04-30-2022 06:31 AM - last edited 3 weeks ago by ROGBot
04-30-2022 07:21 AM
04-30-2022 08:21 AM
04-30-2022 09:10 AM
Nate152 wrote:
Hi ttaneff,
Welcome to the ROG forum.
M.2_1 (A) will use the cpu lanes and will drop pciex16_1 to x8.
B and C uses the chipset lanes, use these to keep pciex16_1 to x16.
04-30-2022 12:47 PM
04-30-2022 02:59 PM
Spicedaddy wrote:
This is wrong info. The PCIE SSD will run at 4X and the graphics card at 16X as the 12900K has 20 lanes.
Graphics card would only drop to 8X if you put something in the second PCIE 8X slot.
04-30-2022 04:02 PM
MikeJeffries wrote:
I had the same question a while back
I have 1 m.2 NVME SSD that i put in m.2_1, an nvidia rtx 3090 in Pcie16_1(Gen5), with a 12900k
I put a sound card in the 3rd slot which is Pcie16(Gen4) - but I was told since it's rated only for Gen4, it doesn't take lanes away from Pcie16_1(G5) or Pcie16_2(G5) - is this true?
Is the 3090 still getting pcie gen4 x16 speed as well?
in Samsung Magician, It says I'm running the SSD at Gen4 x4 speeds from what i remember seeing.
04-30-2022 04:31 PM
Nate152 wrote:
The sound card in the third pcie slot runs at x4 from the chipset. Your RTX 3090 is running at x8 by having an ssd in the A slot, you can see this in the bios.
Running at x8 isn't too big of a deal, pcie 5.0 x8 is like pcie 4.0 x16.
04-30-2022 04:32 PM
Nate152 wrote:
The sound card in the third pcie slot runs at x4 from the chipset. Your RTX 3090 is running at x8 by having an ssd in the A slot, you can see this in the bios.
Running at x8 isn't too big of a deal, pcie 5.0 x8 is like pcie 4.0 x16.
04-30-2022 04:38 PM
MikeJeffries wrote:
Where in the bios can i see what the gpu is running at (x8 or x16)?