8gb @3000mhz or 16gb @2133mhz?

100%scottish · 23 Aug 2022 at 17:30

I have 16gb Corsair vengeance 3000mhz ram but its actually 2 x 8gb kits (matching) meaning all 4 dimms are occupied. I can not get xmp stable at all. Works fine in windows but games just crash. I'm assuming it's too much for the memory controller and it's actually not officially supported by my MB (aorus x470 ultra gaming). My plan is to get a 2 dimm kit that is officially supported when finances allow but in the mean time should I pull 2 sticks and run 8gb @3000mhz opposed to the 16gb @2133mhz?

100%scottish · 23 Aug 2022 at 18:34

Rob_B said:
"It depends"

Afraid that's the answer, it depends on your CPU, it depends on your workload.

Perhaps 2133 and tighten timings to the hilt if you can (?)

Just for gaming tbh, mostly gta online and cod. I might give it a try and see if I run into any issues with only 8gb. There is a noticable increase in frames with xmp on but obviously it crashes after 10 mins or so...

100%scottish · 23 Aug 2022 at 18:35

Rob_B said:
"It depends"

Afraid that's the answer, it depends on your CPU, it depends on your workload.

Perhaps 2133 and tighten timings to the hilt if you can (?)

Forgot to say, I'm really not that clued up on timings tbh. I know how to slacken them off if need be but I wouldn't know what adjustments to make to tighten them..

100%scottish · 23 Aug 2022 at 18:36

Tetras said:
Did you try e.g. 2666 through manual adjustment? Would probably work at default dram voltage, too.

Yes mate, tried right down to 2400mhz with same result unfortunately

100%scottish · 23 Aug 2022 at 19:37

Tetras said:
That's a shame, is this with the 2700X? I think I'd still go for 2133 dual channel rather than 3000 single.

Yeah 2700x mate. It would still be dual channel, just 2 sticks rather than 4.