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New build computer will not boot

Tags:
  • Power Supplies
  • Hard Drives
  • Computers
  • Components
  • New Build
Last response: in Components
May 26, 2014 3:03:21 PM

I am trying to build a new computer, I have all the components connected, but whenever I power on the computer, the fans run, the disc drive works, the hdd spins, but I get no POST beeps and no image on the monitor. Everything is brand new, I have tried replacing both the motherboard and the power supply but even with the replacements, I can not get the computer to boot up. I have tried removing each component one by one (there isn't much, just RAM, the optical drive, and the hdd), but I have never been able to get any POST warnings. Again, this happens with 2 different motherboards and PSUs. What other troubleshooting could I possibly do?

More about : build computer boot

a b ) Power supply
May 26, 2014 3:10:40 PM

have you tried starting up pc without gpu ??
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a c 135 ) Power supply
May 26, 2014 3:12:19 PM

if the motherboard has onboard video pull the gpu and all the ram but one ram stick. make sure the 4/8 pin atx xpu power plug is conencted and the motherboard is sitting ontop off all the brass standofffs. most new motherboards dont have built in speakers any more so they wont beep. most of them have fault led for the cpu/ram/video card or a dr debug led codes.
if your trying to run an older mb and a newer cpu check with the motherboard vendor what bios file is needed to post. (older h61 wont post newer cpu without a bios update the same for some of the older amd and fx cpu.). if there no post pull the mb from the case to ruleout the mb is shorting out. put it ontop of the mb box and try and post it there.
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a b ) Power supply
May 26, 2014 3:15:14 PM

please post detailed specs incl mobo model, cpu, exact model power supply, video card etc.
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May 26, 2014 3:24:32 PM

This is a very minimal build. I have only the onboard video, one stick of ram, a 500 gb hdd and a SATA DVD-RW drive. The MB is properly fitted atop brass stand-offs, and a separate speaker supplied with the tower is plugged into the MB, so beeps are expected with this build.

Here are the specs:

MB: Asus H81M-K (I've tried using 2 different brand new ones of these)
CPU: Intel Celeron G1850 with stock heatsink
RAM: Patriot DDR3 2GB 1333Hhz
HD: Seagate 500GB 7200 RPM
PSU: ThermalTake TR2 500W (this is the 2nd PSU I have tried)
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a b ) Power supply
May 26, 2014 3:30:22 PM

does that asus board have a 'memory ok' button on the board? if so press it just in case your memory is stopping the boot. you did plug in the 4-8 pin cpu aux power i trust? and have you tried a cmos reset?
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Best solution

a c 135 ) Power supply
May 26, 2014 3:34:32 PM

look at the motherboard serial number the last 4 number need to be (0703) to post with your cpu if not you need a cpu that will post with your mb to update the bios file.
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