I can't get my computer to boot or give me beeps

chuckles2666

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Aug 29, 2013
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I recently put together a new computer, some new parts some old parts. The ram, gpu, cpu, and mb are new, hd and dvd drive are not. They were working before being moved to the current build. The computer was working fine after it was put together, then for some reason, it stopped booting up, and only gave me a black screen. There were no beep codes at first. I started taking it apart piece by piece to see if something wasn't working right and trying to boot it after each piece, then after I took the ram out I did the the 3 long beeps that shows there is a problem with the ram. I put the ram back in and it goes back to the original problem. Everything seems to be getting power, as all the fans are spinning, and the hdd seems to be spinning also. The gpu fan is erratically speeding up and slowing down though. There is no on board graphics on the mb. I've tried all the "fixes" that I have found on here already.

Thank You
 

chuckles2666

Distinguished
Aug 29, 2013
117
0
18,690
MSI ATX DDR3 2133 Motherboard 970 GAMING
AMD FD8320FRHKBOX FX-8320 FX-Series 8-Core Black Edition
Crucial Ballistix Sport 4GB Single DDR3 1600 MT/s (PC3-12800) CL9 @1.5V UDIMM 240-Pin Memory Module
Corsair CX Series 750 Watt ATX/EPS Modular 80 PLUS Bronze ATX12V/EPS12V 744 Power Supply CX750M
one stick of another 4GB ddr3 from another computer
a 500GB hdd from a laptop that already had Windows 7 Home Premium 64-bit on it
I was wrong about the gpu, its an older Nvidia by Gigabyte, with no model numbers on it.