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[probe47]

Building a simple box for a relative. (MSI 870A-G54 AM3 board. AMD X4 635, 2GB Corsair Ram, Gigabyte 4550 Video Card) Put it all together and no post or video. everything spinning, lights are on. Put the video card in the other PCIE slot, no change; try another video card same result. Try a different PSU, no change. So I swear for awhile and ask Newegg for a RMA for a bad board. Then I think, why don't you I try the other new AM3 board(GigaByte 770TA-UD3) I just received. I get the same response. No post and no video. I'm thinking it must be something I am doing but I have replaced just about everything with no change. On the second motherboard, I never put it in the case. Just placed it on the case, installed the CPU, Heat sink, Video card and RAM. Any suggestions on what I could check/fix or did I just get lucky and buy 2 defective boards. Any assistance would be greatly appreciated.

 

[Peter Trend]

You could have gotten "lucky". Do you have a second CPU to test with?

Try mobo+power+cpu with no ram or gpu. You should get ram not present warning beeps in POST. If you don't get those, POST isn't running, or your speaker isnt working/plugged in. If POST isn't running, even with a known good PSU and no ram, its a CPU or motherboard issue. 50/50 whether you have two broken boards or one broken CPU.

You definitely connected the 12v CPU power connector to the board?

 

[Peter Trend]

Did you clear the CMOS before trying to boot? You usually need to every time you install a new CPU. Refer to your motherboard manual for how to do this, there is usually a jumper or switch, otherwise you will have to pull out the battery and short the two terminals together for ~30 secs and replace it again.

 

[probe47]

Tried the mobo+power+cpu with no ram or gpu. Got one long beep (Award Bios). Could the problem be the CPU? That is about the only thing I have not changed. I can't remember getting a new AMD CPU that was bad usually it is the board. I suppose it could be.

 

[Peter Trend]

If you got one long beep that means your motherboard has detected a ram problem, which means POST is running. That usually means the CPU isn't fried. If I were you now I would be looking to send back both motherboards. In my expeience, it is nearly always the motherboard with the problem.

Good luck!

 

[probe47]

Thanks for all the help. I am doing the RMA's today.