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PC not booting

post #1 of 12
Thread Starter 
I have a dfi lanparty, amd 9950, 4gb ram, 4760 graphics card and tagan 1300w psu
For the past 2 days the machine has been running fine - no problems at all. I had the cpu overclocked to 3033mhz and the 4760 to 850mhz/1045mhz.

I switched off last night and this morning it refuses to work. Power comes on as normal but the hard drive light stays on even with them unplugged and I can't open the dvd drive and the monitor is just blank.

I have reset the cmos but still the same.

Any reasons/ideas as to why?
post #2 of 12
I'd guess either the powersupply or motherboard. Try another PSU if you can.
    
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Hard DriveOptical DriveOSMonitor
2 x 1TB WD Caviar Black Samsung SH-S223F DVD-DL/RAM Burner Windows 7 Ultimate x64 27" Olevia 527V 
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Logitech G15 Rev. 2 Corsair 750TX CoolerMaster RC-690 Logitech LX7 Cordless Laser 
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post #3 of 12
Motherboard is most likely dead.

Try testing the PSU on another board, or trying a different PSU. If same cause, then it's most likely the Motherboard.
1880478
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Core i5-750 @ 4.0GHz [200x20] [1.44V] [B#L928B214] MSI P55-CD53 [1.5 BIOS] GeForce 9800GT 512MB 4GB Corsair XMS3 DDR3 @ 1600MHz [9-9-9-24][1.65V] 
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30GB OCZ Vertex, 500GB WD Caviar Lite-On DVD-DL Burner Windows 7 Professional x64 Samsung 216BW 1680x1050 
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1880478
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Core i5-750 @ 4.0GHz [200x20] [1.44V] [B#L928B214] MSI P55-CD53 [1.5 BIOS] GeForce 9800GT 512MB 4GB Corsair XMS3 DDR3 @ 1600MHz [9-9-9-24][1.65V] 
Hard DriveOptical DriveOSMonitor
30GB OCZ Vertex, 500GB WD Caviar Lite-On DVD-DL Burner Windows 7 Professional x64 Samsung 216BW 1680x1050 
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post #4 of 12
yeah try another psu. I think you motherboard isn't posting if its not a psu problem. Check all your connection and make sure the right cables are at the right place.
    
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|Intel Core i7 970| |Asus Rampage III Formula X58| |Evga GTX580 Sli| |Evga GTS450 physx| 
RAMHard DriveHard DriveHard Drive
|6GB DDR3 2000Mhz Corsair Dominator GT| |Intel X25-M 160GB| |WD VelociRaptor 300GB Raid 0| |WD 4TB Storage| 
Optical DriveCoolingOSMonitor
|Samsung Multi-DVD Writer| |Custom H2O Loop| |Windows 7 Ultimate 64Bit| |Samsung 24" 2493HM| 
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|Logitech G19| |Corsair AX1200W| |Corsair Obsidian 800D| |Logitech G9| 
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post #5 of 12
Every time I've had a problem with a motherboard refusing to POST, it's been because of bad memory. Before you start moving heavy things around, try booting with a single stick of memory, and if it boots, find which stick is causing the problem.

If all of the fans are coming on, lights are lighting up, and hard drives are spinning up, then it's not a PSU problem, and if it's not psu or memory, the above posters are probably right... mobo issue.
Finally
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Finally
(13 items)
 
  
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Hard DriveOSMonitorKeyboard
WD 1tb/7200/32 7 ultimate x64 ASUS VW266H standard membrane 
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post #6 of 12
Thread Starter 
even a reset doesnt do anything?
Edited by Milo - 12/23/08 at 2:28pm
post #7 of 12
The first thing you need to do is run your system with the fewest things plugged in as humanly possible. This means disconnect your CD ROM drive, any PCI cards (except your vid card of course), unplug all case fans, all case connectors like HDD LED, reset, etc (except of course for the power + and - plug). Also disconnect everything like your internet, usb devices, etc. All you need externally is a power cord, monitor cord, and keyboard. This also means running with just one stick of RAM as previously suggested. If it doesn't boot, try just the other stick. Still nothing? Try your RAM in someone else's computer. If it works, it's not your RAM. Try resetting the CMOS one more time now that your system is running off minimum components. Next easiest thing to test is the video card. Try your video card in a friend's rig. If it works, you can eliminate that.

If you've verified both sticks of RAM and the video card are good, then double check your connections. Make sure the 24pin and 4pin board power connectors are secured. Make sure the HDD power cord and SATA cable are secure. Reseat the video card. Make sure the RAM is secure. Still nothing?

Your problem is likely either your board or PSU, with the board being the most likely culprit.
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White Whale
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-4770K Gigabyte GA-Z87X-UD4H MSI TwinFrozrIII 7950 2x8GB Crucial Ballistix Sport XT 
Hard DriveCoolingOSMonitor
250GB Samsung Evo Noctua NH-D14 Windows 7 Professional 64-bit 24" Samsung ToC T240 1920x1200 
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Saitek Eclipse (Blue LED) 660W Seasonic Platinum SS-660XP Corsair 600T (white) OCZ Equalizer 
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XTrac Ripper 17" x 12" 
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post #8 of 12
Great post Durch +rep.

All I can say is that I think that if the board is indeed bad, its pretty likely that a power surge killed it. Surge protectors are pretty cheap, and help keep your components alive.

Good luck
post #9 of 12
Thread Starter 
UPDATE

I have tried different mobos, graphics card etc and still the same. I tried the psu in another machine and it does the same - hd led stays lit and I can't open the dvd rw drives.

I tried the psu in my backup PC - AMD slot A 1Ghz and although I can get into bios hd/dvd drives are not detected and the machine will not boot.

I'm quite disappointed really as the psu is a 1300W Tagan.
post #10 of 12
1300W is overkill. Plus I've never even heard of that brand.
1880478
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-750 @ 4.0GHz [200x20] [1.44V] [B#L928B214] MSI P55-CD53 [1.5 BIOS] GeForce 9800GT 512MB 4GB Corsair XMS3 DDR3 @ 1600MHz [9-9-9-24][1.65V] 
Hard DriveOptical DriveOSMonitor
30GB OCZ Vertex, 500GB WD Caviar Lite-On DVD-DL Burner Windows 7 Professional x64 Samsung 216BW 1680x1050 
KeyboardPowerCaseMouse
Razer Lycosa Corsair 650TX Antec Twelve-Hundred Razer Salmosa 
Mouse Pad
A Skylit Drive Custom Mousepad 
  hide details  
Reply
1880478
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-750 @ 4.0GHz [200x20] [1.44V] [B#L928B214] MSI P55-CD53 [1.5 BIOS] GeForce 9800GT 512MB 4GB Corsair XMS3 DDR3 @ 1600MHz [9-9-9-24][1.65V] 
Hard DriveOptical DriveOSMonitor
30GB OCZ Vertex, 500GB WD Caviar Lite-On DVD-DL Burner Windows 7 Professional x64 Samsung 216BW 1680x1050 
KeyboardPowerCaseMouse
Razer Lycosa Corsair 650TX Antec Twelve-Hundred Razer Salmosa 
Mouse Pad
A Skylit Drive Custom Mousepad 
  hide details  
Reply
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