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First pc build problems

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  • Build
  • Components
Last response: in Components
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October 15, 2014 1:40:50 PM

I just built my first pc and booted it up, all the fans stayed spinning for 3 seconds then went off after 6 seconds they came back on for 3 seconds they keep going on and off like this and have been for the last 5 minuites the speaker gives out 2 quick beeps and one long one also everything else powers up including the graphics card when I plugged it into my monitor it says no signal
can someone please help?

More about : build problems

October 15, 2014 1:44:00 PM

Remove all but the CPU and PSU. See if it will boot with just those two things connected to the motherboard.

If yes,

Start adding memory and other things one by one until it fails.

If no,

Check your power connectors and make sure they're plugged in properly. There is typically a large Motherboard connector from the PSU and an additional power connector (4-6PIN) that goes next to the CPU socket.
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October 15, 2014 1:48:32 PM

ok so i just done that and its doing the exact same thing

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October 15, 2014 1:49:24 PM

What motherboard to you have so we can look up that beep code?
Please list full system specs.

Probably a video card problem. Is it a dedicated GPU? If so, does the GPU require a connection from the PSU (and do you have it connected)? Reseat the GPU and make sure it is firmly in place.
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October 15, 2014 1:52:16 PM

motherboard: gigabyte ga-z87-hd3
Ram: 8gb corsair vengence 1600mhz
GPU: msi gtx 970 gaming 4g
PSU:corsair cx600m
CPU: i5 4690k
case: sharkoon t9
HDD: wd green 2tb
SSD: samsung 840 evo 120gb
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October 15, 2014 2:04:00 PM

One possibility is that you don't have the latest bios for your motherboard (F7). That bios update is required in order to work with the Haswell refresh CPUs.

Another high possibility is that your motherboard is shorting out on the case. Did your case come with, or did you install the standoffs?

If you have done all in the above posts, and still haven't found the problem, I'd 'breadboard' the motherboard. This means taking the motherboard out of the case (you can leave the CPU/ram installed), then hook up both the 24pin and the 8pin connectors from PSU to the motherboard. Plug the monitor into the integrated graphics port. Since you won't have the case power on switch connected to the motherboard at this point, you'll need to short the two power_on pins by using a screwdriver to touch them both at the same time. See if you still get the beep code.
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October 15, 2014 2:14:45 PM

i installed my standoffs, i will take the motherboard out and do that now
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October 15, 2014 2:31:39 PM

ok i have done that and the same thing is happening and nothing is appearing on the screen could it possibly somthing to do with the cpu? i have checked and no pins are bent
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October 15, 2014 2:34:07 PM

Give this a shot, I want to test something. Press the 'end' key while starting the computer. Does it bring you into Qflash?
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October 15, 2014 2:37:52 PM

plugged my keyboard into the usb and mashed end, nothing happened
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October 15, 2014 2:39:46 PM

Damn. Just to be sure, HOLD the end key down while powering on, not mash.
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October 15, 2014 2:43:04 PM

nope nothing, the computer doesent seem to stay on long enough, its aways the same, on for 3 seconds off for 6
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October 15, 2014 2:49:28 PM

Was hoping that would get you into Qflash so we could flash your bios. Was told that you could do it this way, even with an unsupported CPU as it does not require you to get into DOS to use. I've never tried that before, but I don't like that it didn't work.

So we're down to one of two things as far as I can tell.

1. Your motherboard doesn't have the latest bios so it's not recognizing the CPU. If this is the case, you need to install a non "refresh" haswell CPU in order to flash (since the above didn't work). Assuming you don't have that type of CPU lying around, the only way to do this would be to bring it in somewhere.
2. You have faulty hardware somewhere. By breadboarding the system, you pretty much ruled out user error. If this is the case, it's time to start sending parts back (RMA) and hoping it fixes you up. I'd start with the motherboard.

Let's see if anyone with fresh eyes comes along and thinks of something I didn't before you start RMAs though.

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October 15, 2014 2:52:14 PM

One quick thing to try. Nice and simple. Reset CMOS. You never know.
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October 15, 2014 3:24:35 PM

reset CMOS, dident work.
thanks a lot for all the help man, i packed it up for now and will try again tomorrow

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October 16, 2014 10:40:44 AM

One other thing to try, try with just one stick of ram, in different slots. Might get lucky.
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October 16, 2014 12:23:17 PM

i think its the cpu, one of the pins are bent on the socket, would that cause it to turn on and off like this? and also would it be the cpu thats broken or the socket?


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October 16, 2014 2:21:05 PM

Yeah, if a pin is bent, you likely found the problem right there.

Try using a mechanical pencil without any led in it to grab the pin and straighten it. Sometimes you get lucky and it works. Or a credit card can do the trick as well, using it to line up the pin with the entire row. They break off very easily, so be careful.
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