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Computer won't boot. Please help.

post #1 of 13
Thread Starter 
So I was playing Team Fortress 2 as usual tonight when my screen went black and my PC shut off. I pressed the power button and nothing happened. I unplugged it for 10 minutes or so and came back to find it started up.
When I logged on, I started up FireFox to find out what happened and everything was fine for a few minutes, but then it happened again. I tried the same tactic, but after 20 minutes or so, the PC still wont start up.
I press the switch off and on on the PSU, then press the power button and lights go on in the case as well as the fans spin for a brief second before stopping and going out.
I can see the green light on my motherboard that shows it's receiving power
I don't have anything overclocked and just upgraded the BIOS today.
This PC is only 2 months old, and 700 watts should be fine for supporting my system.

Please help.
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post #2 of 13
PSU prolly died.
    
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G skill Ripjaws 12 gb Samsung ssd 120 gb sata III WD Velociraptop 300 gb x 2 LG Blu ray drive 
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EK-FC7950 with EK-7950 Backplate FC8 30 watt per channel Bitspower fittings Feser 360 rad (Push Pull) 
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XSPC 240 rad (Push Pull) Corsair SP 120 mm static x10 Corsair AF 120 mm  Bitspower 250 reservoir 
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Heat killer 3.0 Koolance chipset water block EK-FC7950 with EK-7950 Backplate MCP35X2 with stand 
OSMonitorKeyboardPower
Windows 7 Ultimate Acer 27" x 3 (eyefinity) Logitech G510/CM Storm Mechanical Keyboard Seasonic 1250 watt X series with moddyi Cable set. 
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post #3 of 13
Doubt its PSU. Unplug it for 24 hours. The board will power down and reset CMOS. See if it boots. Could be something grounding out.

If that doesn't work. Take everything out and install carefully. Watch all wires to make sure mobo is not grounding out. You can always rebuild it outside the case. Put the mobo on a cardboard box. If it still doesn't work, you need to troubleshoot.

Disconnect everything from the mobo except Ram. If you do not have a micro speaker get one. See if it post with nothing else except Ram. Unplug HDD,optical and graphics. If it posts, add each piece 1 by 1 till you find the problem.

Try a different PSU.

Asus told me 20% of cmos chips go bad. You may have to RMA mobo.
Edited by jimibgood - 8/23/09 at 8:56pm
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post #4 of 13
This sounds heat related, what type of cooler are you using? reseat the cooler with new tim and make sure it is spread very thin, almost see through. What temps are you getting in the case and cpu?
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post #5 of 13
Yeah I was thinking heat also, reseat your HSF with some good TiM (AS5, OCZ Freeze, etc.)
    
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post #6 of 13
heat related issue to PSU.

one or the other.

what happened in the two months you were using your computer?
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by FREELINE57 View Post
This sounds heat related, what type of cooler are you using? reseat the cooler with new tim and make sure it is spread very thin, almost see through. What temps are you getting in the case and cpu?
My CPU was maybe low 40's at most, so it should have been fine. I don't have aftermarket coolers on anything, but I have two 120mm side-case fans, one as intake, one outtake.

Quote:
Originally Posted by k0rnh0li0 View Post
heat related issue to PSU.

one or the other.

what happened in the two months you were using your computer?
Not really sure what you mean by what happened, but everything has been fine for the most part, but as of last week it started acting up, I was getting errors that my monitor was out of scan range while playing games, even though nothing should have been affecting the resolution or refresh rate; hyper transport sync flood errors on boot occasionally after the previous error; and now this.
I had suspected there were some problems with drivers, and I was planning on backing up my files before a reformat last night before this current problem crashed it, but if it's not even booting, I don't think reformatting would do any good.

I'm going to leave it off and unplugged for most of the day to reset the CMOS to see if that'll do anything.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 720 @ 3.3GHz ASUS M4A78T-E AM3 AMD 790GX HIS Radeon HD 4890 1GB G.SKILL 4GB DDR3 1333 
Hard DriveOSPowerCase
Western Digital Caviar Black WD6401AALS 640GB Windows 7 RC OCZ StealthXStream 700W COOLER MASTER Centurion 590 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 720 @ 3.3GHz ASUS M4A78T-E AM3 AMD 790GX HIS Radeon HD 4890 1GB G.SKILL 4GB DDR3 1333 
Hard DriveOSPowerCase
Western Digital Caviar Black WD6401AALS 640GB Windows 7 RC OCZ StealthXStream 700W COOLER MASTER Centurion 590 
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post #8 of 13
Quote:
Originally Posted by redflag46 View Post
This PC is only 2 months old, and 700 watts should be fine for supporting my system.
Redflag46, the age of the power supply shouldn't really matter. I've received a few items that were faulty out of the box. Is your computer on a surge protector/ups device? Do you have a multimeter handy? If so try measuring the rails(12volt, 5volt and 3.3volt) at idle and load to see if they are within specification. Here is a guide that explains this process: http://www.clunk.org.uk/forums/guide...ing-guide.html. This process literally takes a minute to do.

Let us know

Good luck
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Workstation
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Athlon II X4 620 Asus M4A785-M Asus 5770 G.Skill 8GB DDR2-800 
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Tagan Black Pearl 
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post #9 of 13
Thread Starter 
Alright, I'll look around to see if I have a multimeter and I'll give that a try. And yes, my computer is on a surge protector.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 720 @ 3.3GHz ASUS M4A78T-E AM3 AMD 790GX HIS Radeon HD 4890 1GB G.SKILL 4GB DDR3 1333 
Hard DriveOSPowerCase
Western Digital Caviar Black WD6401AALS 640GB Windows 7 RC OCZ StealthXStream 700W COOLER MASTER Centurion 590 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 720 @ 3.3GHz ASUS M4A78T-E AM3 AMD 790GX HIS Radeon HD 4890 1GB G.SKILL 4GB DDR3 1333 
Hard DriveOSPowerCase
Western Digital Caviar Black WD6401AALS 640GB Windows 7 RC OCZ StealthXStream 700W COOLER MASTER Centurion 590 
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Reply
post #10 of 13
Thread Starter 
Ok, so the strangest thing. It had been almost 24 hours since I had unplugged, so I while I was reading through my mobo's manual and found something about resetting the CLRTC RAM, which my friend tells me is the same as the CMOS. I reset that following the instructions in the manual, plugged in my power cable and... it didn't work. It did the same thing as before where it turned on for a brief second then died.
Annoyed, I took off the side panel of the case again and decided to try and listen for any possible problems while trying to start it. Then, out of no where, it started normally.
I have no idea why it would work fine without the side panel off, but I'm a little worried to put it back on at this point. My friend (same friend as before) tells me that some cases have a sensor for when the side panel is off and it might have screwed up. Or what I'm thinking is that the 120mm fans I had on the side were shorting out or something and preventing it from booting, so without those on, it seems to be working.

Thoughts? Suggestions? Criticism?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 720 @ 3.3GHz ASUS M4A78T-E AM3 AMD 790GX HIS Radeon HD 4890 1GB G.SKILL 4GB DDR3 1333 
Hard DriveOSPowerCase
Western Digital Caviar Black WD6401AALS 640GB Windows 7 RC OCZ StealthXStream 700W COOLER MASTER Centurion 590 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 720 @ 3.3GHz ASUS M4A78T-E AM3 AMD 790GX HIS Radeon HD 4890 1GB G.SKILL 4GB DDR3 1333 
Hard DriveOSPowerCase
Western Digital Caviar Black WD6401AALS 640GB Windows 7 RC OCZ StealthXStream 700W COOLER MASTER Centurion 590 
  hide details  
Reply
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