Computer boots for a second, and then shuts down

johns13193 · July 22nd, 2009, 3:51 PM

Today I re-applied the thermal grease on my CPU. All went well, I used a small blob in the center, then reinstalled the cooler. When I went to boot it up, it started, the lights lit up, hard drives/fans spun for about a second, then it shut itself off. It didn't beep at all.

I then proceeded to take it apart completely, check the motherboard for obvious damage, and reassemble it to the minimum components (Mobo, CPU, RAM, keyboard), and then fully, to no avail.

Some Google searches led me to think that it's the power supply, so I went out and bought a 500w Antec earthwatts, but that has failed to solve my problem. I'll prolly be keeping this PSU, its pretty awesome, but any reason for my computer to not start?

argatoga · July 22nd, 2009, 4:08 PM

I'd say the most likely problem is with the motherboard. Might be the CPU or memory, but the motherboard is more likely.

Vette Boss · July 22nd, 2009, 4:25 PM

Could be a grounding issue, you unplugged something and connected it backwards. Easiest thing to do now is tear down the whole system, including the motherboard. Then put it all back together.

I've had instances where a screw has gotten between the case and motherboard, it happens to the best of us. images/smilies/wink.gif

johns13193 · July 22nd, 2009, 7:27 PM

Well, i took out everything, and just tried to run the motherboard w/ the cpu and ram out of the case, and it still didn't work. My guess is that i've messed it up somehow, maybe with static or something.

So for a new one, I was looking at the Gigabyte GA-EP45C-UD3R (http://www.newegg.com/Product/Produc...82E16813128364), since it'll work with the ddr3 ram I have. Any opinions on this?

EDIT: I tried running it without the mounting cover on, and it worked. What should I do?

syncview · July 22nd, 2009, 8:33 PM

Explain the Mounting cover please :$?

johns13193 · July 22nd, 2009, 8:38 PM

Quote:

Originally Posted by syncview

Explain the Mounting cover please :$?

http://www.hwsw.hu/kepek/cikkek/924/lga775_socket.jpg

The silver square that goes above the CPU and holds it in place

syncview · July 22nd, 2009, 8:42 PM

Clean it of any thermal paste, apply the thermal paste neatly.. Place the heatsink carefully again then try.. good luck.

johns13193 · July 22nd, 2009, 9:43 PM

Well, that didn't work. Does this mean my CPU's dead? or is it my motherboard? btw thanks for all of your help, anyone who has responded.

syncview · July 22nd, 2009, 9:53 PM

Umm, no.. Didn't you say that it was working when you didn't lock the mounting cover? is there anything touching that mounting cover.. which is shorting it with the mobo?

johns13193 · July 22nd, 2009, 10:43 PM

Well, i tried that with the GPU and nothing came up on the screen, leading me to believe that it wasn't even plugged in right (it does the same thing w/o a cpu at all). the only thing touching the cover is the CPU itself.

edit: should I try and put some paper in between them, or is that just an easy way to set everything on fire?

argatoga · July 22nd, 2009, 10:53 PM

Wait so it works when the CPU isn't secured? Check the pins and the connectors. Putting paper in between is a bad idea. It will burn.

johns13193 · July 22nd, 2009, 11:17 PM

The pins look fine, but heres a hi-res pic anyway. i had to adjust one, but it seems to be okay now.

http://i119.photobucket.com/albums/o126/johns13193/DSCF0558.jpg

July 22nd, 2009, 3:51 PM	#1
johns13193 Joined: Aug 15th, 2007 Last Online: March 14th, 2010 Location: Well, it's near Philadelphia, PA Age: 17 Posts: 339 Car: Dad's Civic, Moms '02 Toyota Sienna (deer proof) Rep Power: 22	Computer boots for a second, and then shuts down Today I re-applied the thermal grease on my CPU. All went well, I used a small blob in the center, then reinstalled the cooler. When I went to boot it up, it started, the lights lit up, hard drives/fans spun for about a second, then it shut itself off. It didn't beep at all. I then proceeded to take it apart completely, check the motherboard for obvious damage, and reassemble it to the minimum components (Mobo, CPU, RAM, keyboard), and then fully, to no avail. Some Google searches led me to think that it's the power supply, so I went out and bought a 500w Antec earthwatts, but that has failed to solve my problem. I'll prolly be keeping this PSU, its pretty awesome, but any reason for my computer to not start? __________________ C2Q q9550 2.83 @ 0.976v, GA-P35C-DS3R, 4gb DDR3-1333, 4670 1gb @ 770/846, 5.75tb of HDD, Windows 7 Pro 64-bit.

July 22nd, 2009, 4:08 PM	#2
argatoga Can't Start His Wank Joined: Oct 4th, 2005 Last Online: 5:40 AM Location: Washington State, USA Age: 26 Posts: 6,738 Car: '78 MG Midget, '78 Honda CB400t Rep Power: 361	I'd say the most likely problem is with the motherboard. Might be the CPU or memory, but the motherboard is more likely. __________________ "If you think about it breast implants aren't much different than braces. Their main purpose is to improve one's appearance, at least that's how it was in my case." - KaJun "Anyway, I'm off to eat my dick" - Austere

July 22nd, 2009, 4:25 PM	#3
Vette Boss Joined: Nov 14th, 2004 Last Online: 8:17 AM Location: United States, Britain, in time Age: 24 Posts: 3,806 Car: 2006 Volkswagen Passat 2.0T Rep Power: 82	Could be a grounding issue, you unplugged something and connected it backwards. Easiest thing to do now is tear down the whole system, including the motherboard. Then put it all back together. I've had instances where a screw has gotten between the case and motherboard, it happens to the best of us. __________________ 2006 Volkswagen Passat 2.0T. Das Auto

July 22nd, 2009, 7:27 PM	#4
johns13193 Joined: Aug 15th, 2007 Last Online: March 14th, 2010 Location: Well, it's near Philadelphia, PA Age: 17 Posts: 339 Car: Dad's Civic, Moms '02 Toyota Sienna (deer proof) Rep Power: 22	Well, i took out everything, and just tried to run the motherboard w/ the cpu and ram out of the case, and it still didn't work. My guess is that i've messed it up somehow, maybe with static or something. So for a new one, I was looking at the Gigabyte GA-EP45C-UD3R (http://www.newegg.com/Product/Produc...82E16813128364), since it'll work with the ddr3 ram I have. Any opinions on this? EDIT: I tried running it without the mounting cover on, and it worked. What should I do? __________________ C2Q q9550 2.83 @ 0.976v, GA-P35C-DS3R, 4gb DDR3-1333, 4670 1gb @ 770/846, 5.75tb of HDD, Windows 7 Pro 64-bit. Last edited by johns13193; July 22nd, 2009 at 7:33 PM.

July 22nd, 2009, 9:43 PM	#8
johns13193 Joined: Aug 15th, 2007 Last Online: March 14th, 2010 Location: Well, it's near Philadelphia, PA Age: 17 Posts: 339 Car: Dad's Civic, Moms '02 Toyota Sienna (deer proof) Rep Power: 22	Well, that didn't work. Does this mean my CPU's dead? or is it my motherboard? btw thanks for all of your help, anyone who has responded. __________________ C2Q q9550 2.83 @ 0.976v, GA-P35C-DS3R, 4gb DDR3-1333, 4670 1gb @ 770/846, 5.75tb of HDD, Windows 7 Pro 64-bit.

July 22nd, 2009, 8:33 PM	#5
syncview Joined: Oct 11th, 2007 Last Online: 9:04 AM Location: Lahore, Pakistan. Age: 21 Posts: 665 Car: Suzuki Alto...yayyy! Rep Power: 19	Explain the Mounting cover please :$?

July 22nd, 2009, 8:42 PM	#7
syncview Joined: Oct 11th, 2007 Last Online: 9:04 AM Location: Lahore, Pakistan. Age: 21 Posts: 665 Car: Suzuki Alto...yayyy! Rep Power: 19	Clean it of any thermal paste, apply the thermal paste neatly.. Place the heatsink carefully again then try.. good luck.

July 22nd, 2009, 9:53 PM	#9
syncview Joined: Oct 11th, 2007 Last Online: 9:04 AM Location: Lahore, Pakistan. Age: 21 Posts: 665 Car: Suzuki Alto...yayyy! Rep Power: 19	Umm, no.. Didn't you say that it was working when you didn't lock the mounting cover? is there anything touching that mounting cover.. which is shorting it with the mobo?

July 22nd, 2009, 10:43 PM	#10
johns13193 Joined: Aug 15th, 2007 Last Online: March 14th, 2010 Location: Well, it's near Philadelphia, PA Age: 17 Posts: 339 Car: Dad's Civic, Moms '02 Toyota Sienna (deer proof) Rep Power: 22	Well, i tried that with the GPU and nothing came up on the screen, leading me to believe that it wasn't even plugged in right (it does the same thing w/o a cpu at all). the only thing touching the cover is the CPU itself. edit: should I try and put some paper in between them, or is that just an easy way to set everything on fire? __________________ C2Q q9550 2.83 @ 0.976v, GA-P35C-DS3R, 4gb DDR3-1333, 4670 1gb @ 770/846, 5.75tb of HDD, Windows 7 Pro 64-bit. Last edited by johns13193; July 22nd, 2009 at 10:44 PM.

July 22nd, 2009, 10:53 PM	#11
argatoga Can't Start His Wank Joined: Oct 4th, 2005 Last Online: 5:40 AM Location: Washington State, USA Age: 26 Posts: 6,738 Car: '78 MG Midget, '78 Honda CB400t Rep Power: 361	Wait so it works when the CPU isn't secured? Check the pins and the connectors. Putting paper in between is a bad idea. It will burn. __________________ "If you think about it breast implants aren't much different than braces. Their main purpose is to improve one's appearance, at least that's how it was in my case." - KaJun "Anyway, I'm off to eat my dick" - Austere

July 22nd, 2009, 11:17 PM	#12
johns13193 Joined: Aug 15th, 2007 Last Online: March 14th, 2010 Location: Well, it's near Philadelphia, PA Age: 17 Posts: 339 Car: Dad's Civic, Moms '02 Toyota Sienna (deer proof) Rep Power: 22	The pins look fine, but heres a hi-res pic anyway. i had to adjust one, but it seems to be okay now. __________________ C2Q q9550 2.83 @ 0.976v, GA-P35C-DS3R, 4gb DDR3-1333, 4670 1gb @ 770/846, 5.75tb of HDD, Windows 7 Pro 64-bit.

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