Predator G3-605 RAM Slots

I am having trouble with my old PC. First then Serial No. characters: DTSQYEG110 ( https://www.acer.com/ac/en/US/content/support-product/6021?b=1&pn=DT.SQYEG.110 )
When I turn it on it beeps 3 times. short pause, then 3 beeps again. After that it turns itself off and restarts the process by itself.
I thought its a RAM issue, so I tried to run it with just one (4GB) instead of 2 (8GB). Sometimes the beeping stays the same but the PC does not restart itself and sometimes it works, and the pc turns on.
I now have 2 completely new Memory Sticks here (8GB Crucial Ballistix Sport DDR3-1600 DIMM CL9 Dual Kit) and I am wondering what slots to use, since its different for every motherboard.

It would be awesome if someone could help me out with this.
1. question: Any idea what those beeps mean.
2. question: which slots are the correct slots to use with a Dual Kit (2 Memory Sticks).

I unfortunately couldnt find these information by myself.

Thanks a lot in advance!

- uFreaky

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billsey

The three beeps means base 64K RAM failure, it's one of the early tests during POST and typically means either bad memory or a bad motherboard. Two sticks should be placed in like colored slots, I believe in the one closest to the processor and the third counting away from the processor when you have two. With four sticks you then populate 2 & 4. Memory sticks are not required to all be the same size, but they do have to be the same speed. The motherboard also supports configurations of a single stick and three sticks. If you put two in the same size they're switched into dual channel mode, if they're of different sizes it stays in single channel mode.

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