Doggone, this is perplexing.
Story: had a Quad Core Q6700 in a system with an intel DG965RY, 4G DDR2 RAM, simple PCIE video card - nothing fancy. A simple school computer for my son. The screen went black. Troubleshooting on the Web made me suspect the power supply (it was not very strong - it was an old hand me down and the 4 pin cable was really stretched tight).
I bought a new Thermaltake Smart 750W PSU. Everyhting started working fine.
8-9 months later, same thing - black screen. Fans would only briefly turn on then off again (like about 10 seconds of running).
So I buy a PSU tester and the PSU checks out just fine. I figure maybe the MB is flaky, so I buy new MB, processor and of course RAM since new MB needs DDR3 and this one used DDR2. I get AMD A10 5800K with GPU, MSI FM2-A75MA-E35 MB and 8G (4G x 2) Crucial Ballistic Sport DDR3 1600MHz (
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How in the world do I still have the same problem? No video??? I have everything breadboarded. I've checked MB manual, reseated CPU (verifying no bent pins, proper orientation, no plastic cover and proper newly applied Artic silver in place), verified 4pin power connector, cpu fan is plugged in and spins. I short the pins to start the system with no memory and get 3 beeps. If I install 1 stick of ram (either stick in either slot) I get no more beeps but nothing on the monitor. I plugged my laptop into the monitor and it works fine. I should at least get bios on the monitor.
I need help!
