HELP!!! 1st build gone wrong

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NumptyBuilder

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Jul 24, 2015
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Good afternoon gentlemen , I'm 15 and I've just tried to build my first computer and I plugged it in and the light on the switch comes on , but the cpu fan and case fan come on for half a second and then nothing, no display, nothing PLEASE HELP

AMD fx 6300
Gtx 960 asus strix
Gigabyte GA-970A-DS3P
EVGA 500W, 500W
2x4gb ram
 
Solution
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Probably does not matter. However, just to be sure, two thoughts:
1. It is possible that, in the sequence you mention, you misaligned the CPU pins in the socket holes, buy I doubt that. At the time you removed the heat sink and re-did this, as long as the CPU module's pins were in the socket holes smoothly and the locking lever closed properly, things should be OK.
2. I am assuming that, when you installed, removed and re-installed the CPU cooler system, you fastened it down securely as directed.

Like madmatt30, I see the symptoms you describe as typical of a short circuit of the mobo to the case, and that's why I wrote about how standoffs must be positioned. I'd suggest you check that avenue thoroughly first before worrying about the...
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What case are you using ??

First things to check.
1. Did you install motherboard standoffs into case first before screwing the board in? ( some cases come with 5 or 6 standoffs preinstalled - that board requires 8)
2. Did you connect the 4+4 pin matx 12v cable (top left of board) as well as the main 24 pin cable?
3.recheck your front panel header connections - that scenario can happen if reset & power cables are mixed up and or if the pins for those are the wrong way round.
 
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The case is a Zalman Z1 with standoffs preinstalled, the power supply was on, I connected all the cables , maybe I haven't connected the front pannel connectors properly, tomorrow I'm dessassembling all of it and building it again and if it doesn't work I'm going to see a proffessional
 
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Your case comes with 6 standoffs preinstalled in a matx configuration - one of these may be shorting the board on an atx configuration - it would not be the first time.

I would remove the board & double check to be sure.
That board has 3 screws on the back from top to bottom ,3 in line with ram slot 4 (nearest CPU) & 2 on the front edge

Regarding front header panel connections ,the only cable you need to connect to boot is the power switch cable.
Unplug the rest from the little header - just plug the power switch one.
Top line of pins - pins 3 & 4 from the left (the first 2 pins are power led - does not matter which way round the cables are for the led but it does for the switch so try it both ways)
 
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Okay I will just connect the power switch cable on the front pannel , do the Sata power connectors need to be on the same cable for the hard drive and optical drive because I used 2 different cables
 
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Your SATA power connections are OK.

I also suspect a short circuit. As madmatt30 has said, check the standoffs carefully. One or more of the pre-installed ones could be wrong and causing the problem. There should be one standoff installed in a case hole under EACH actual hole in the mobo ideally, although sometimes one might not be there. BUT the really important thing is this: there should NEVER be a standoff in the case placed under the mobo where there is NOT a mobo mounting hole. The mobo is designed to be grounded to the case at each mounting hole, but nowhere else. So if there's a standoff in the wrong place, it probably will short out the mobo's bottom traces to the case.
 
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And also does it matter if I've put the cpu in without the lever lowered and then installed the Heat sync , and then Uninstalled heat sync and lowered lever and re-installed heat sync because I made that mistake
 
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Probably does not matter. However, just to be sure, two thoughts:
1. It is possible that, in the sequence you mention, you misaligned the CPU pins in the socket holes, buy I doubt that. At the time you removed the heat sink and re-did this, as long as the CPU module's pins were in the socket holes smoothly and the locking lever closed properly, things should be OK.
2. I am assuming that, when you installed, removed and re-installed the CPU cooler system, you fastened it down securely as directed.

Like madmatt30, I see the symptoms you describe as typical of a short circuit of the mobo to the case, and that's why I wrote about how standoffs must be positioned. I'd suggest you check that avenue thoroughly first before worrying about the CPU and heatsink.

There is one other odd possibility I'll mention in case it fits your situation. Some mobos monitor the speed of the CPU cooling fan in case it fails. If it ever fails to send a speed signal to the mobo, the BIOS will issue a warning beep through the mobo's little PZO "speaker" IF it has one, and then completely shut down the system before it even gets a high temperature reading from the CPU. This is just to be sure a CPU with no cooling system cannot overheat. However, this process normally takes several seconds at least, not the short 1-second time you describe, so I doubt this is your issue.

SOME people do not connect the CPU cooling fan to the mobo's CPU_FAN port - they may plug it into the wrong port by mistake, or they may choose to connect that fan directly to a 4-pin Molex power output from the PSU or to a third-party fan controller. IF you are not planning to connect your CPU cooling fan to the proper mobo port and IF your mobo has this type of protection, you have to make an adjustment to your BIOS Settings. To do this you need to connect the CPU fan to its proper mobo port temporarily so it can get a speed signal and boot into BIOS Setup. There you go to the CPU cooling fan configuration settings and tell it to Ignore that CPU_FAN speed system, then SAVE and EXIT. Then you can reconnect the fan as you plan. HOWEVER, as I said, unless you are doing this in your system, do NOT worry about all this detail. Your problem likely is other things.
 
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Solution
Ok thank you all for your quick and informative answers, tomorrow I will Build the PC outside the case and power it on using a screw driver to shorten the 2 power switch pins, if it works outside the case it means that the standoffs are the problem, I will update you all tomorrow.
 
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I had the same problem in my build after several diagnosis i found that the psu was faulty by doing a paper clip test and one of the wire in the 24-pin connector was lose,so i called in for a replacement and after replacing the psu it worked fine.
so i recommend you to test the power supply by doing a paper clip test,if it goes well start testing other components.

 
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Hello People

I got my PC back from the repairer and he told what I did wrong, I put the GPU into the wrong slot, I plugged in something where I shouldn't of , and someother minor problems. Atleast I learnt my mistakes for my next build it's gonna be the family computer. Thanks alot for all your help.
 
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