Ram causing PC to not boot? How to test if RAM's faulty?

Karthius93

Honorable
Nov 11, 2013
1
0
10,510
I recently had an error when i boot my PC up and it showed "DQS training failed on previous boot, reverted to slower Dram speed."
It says DEL to resume and it brings me to BIOS. I subsequently exit and save changes because i'm afraid i may screw something up in the BIOS.

After a day or two, my PC doesn't boot up. There wasn't any beeps for the beep test. The monitor doesn't seem to receive a signal from my PC.

After finding solutions online, it was either the RAM or the CMOS batt. Took out one of the RAM and i could boot the PC up.

So the question is, how do i really test if it's the RAM that is faulty?

Is there any other hardware problems that could cause that error to show up?

I'm was using 2 4GB RAMs.