
CPUMotherboardGraphicsRAM
Intel 3610QM N56VZ NVIDIA GT650M 2GB 8GB 
Hard DriveOptical DriveOSKeyboard
Samsung 830 256GB Fancy Blu-Ray burner Windows 64-bit backlit 
PowerMouse Pad
battery or wall yes 
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Dream Machine
(21 items)
 
 
My laptop
(10 items)
 
CPUMotherboardGraphicsRAM
Intel i7 4790K ASUS Maximus VI Hero EVGA GTX780Ti 16GB G.Skill Trident X 
Hard DriveCoolingCoolingCooling
Samsung EVO 500GB EK Supremacy EK GTX780Ti block Alphacool NexXxoS XT45 420 
CoolingCoolingOSMonitor
Alphacool NexXxoS UT60 280 x8 Noctua NF-A14 PWM fans Windows 10 64-bit BenQ XL2430T 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce Tenkeyless 45g Corsair AX860i Corsair 750D 
MouseMouse PadAudio
Logitech G Pro Logitech G640 Sennheiser Game One 
CPUMotherboardGraphicsRAM
Core i7 920 D0 @ 4.2GHz Gigabyte GA-X58A-UD3R rev. 2 EVGA GeForce GTX 580 6GB DDR3 OCZ Platinum @ 1600 6-8-6-24 1T 
Hard DriveHard DriveCoolingOS
Crucial C300 Samsung HDD Noctua NH-D14 with 3 NF-P14 fans Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce 87UB Corsair HX850W HAF-X 
MouseMouse PadAudio
Zowie FK Artisan Hayate ASUS Xonar Essence STX 
CPUMotherboardGraphicsRAM
Intel 3610QM N56VZ NVIDIA GT650M 2GB 8GB 
Hard DriveOptical DriveOSKeyboard
Samsung 830 256GB Fancy Blu-Ray burner Windows 64-bit backlit 
PowerMouse Pad
battery or wall yes 
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post #3 of 40
you get the 4 or 8 pin eps connector tha goes in around the the cpu?
post #4 of 40
Thread Starter 
Yeah i turned on the switch, and i plugged in the 8 pin cpu power
Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
  hide details  
Reply
Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
  hide details  
Reply
post #5 of 40
do you get ANY signs of power at all like mb standby leds etc?
---eYe SeVen---
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4415 mhz Gigabyte X58A-OC ASUS ENGTX560 TI DCII G.Skill 6gb 2000 mhz CL9 
Hard DriveOptical DriveCoolingOS
Intel X25-M 120GB SSD Lite On/Asus Corsair/Asus DCUII Windows 7 64-bit 
MonitorKeyboardPowerCase
Samsung 23" LED HDMI Microsoft SideWinder X4 ABS Majesty 900watt Corsair Special Edition White 600T 
MouseMouse PadAudio
Logitech G700 Xtrac PADS FAT MAT HT Omega STRIKER 7.1 
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---eYe SeVen---
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 @ 4415 mhz Gigabyte X58A-OC ASUS ENGTX560 TI DCII G.Skill 6gb 2000 mhz CL9 
Hard DriveOptical DriveCoolingOS
Intel X25-M 120GB SSD Lite On/Asus Corsair/Asus DCUII Windows 7 64-bit 
MonitorKeyboardPowerCase
Samsung 23" LED HDMI Microsoft SideWinder X4 ABS Majesty 900watt Corsair Special Edition White 600T 
MouseMouse PadAudio
Logitech G700 Xtrac PADS FAT MAT HT Omega STRIKER 7.1 
  hide details  
Reply
post #6 of 40
Thread Starter 
The light on my motherboard is on
Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
  hide details  
Reply
Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
  hide details  
Reply
post #7 of 40
power header setup wrong?
post #8 of 40
something might have gotten a static shock.....
Dream Machine
(21 items)
 
 
My laptop
(10 items)
 
CPUMotherboardGraphicsRAM
Intel i7 4790K ASUS Maximus VI Hero EVGA GTX780Ti 16GB G.Skill Trident X 
Hard DriveCoolingCoolingCooling
Samsung EVO 500GB EK Supremacy EK GTX780Ti block Alphacool NexXxoS XT45 420 
CoolingCoolingOSMonitor
Alphacool NexXxoS UT60 280 x8 Noctua NF-A14 PWM fans Windows 10 64-bit BenQ XL2430T 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce Tenkeyless 45g Corsair AX860i Corsair 750D 
MouseMouse PadAudio
Logitech G Pro Logitech G640 Sennheiser Game One 
CPUMotherboardGraphicsRAM
Core i7 920 D0 @ 4.2GHz Gigabyte GA-X58A-UD3R rev. 2 EVGA GeForce GTX 580 6GB DDR3 OCZ Platinum @ 1600 6-8-6-24 1T 
Hard DriveHard DriveCoolingOS
Crucial C300 Samsung HDD Noctua NH-D14 with 3 NF-P14 fans Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce 87UB Corsair HX850W HAF-X 
MouseMouse PadAudio
Zowie FK Artisan Hayate ASUS Xonar Essence STX 
CPUMotherboardGraphicsRAM
Intel 3610QM N56VZ NVIDIA GT650M 2GB 8GB 
Hard DriveOptical DriveOSKeyboard
Samsung 830 256GB Fancy Blu-Ray burner Windows 64-bit backlit 
PowerMouse Pad
battery or wall yes 
  hide details  
Reply
Dream Machine
(21 items)
 
 
My laptop
(10 items)
 
CPUMotherboardGraphicsRAM
Intel i7 4790K ASUS Maximus VI Hero EVGA GTX780Ti 16GB G.Skill Trident X 
Hard DriveCoolingCoolingCooling
Samsung EVO 500GB EK Supremacy EK GTX780Ti block Alphacool NexXxoS XT45 420 
CoolingCoolingOSMonitor
Alphacool NexXxoS UT60 280 x8 Noctua NF-A14 PWM fans Windows 10 64-bit BenQ XL2430T 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce Tenkeyless 45g Corsair AX860i Corsair 750D 
MouseMouse PadAudio
Logitech G Pro Logitech G640 Sennheiser Game One 
CPUMotherboardGraphicsRAM
Core i7 920 D0 @ 4.2GHz Gigabyte GA-X58A-UD3R rev. 2 EVGA GeForce GTX 580 6GB DDR3 OCZ Platinum @ 1600 6-8-6-24 1T 
Hard DriveHard DriveCoolingOS
Crucial C300 Samsung HDD Noctua NH-D14 with 3 NF-P14 fans Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce 87UB Corsair HX850W HAF-X 
MouseMouse PadAudio
Zowie FK Artisan Hayate ASUS Xonar Essence STX 
CPUMotherboardGraphicsRAM
Intel 3610QM N56VZ NVIDIA GT650M 2GB 8GB 
Hard DriveOptical DriveOSKeyboard
Samsung 830 256GB Fancy Blu-Ray burner Windows 64-bit backlit 
PowerMouse Pad
battery or wall yes 
  hide details  
Reply
post #9 of 40
Thread Starter 
Im pretty sure the headers are setup right
Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
  hide details  
Reply
Second Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
~i5 2500k~ ~MSI P67A-GD55~ ~XFX 5850 1GB~ ~(2x2GB) Corsair Gaming~ 
Hard DriveOSMonitorPower
~Samsung 500GB~ ~Windows 7 Ultimate 64-bit~ ~2x AOC 2436Vw 24"~ ~OCZ StealthxStream 600W~ 
Case
~NZXT Gamma~ 
  hide details  
Reply
post #10 of 40
How did you dust it, compressed air? I guess the standoffs must be on there since you had it working before.. lol

My computers always work worse after i clean them, fans loud, other random nonsense...
Try with 1 stick of ram, try with and w/out video card, or try onboard.. not sure.

Only things that I can think of that would cause it to not turn on at all would be shorting, dead psu, or something not plugged in right..
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