x870 Steel Legend - Question about M.2 slots

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   I'm gonna be getting a new x870 soon and I was reading the manual online about the m.2 slots. I plan on using two m.2 drives: a samsung 990 pro 4 TB and a 1 TB (same brand). My plan is to use the 1TB as the OS boot drive and for programs. The 4TB will be for games and such. I'm wondering where they should be plugged in pre OS install and post OS install.

The very top slot or "Blazing" is the 128 gbs write speed slot and "takes first priority", according the manual. While the bottom two slots are the 64gbs write speed slots. So when I install win11 on the 1TB, should it stay in the blazing/top slot? I feel like I'd wanna use the 128gbs write speeds for downloading games on the 4TB. 

However, It's the "first priority" that's got me questioning if it'd be best to leave the 1TB with the OS in that slot. I'd appreciate any advice and info. Thanks.

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yesman18587 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15 Nov 2024 Status: Offline Points: 20	Post Options Post Reply Quote yesman18587 Report Post Thanks(0) Quote Reply Topic: x870 Steel Legend - Question about M.2 slots Posted: 16 Nov 2024 at 12:12pm
	I'm gonna be getting a new x870 soon and I was reading the manual online about the m.2 slots. I plan on using two m.2 drives: a samsung 990 pro 4 TB and a 1 TB (same brand). My plan is to use the 1TB as the OS boot drive and for programs. The 4TB will be for games and such. I'm wondering where they should be plugged in pre OS install and post OS install. The very top slot or "Blazing" is the 128 gbs write speed slot and "takes first priority", according the manual. While the bottom two slots are the 64gbs write speed slots. So when I install win11 on the 1TB, should it stay in the blazing/top slot? I feel like I'd wanna use the 128gbs write speeds for downloading games on the 4TB. However, It's the "first priority" that's got me questioning if it'd be best to leave the 1TB with the OS in that slot. I'd appreciate any advice and info. Thanks.

eccential Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Oct 2022 Location: Nevada Status: Offline Points: 4930	Post Options Post Reply Quote eccential Report Post Thanks(0) Quote Reply Posted: 16 Nov 2024 at 7:14pm
	X870 Steel Legend: M2_1 is Gen.5, directly to CPU. M2_2 is Gen.4, through chipset. M2_3 is also Gen.4, through chipset. Samsung 990 Pro is PCIe Gen4 drive, so it won't run any faster in M2_1 slot, but since it's directly connected to the CPU, it can have a slight benefit. I don't think you'll notice much if any difference.