Solved Computer won't boot up

April 27, 2012 at 16:12:22
Specs: N/A
Build:
Corsair 800d
Intel core i7 3930k
2 nvidia gtx 680 graphics cards
corsair h100 CPU cooler
Corsair 32 gb ram
Ax1200 power supply
Asus IV rampage extreme mobo

And a bit of accessories like sound cards and harddrives

Anyways I just started this build yesterday and it was going great until I tried to power it all up. The first time I trid the mobo would go on and everything such as fans Gpu and sound cards would go on for a brief second then turn off then repeat it until I turned off the power. The only thing that wouldnt turn on was he cou cooler. The fans for it worked but the led lights for the fan control didnt go on.After this I uninstalled everything again to make sure everything was seated and now nothing turns on except the motherboard's start and reset along with an orange led below the Gpu. The CPU cooler still isn't going on but now nothing is except a few mobo led so I'm wondering if I did anything wrong or should I check something. I've ensured cables are in the proper spots both the mobo and CPU has their power supply in. Right now I've detached any harddrives and optical drives but still nothing. Tried turning it on its no ram and still does the same thing. So any help is appreciated


See More: Computer wont boot up

Report •


✔ Best Answer
May 4, 2012 at 05:41:22
You have not explained if the first issue was resolved and if it was ever working between then and now. As far as I am concerned, it is the same issue. If changing the CPU and motherboard did not fix things then they were not at fault. That bounces it back to the graphics card or the power supply regardless of any testing that the store had done (unless you have a monitor issue now).
I would recommend testing each component separately in a working computer one at a time (power supply, video card, monitor) and then borrowing components from the working computer to see if this one will boot up with known working components. This needs a process of elimination and you cannot assume that anything is good without testing yourself if possible. The store does not want to replace components so they will test as long as they work in their system. once they do, they will stop. they are not testing the ability of one to work with the other or under all load conditions. It may be that you need someone to look at your system that has a more experienced 'eye' and may see something you have not thought of even mentioning. This could be a friend with experience or a pro, or you will have to forget all assumptions and start over from scratch. "When all possibilities are eliminated by sound logic, whatever remains, however unlikely, is the answer..." [I may have miss quoted slightly, but you get the idea]

You have to be a little bit crazy to keep you from going insane.



#1
April 27, 2012 at 19:13:05
Did you try booting up with only one of the video cards ? The problem could be the psu. Even though it's 1200W, you need enough amps on the +12V rail.

Report •

#2
April 27, 2012 at 19:48:38
Pull everything including the motherboard and bench test it.
This involves putting the motherboard on clean cardboard (or other nonconducting nonstatic slightly 'soft' surface), installing CPU, CPU heat sink w/thermal compound, one stick of memory, onboard graphics if available or one graphics card, motherboard 'speaker', keyboard, power supply, and monitor. If you get post and BIOS set up, continue adding hard drive (one component at a time) and testing. If you do not then remove memory and see if you get no memory beep tone.
Check How To's here or Google 'Bench Test Computer' for more details.

You have to be a little bit crazy to keep you from going insane.


Report •

#3
April 28, 2012 at 14:01:33
I just finished trying to do a bench test and still the problem persisted. no power was noticable anywhere except the mobo. I went to Comp USA to get them to check my psu. Everything checked out ok. So that ruled out the psu. Any suggestions to what could be the problem would be appreciated.

Report •

Related Solutions

#4
April 28, 2012 at 19:59:22
The GTX680's require two 6pin PCIe connectors each. Have you properly connected ONE card only during your test? Have you tried the other card instead (I assume you do not have onboard graphics)? Does your power supply have the four required PCIe connectors? If not are you using the Molex Y connectors correctly? They each MUST be connected to two Molex plugs on different wire runs, NOT on two Moles plugs on the same wire bundle in order to get the correct amount of current.
Do you have the 6Pin motherboard power connector as well as the 24Pin power connector plugged into the motherboard? edit: I just reviewed a picture of your motherboard, it has a 4 Pin connector, an 8Pin connector at the 'top' and a 6 Pin connector lower down. See your manual on powering all of these connectors. I am not familiar with a board this extreme.
Do you have a different power supply to test this system with? For just testing to post with one video card, any GOOD quality 600Watt power supply would work. Have you tried (yourself) to test the new power supply on a working computer to see if it actually works?
IF you can verify that the power supply works on another computer and another working power supply does not work on this computer AND you are correctly bench testing with just the minimal equipment (no post, no beeps, etc.), then either of these must be true:
The CPU is not properly in the socket (see aligning pins, etc).
The CPU socket has bent contacts (possibly from improperly inserting CPU).
The motherboard is bad.
The CPU is bad.
Review bench test procedures and if correct, remove and examine CPU & socket carefully, if correct, return to the store with the motherboard and CPU.

You have to be a little bit crazy to keep you from going insane.


Report •

#5
April 29, 2012 at 01:01:39
I appreciate the effort in trying to help me fingers and as to PCIe connectors i have installed 2 6 pin never once forgetting to install 2 PCIe. As for the motherboard i have both the cpu and mobo power cables, 24 pin and 8 pin, also have the option to install a 4 pin with an extension i use but as far as i know its not needed.(although i did try both to see if it would work, nothing). As i stated i went to Comp USA to check my power supply they used it on some of their computer parts there and checked each individual PCIe and Sata along with mobo power. Each gave power so i dont belive it is the power supply at all. So as you stated it can only be my motherboard or cpu. The CPU has no bent contacts that i can see and is seated properly. Looks like ill have to exchange the both of them which might take some time but hopefully all goes through. When i get the new parts ill update this post hopefully put this issue to an end.

Report •

#6
May 3, 2012 at 23:12:13
Alright so I'm at it again fixed a dead CPU. So now everything is working fine except one issue now. The setup isn't displayed in a moniter. Everything is working fans going off led lights from he fans CPU cooler...everything. But when I try to connect I to a moniter it doesn't load up any screen. I'm guessing it is catching the graphics card though because I have switched from dvi-I to hdmi and the moniter switches from the two followed by going to power saver mode. Any ideas?

Report •

#7
May 4, 2012 at 05:41:22
✔ Best Answer
You have not explained if the first issue was resolved and if it was ever working between then and now. As far as I am concerned, it is the same issue. If changing the CPU and motherboard did not fix things then they were not at fault. That bounces it back to the graphics card or the power supply regardless of any testing that the store had done (unless you have a monitor issue now).
I would recommend testing each component separately in a working computer one at a time (power supply, video card, monitor) and then borrowing components from the working computer to see if this one will boot up with known working components. This needs a process of elimination and you cannot assume that anything is good without testing yourself if possible. The store does not want to replace components so they will test as long as they work in their system. once they do, they will stop. they are not testing the ability of one to work with the other or under all load conditions. It may be that you need someone to look at your system that has a more experienced 'eye' and may see something you have not thought of even mentioning. This could be a friend with experience or a pro, or you will have to forget all assumptions and start over from scratch. "When all possibilities are eliminated by sound logic, whatever remains, however unlikely, is the answer..." [I may have miss quoted slightly, but you get the idea]

You have to be a little bit crazy to keep you from going insane.


Report •

#8
May 4, 2012 at 19:17:50
Alright so to better clarify my other CPU was the problem for the first issue. The mobo wouldn't turn on because of it . Now that that problem was fixed I could have the system running for any amount of time. Everything inside is powered unlike before. Now my motherboard when booting up stops at debug error code a2 which means IDE detect. I believe that means its something to do with the harddrives. I don't know if the bios isn't loading up because of this but when doing a benchmark without the harddrives it still wouldn't show anything on the screen. I've tried both hdmi and dvi-I. I've reset the CMOS and yet nothing shows on the screen. I'm about to grab another moniter to test to see if it's my moniter that's causing this problem. Fingers crossed it is but more than likely I'll be having to Rma the board again or something else

Report •

#9
May 6, 2012 at 02:16:36
nvm ive fixed the previous issue with the moniter. All i had to do is move the sata cables around and somehow got the screen to show up. either way just set up the new build and am relieved i wont have to be making any more rma. Thank you for the help and advice fingers.

Report •


Ask Question