Newly built computer shuts off instantly after startup - Hardware & Software

I just finished building my new computer, and as soon as it makes the click to turn on, it makes another, and turns off. The graphics card fans spin for a second, as well as the heatsink's ones and also the case's fans, but it promptly shuts down afterward. No buzzing from the buzzer, and all lights turn on that are supposed to. What could be causing this? I'm relatively certain that I have everything plugged in correctly.

what motherboard, CPU, and RAM, also check if the RAM is seated properly, me and my dad recently built a computer, didn't turn on the first time properly, I look inside and I notice the ram is sitting SLIGHTLY higher then it should, turns out it wasn't seated properly, sometimes you have to give them a good push

CPU- Intel i5 RAM- x2 4gb ripjaw ram sticks Motherboard- MSI Z68A-GD65

That p suk, are you [B]100%[/B] sure everything is connected properly?

Yeah, I just combed the entire thing twice. Unless there's some obscure cable that has to be plugged into a port that isn't the same size as it, everything is plugged in correctly.

Did you try to start it before putting it in the case? Would've been a big help.

No I didn't, the thought never crossed my mind. Guess it's unfortunately too late for that, though.

You're probably going to have to unless you want to experience true frustration. Is this your first build?

Yes, I'm getting it as an upgrade from my 4 year old laptop.

I know I already asked but, did you read the mobo manual and are [B]certain[/B] everything is where it should be?

Try flipping the voltage on your PSU.

[QUOTE=Sodisna;31522746]Try flipping the voltage on your PSU.[/QUOTE] I have no idea at all how to do that. [editline]4th August 2011[/editline] I just stripped the computer down to the bare essentials (motherboard, CPU, heatsink, RAM, PSU, and case) and it's still having the same problem, which leads me to believe that it might be a problem with something I did incorrectly with the PSU..

When you have the optical and the HDD connected to the PSU, is it through one or more PSU cords?

[QUOTE=Mr. Smartass;31522872]I have no idea at all how to do that. [editline]4th August 2011[/editline] I just stripped the computer down to the bare essentials (motherboard, CPU, heatsink, RAM, PSU, and case) and it's still having the same problem, which leads me to believe that it might be a problem with something I did incorrectly with the PSU..[/QUOTE] On the back of your PSU, there should be a flip. [img]http://h20000.www2.hp.com/bc/docs/support/SupportDocument/bph06788/c00517964.jpg[/img]

[QUOTE=Sodisna;31522971]On the back of your PSU, there should be a flip. [img]http://h20000.www2.hp.com/bc/docs/support/SupportDocument/bph06788/c00517964.jpg[/img][/QUOTE] My PSU doesn't have a switch anywhere on it. [editline]4th August 2011[/editline] [QUOTE=Beezleboss;31522931]When you have the optical and the HDD connected to the PSU, is it through one or more PSU cords?[/QUOTE] My HDD has no way for any cords other than SATA ones to connect to it. [editline]4th August 2011[/editline] I found the way that the HDD connects to power (I was a complete retard for missing it) But the problem still persists.

What's the name of your PSU?

[QUOTE=Mr. Smartass;31522389]Yeah, I just combed the entire thing twice. Unless there's some obscure cable that has to be plugged into a port that isn't the same size as it, everything is plugged in correctly.[/QUOTE] How many cables do you have conected from your PSU to your Motherboard? There should be one that's really, really big, and one 4 pin one that will plug somewhere into your MB. Sometimes the port it has to go is an 8 pin. [img]http://img7.imageshack.us/img7/1779/mbdiagram.png[/img] [editline]4th August 2011[/editline] Also don't listen to anything else on that diagram, it's really fucking old.

Check the ram is incorrectly and possibly add a post speaker (it beeps different amounts of times depending on whats wrong)

[QUOTE=zedpenguin;31525061]How many cables do you have conected from your PSU to your Motherboard? There should be one that's really, really big, and one 4 pin one that will plug somewhere into your MB. Sometimes the port it has to go is an 8 pin. [img]http://img7.imageshack.us/img7/1779/mbdiagram.png[/img] [editline]4th August 2011[/editline] Also don't listen to anything else on that diagram, it's really fucking old.[/QUOTE] Thanks so much! the processor power supply connector was being covered by the heatsink. That's the one thing that I forgot. Thanks! The whole system is working fine now.

Same problem. But the speakers crackle before it shuts down. AMD Athlon 64 X2 Core Processor 4400+ 2.31GHz. 1.75 RAM. [editline]4th August 2011[/editline] the processor power connector is in fine.

[QUOTE=Mr. Smartass;31530894]Thanks so much! the processor power supply connector was being covered by the heatsink. That's the one thing that I forgot. Thanks! The whole system is working fine now.[/QUOTE] Glad to help.

[QUOTE=Sodisna;31522971]On the back of your PSU, there should be a flip. [img]http://h20000.www2.hp.com/bc/docs/support/SupportDocument/bph06788/c00517964.jpg[/img][/QUOTE] Never suggest this again as this will destroy a computer so please just no. I am glad that OP you were able to find the solution to the problem.

[QUOTE=rsa1988;31539755]Never suggest this again as this will destroy a computer so please just no. I am glad that OP you were able to find the solution to the problem.[/QUOTE] happened to me :smith:

[QUOTE=rsa1988;31539755]Never suggest this again as this will destroy a computer so please just no. I am glad that OP you were able to find the solution to the problem.[/QUOTE] Worked fine for me when m PSU stopped working.

Yeah though that was your PSU then. Though this guy's computer was having fans spinning so that meant something wasn't getting enough power. Just to let you know that switch is to switch voltages not meant to fix the problem. If that worked with you then I do not know how that would happen.

Posting from my new computer, It works like a charm and is totally awesome.

I'm glad you're enjoying it.

[QUOTE=Mr. Smartass;31530894]Thanks so much! the processor power supply connector was being covered by the heatsink. That's the one thing that I forgot. Thanks! The whole system is working fine now.[/QUOTE] That happened to me last week while upgrading my cousins gaming rig. I was flustered as balls. And balls are fucking flustered.

Now that it's working, I'm having a problem. The motherboard is recognizing both hard drives in the BIOS (the boot one, and the general storage one), but only one is being recognized by win7. What could be causing this?

What is the unrecognized one formatted as?