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Computer shut down, won't boot.

post #1 of 9
Thread Starter 
I have been slowly upgrading my PC, piece by piece. 2 days ago I swapped my Mobo for a used one I picked up at a good price on Ebay. Also, I added my SSD for the first time. I get it all put together and it doesn't boot. I move the CMOS jumper and put it back. Nothing. Pull all the RAM and I finally get beeps. Replace the RAM and all is well. Ok, install Windows fresh on my SSD. Everything goes fine. Finally, get to work overclocking! So the last day and a half I have been tweaking my OC to get the most out of it, and also a little gaming here and there. I use CoreTemp to monitor CPU temps. I monitor distance to TJMax, and my hottest core was never more than 35C to TjMax. Max vcore was 1.48, which did go to 1.504 or so under load, but it wasn't long because it wasn't stable. So I backed my OC down a bit. I did a short Prime test and then left my PC on, but logged out. I was gone for about 5hr and I come home to it turned off, my gamepad light is lit like my pc is on, my fans lights are off and my PCI NIC leds are off. My mobo light is on, SSD light is off. Of course it won't boot. I tried the CMOS jumper, no luck. Pulled the RAM, nothing. I plugged in my old HDD, nothing. The PSU is branx new, maybe 2 weeks old. The CPU was a used EBay purchase, but I've been using it a month with no issues.

Now what it does. I push power and my fan lights flash on for a split second and then shut off. I never hear anything turn on. No beeps at all.

Luckily, I still have my old cpu, psu and mobo and I will try them tomorrow. Any tips before I dive into it all?
Edited by Blacklac - 2/18/11 at 10:50pm
    
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post #2 of 9
Are you sure there's nothing shorting the power supply/motherboard or other components with the case?
post #3 of 9
Unless I'm mistaken, 1.5v is an extreme amount to be pushing to the CPU. Hopefully it's not fried. One issue I had while building my system was that to make absolutely sure all the power connections are good as it wouldn't turn on before (but as you said now you can get it to briefly power on).

By CMOS jumper, do you mean basically your switch to reset and clear the CMOS? Perhaps if you can get into the BIOS and load defaults, you can put your voltages back under control.

Sorry I couldn't be more helpful with it but good luck solving your problem!
Melchior SR-2
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Melchior SR-2
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post #4 of 9
Thread Starter 
1.5 volts is Intels max limit for the chip.

Yes, it has a jumper switch, which it a plug that you move between 3 pins. Atleast I think. My Manual said that's how to clear cmos. Lol.

I will try to leave the CMOS battery out longer tomorrow. I only left it out for about 1 minute before. Also I will recheck all my connections too.

What do you recommend for checking for a short?
    
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OCZ Vertex 460a 120GB LG SuperBlu Bluray/HD DVD drive Thermalright Archon Push/Pull corsair H75 (GPU) 
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post #5 of 9
Things like foreign screws that are left over, stuff like that. I once shorted my PSU with the case when a 4 pin to 3 pin fan connector touched the case and made it turn off D:.
post #6 of 9
Thread Starter 
Oh! My new Seasonic X650 has an ear piercing squeal when my PC is idling. When I load it up, I don't hear it. Googling led me to believe this is probably not an issue, just a nuisance. It is really faint. My buddy who was next to me, the very first time I fired the PSU up, couldn't hear it. Its really high pitched.

Edit: I want to point out, this was only while it was working. Now that it won't boot, I don't hear any PSU noise.
Edited by Blacklac - 2/18/11 at 11:08pm
    
CPUMotherboardGraphicsRAM
Q9650 @ 4.3Ghz Gigabyte P45-UD3R EVGA GTX 960 SSC G.Skill Pi PC2-8800 8GB 
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OCZ Vertex 460a 120GB LG SuperBlu Bluray/HD DVD drive Thermalright Archon Push/Pull corsair H75 (GPU) 
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Win 8.1 64bit Panasonic 50" G25 Plasma Seasonic X650 Lian Li PC-B25F 
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CPUMotherboardGraphicsRAM
Q9650 @ 4.3Ghz Gigabyte P45-UD3R EVGA GTX 960 SSC G.Skill Pi PC2-8800 8GB 
Hard DriveOptical DriveCoolingCooling
OCZ Vertex 460a 120GB LG SuperBlu Bluray/HD DVD drive Thermalright Archon Push/Pull corsair H75 (GPU) 
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Win 8.1 64bit Panasonic 50" G25 Plasma Seasonic X650 Lian Li PC-B25F 
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post #7 of 9
Thread Starter 
Hmm. No loose screws. But... I do have a 4 pin to 3 pin up against my case. I will play with that tomorrow, not home right now. Thanks for the tips. If anyone has anymore ideas, I'm all ears.
    
CPUMotherboardGraphicsRAM
Q9650 @ 4.3Ghz Gigabyte P45-UD3R EVGA GTX 960 SSC G.Skill Pi PC2-8800 8GB 
Hard DriveOptical DriveCoolingCooling
OCZ Vertex 460a 120GB LG SuperBlu Bluray/HD DVD drive Thermalright Archon Push/Pull corsair H75 (GPU) 
OSMonitorPowerCase
Win 8.1 64bit Panasonic 50" G25 Plasma Seasonic X650 Lian Li PC-B25F 
Mouse
Razer Mamba 
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CPUMotherboardGraphicsRAM
Q9650 @ 4.3Ghz Gigabyte P45-UD3R EVGA GTX 960 SSC G.Skill Pi PC2-8800 8GB 
Hard DriveOptical DriveCoolingCooling
OCZ Vertex 460a 120GB LG SuperBlu Bluray/HD DVD drive Thermalright Archon Push/Pull corsair H75 (GPU) 
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Win 8.1 64bit Panasonic 50" G25 Plasma Seasonic X650 Lian Li PC-B25F 
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post #8 of 9
If the plug is touching the case then it will definitely be the culprit. Don't attempt to turn it on again until you've isolated the issue.. it's probably not great for the PSU to keep shutting off due to it being short-circuited.

Anyway, let us know how it goes
post #9 of 9
Thread Starter 
Well, after a couple hours of swapping parts and putting things in different cases, I found it is my PSU. Everything boots fine in my old case on my old PSU. Put it directly into my new case with new PSU and it won't boot. Luckily, of the items I just bought, that one is under warranty!
    
CPUMotherboardGraphicsRAM
Q9650 @ 4.3Ghz Gigabyte P45-UD3R EVGA GTX 960 SSC G.Skill Pi PC2-8800 8GB 
Hard DriveOptical DriveCoolingCooling
OCZ Vertex 460a 120GB LG SuperBlu Bluray/HD DVD drive Thermalright Archon Push/Pull corsair H75 (GPU) 
OSMonitorPowerCase
Win 8.1 64bit Panasonic 50" G25 Plasma Seasonic X650 Lian Li PC-B25F 
Mouse
Razer Mamba 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q9650 @ 4.3Ghz Gigabyte P45-UD3R EVGA GTX 960 SSC G.Skill Pi PC2-8800 8GB 
Hard DriveOptical DriveCoolingCooling
OCZ Vertex 460a 120GB LG SuperBlu Bluray/HD DVD drive Thermalright Archon Push/Pull corsair H75 (GPU) 
OSMonitorPowerCase
Win 8.1 64bit Panasonic 50" G25 Plasma Seasonic X650 Lian Li PC-B25F 
Mouse
Razer Mamba 
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