Computer booted up for 1 second, then shuts down

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RoronoaDSanji

Thread Starter
Joined
Dec 26, 2010
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2
hi all, first post here :D not sure if this is the right section, delete it if im wrong

today, i bought a new hard drive cause my first one is fulled, after putting it in, the computer wont boot up anymore (well, the fan, and case light went on for less than a second) notthing appeared on the screen or anything. no beep either.

here is what i got:
i7 920
asus p6t
g.skill 6gb
first hard drive : western digital black 640GB
new one: WD green 1.5TB
PSU: crosair 750W
GTX260

i think the 750W is more than enough for everything listed above, and it worked fine before i opened up my computer.

any help would be appreciated, and sorry for bad English,
if more information is needed, please let me know.

-------------------------------------------------------------

edit, just to add more information:
i also tried pull my new harddrive out, and run everything like it did, and it still didnt work.
 
Joined
Jun 10, 2010
Messages
277
hi all, first post here :D not sure if this is the right section, delete it if im wrong

today, i bought a new hard drive cause my first one is fulled, after putting it in, the computer wont boot up anymore (well, the fan, and case light went on for less than a second) notthing appeared on the screen or anything. no beep either.

here is what i got:
i7 920
asus p6t
g.skill 6gb
first hard drive : western digital black 640GB
new one: WD green 1.5TB
PSU: crosair 750W
GTX260

i think the 750W is more than enough for everything listed above, and it worked fine before i opened up my computer.

any help would be appreciated, and sorry for bad English,
if more information is needed, please let me know.
You didn't knock any of the cables out while installing it did you?

This could be a number of things, does it make any beeps when you turn it on? Does the motherbord have any diagnostic lights such as CPU, RAM etc?
 

RoronoaDSanji

Thread Starter
Joined
Dec 26, 2010
Messages
2
You didn't knock any of the cables out while installing it did you?

This could be a number of things, does it make any beeps when you turn it on? Does the motherbord have any diagnostic lights such as CPU, RAM etc?
i dont think i knock any out, i tried resecure some of them too.
no, no beep or what so ever, just fan and case light for half a second, and it only comes on once, after that, i have to turn off the power supply and then turn it back on again in order for the fan to spin again. (not sure that was confusing)

also, by diagnostic lights, did you mean light that tells you whether the CUP, RAM is working or not? if so, no, it has a green reset button and a red power button though
 
Joined
Jun 10, 2010
Messages
277
i dont think i knock any out, i tried resecure some of them too.
no, no beep or what so ever, just fan and case light for half a second, and it only comes on once, after that, i have to turn off the power supply and then turn it back on again in order for the fan to spin again. (not sure that was confusing)

also, by diagnostic lights, did you mean light that tells you whether the CUP, RAM is working or not? if so, no, it has a green reset button and a red power button though
It sounds like some essential piece of hardware (CPU, RAM) isn't working and it can't boot for that reason cause the same thing happens if you take either out and try and start it up..the beeps and the diag lights tell you if there is component missing or failure and usually why its not booting...thats why I was asking if you had any.
 
Joined
Sep 10, 2006
Messages
180
i dont think i knock any out, i tried resecure some of them too.
no, no beep or what so ever, just fan and case light for half a second, and it only comes on once, after that, i have to turn off the power supply and then turn it back on again in order for the fan to spin again. (not sure that was confusing)

also, by diagnostic lights, did you mean light that tells you whether the CUP, RAM is working or not? if so, no, it has a green reset button and a red power button though
There are two things that will normally cause this. One, there is a wire obstructing the CPU fan. If the CPU fan doesn't turn, the PSU will shut down to keep the CPU from over heating. The second is the PSU itself is overloaded. To test for this, simple disconnect the drive you just installed. If the computer works with the new drive disconnected, then you need a higher wattage PSU to get the new drive to work.
 
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