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Computer turned on and off in rapid succession

post #1 of 17
Thread Starter 
I have a

PSU: Corsair 650tx
Motherboard: ga-890fxa-ud5
Video Card: GTX 460 and GTS450
CPU: Athlon II 245 Regor

I unplugged my computer to move my GTS450 to another slot to put a GTX460 in the first. The computer turned on fine but I accidentally pulled out the SATA cable from my hard drive so I unplugged the power cord then proceeded to fix the cable.
When I plugged in the power cord the computer would turn on and off rapidly until I unplugged the power cord and it was doing this without me pressing the "Power" button.

I don't know exactly what I did but I managed to fix the problem with the PSU rapidly turning on and off but now it won't post nor beep.

I have an Artic Freezer 13 which sits high enough that I can fit my finger to touch the CPU and it's not producing and heat at all.

I don't think my motherboard is dead because I unplugged the PCI cables from the video card and the fan works.

I tried clearing CMOS via the push button, removing the battery, and I even tried using a jumper.

Does anyone have any idea what I did to my computer?
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post #2 of 17
Sounds like a short to me. Make sure you didn't drop and screws behind/on the mobo.
Bye Bye 775
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Bye Bye 775
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post #3 of 17
Standoffs installed/installed properly (none or to many is no good) ?!
Is the power button ok ?!
Remove the power button connector and use a screw driver to start the PC (short carefully the 2 pins where the PW button connector pins go).
Try another PSU.
Edited by Dromihetes - 4/13/11 at 11:37am
   
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post #4 of 17
Remove everything (except cpu) and see if it beeps. And then start working from there. If it beeps the cpu is alive (or the mobo I don't know)
1155 POWER
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post #5 of 17
Thread Starter 
I took out the motherboard and placed it on a box with only CPU, RAM, and Video Card installed and I'm still got nothing. I don't know if the PSU in this old computer is compatible. I don't know the terminology but the bigger one is only 16 or 18 pin and the one for the CPU has 4 pins.
Edited by harmor - 4/13/11 at 11:59am
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CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 GA-890FXA-UD5 NVIDIA GeForce GTX 560 Ti G.Skill 
RAMHard DriveHard DriveHard Drive
G.Skill Western Digital Samsung F3 Western Digital 
Optical DriveCoolingOSMonitor
Asus DVD Burner Hyper 212+ Windows 7 Pro 64 Asus 27" 1080p 
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My System
(18 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 GA-890FXA-UD5 NVIDIA GeForce GTX 560 Ti G.Skill 
RAMHard DriveHard DriveHard Drive
G.Skill Western Digital Samsung F3 Western Digital 
Optical DriveCoolingOSMonitor
Asus DVD Burner Hyper 212+ Windows 7 Pro 64 Asus 27" 1080p 
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Logitech Wave Corsair 750TX HAF 922 Logitech MK550 
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post #6 of 17
As the above person said, use quality psu's. Using a low brand psu will generally lead to things failing due to dirty power or things not getting the correct amount of power. That does sound like a mobo issue, or something to do with a short aswell. That's really the only thing you could do is test and see how things turn out.
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Beast
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post #7 of 17
Thread Starter 
Quote:
Originally Posted by Dromihetes View Post
Standoffs installed/installed properly (none or to many is no good) ?!
Is the power button ok ?!
Remove the power button connector and use a screw driver to start the PC (short carefully the 2 pins where the PW button connector pins go).
Try another PSU.
I think I know how I messed it up. When I was installing the second video card I pulled out the power connecter that goes on the two pins. I probably put them on the wrong pins when I reseated it.
My System
(18 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 GA-890FXA-UD5 NVIDIA GeForce GTX 560 Ti G.Skill 
RAMHard DriveHard DriveHard Drive
G.Skill Western Digital Samsung F3 Western Digital 
Optical DriveCoolingOSMonitor
Asus DVD Burner Hyper 212+ Windows 7 Pro 64 Asus 27" 1080p 
KeyboardPowerCaseMouse
Logitech Wave Corsair 750TX HAF 922 Logitech MK550 
  hide details  
Reply
My System
(18 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 GA-890FXA-UD5 NVIDIA GeForce GTX 560 Ti G.Skill 
RAMHard DriveHard DriveHard Drive
G.Skill Western Digital Samsung F3 Western Digital 
Optical DriveCoolingOSMonitor
Asus DVD Burner Hyper 212+ Windows 7 Pro 64 Asus 27" 1080p 
KeyboardPowerCaseMouse
Logitech Wave Corsair 750TX HAF 922 Logitech MK550 
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post #8 of 17
That could possibly be the problem, it would be creating a short or a loop of power if that's what happened.
Beast
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1TB WD Black Kingston v300 SSD Samsung 22x dvd writer Thermal Take Frio 
OSMonitorMonitorKeyboard
Windows 10 Pro 27" ASUS 24 inch Dell  Logitech g710+ 
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CORSAIR 850HX Fractal Design R5 Cooler Master Havoc Saitek Aluminum Mouse Pad 
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logitech Z906 
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Beast
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CPUMotherboardGraphicsRAM
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1TB WD Black Kingston v300 SSD Samsung 22x dvd writer Thermal Take Frio 
OSMonitorMonitorKeyboard
Windows 10 Pro 27" ASUS 24 inch Dell  Logitech g710+ 
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logitech Z906 
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post #9 of 17
Thread Starter 
Quote:
Originally Posted by Darkness889 View Post
That could possibly be the problem, it would be creating a short or a loop of power if that's what happened.
Since the fan on my GTX460 (w/o PCI cables connected) and cpu fan work I can assume my motherboard is still good?
The only two components that could be damaged are my CPU and possibly RAM?
Edited by harmor - 4/13/11 at 12:24pm
My System
(18 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 GA-890FXA-UD5 NVIDIA GeForce GTX 560 Ti G.Skill 
RAMHard DriveHard DriveHard Drive
G.Skill Western Digital Samsung F3 Western Digital 
Optical DriveCoolingOSMonitor
Asus DVD Burner Hyper 212+ Windows 7 Pro 64 Asus 27" 1080p 
KeyboardPowerCaseMouse
Logitech Wave Corsair 750TX HAF 922 Logitech MK550 
  hide details  
Reply
My System
(18 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 GA-890FXA-UD5 NVIDIA GeForce GTX 560 Ti G.Skill 
RAMHard DriveHard DriveHard Drive
G.Skill Western Digital Samsung F3 Western Digital 
Optical DriveCoolingOSMonitor
Asus DVD Burner Hyper 212+ Windows 7 Pro 64 Asus 27" 1080p 
KeyboardPowerCaseMouse
Logitech Wave Corsair 750TX HAF 922 Logitech MK550 
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post #10 of 17
Maybe, you'd have to test them to be 100% sure. I would test it all to make sure that something else didn't fry/die in the midst of all that.

But for the most part it could be your ram. For the most part ram failures usually create beeps on a POST, If it's not doing that it might be your cpu then.

But I would check everything like I said, just to make sure your replacing the right part.
Beast
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CPUMotherboardGraphicsRAM
Intel Core i5 2500k AsRock Z77 Extreme3 Gigabyte RX 480 8GB G1 Gaming Patriot 8GB 2133mhz 
Hard DriveHard DriveOptical DriveCooling
1TB WD Black Kingston v300 SSD Samsung 22x dvd writer Thermal Take Frio 
OSMonitorMonitorKeyboard
Windows 10 Pro 27" ASUS 24 inch Dell  Logitech g710+ 
PowerCaseMouseMouse Pad
CORSAIR 850HX Fractal Design R5 Cooler Master Havoc Saitek Aluminum Mouse Pad 
Audio
logitech Z906 
  hide details  
Reply
Beast
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500k AsRock Z77 Extreme3 Gigabyte RX 480 8GB G1 Gaming Patriot 8GB 2133mhz 
Hard DriveHard DriveOptical DriveCooling
1TB WD Black Kingston v300 SSD Samsung 22x dvd writer Thermal Take Frio 
OSMonitorMonitorKeyboard
Windows 10 Pro 27" ASUS 24 inch Dell  Logitech g710+ 
PowerCaseMouseMouse Pad
CORSAIR 850HX Fractal Design R5 Cooler Master Havoc Saitek Aluminum Mouse Pad 
Audio
logitech Z906 
  hide details  
Reply
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