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Installing 2 M2 SSD's

ltjgvm
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Hi guys, I am building a new computer and decided to use two Samsung Evo 860 M2 SSD's.

The processor is Ryzen 5 2600x and the Motherboard is MSI B450 Gaming pro carbon.

I've put the 250 GB M2 in slot 2_1, its showing up and booting well  and good but the other 500 GB M2 on slot 2_2 is not being detected.

I've not connected any HDD via sata currently. 

Is this a board limitation or something else ? please help. On reversing the positions the 500 GB M2 SSD shows up in bios but the 250 GB one is not detected.

The motherboard states that using 2_1 slot disables SATA 5,6 (no problems)

and using 2_2 slot disables all the PCIe except the main 3.0 for graphics card.

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I can't say for sure, but I have had intel Z370 boards not show any drives in them at all when a single m.2 nvme drive was plugged in, and successfully installed windows in that state. So.... this doesn't answer your question, but I bet if you get an OS on there, both would be usable in windows.

 

But, a good place to start besides just throwing windows on there and seeing what happens (can always not use your key if you are worried about something going wonky while you get it sorted out, windows lets you use it for a trial period, so you can test it out that way) a bios update is always a good place to start.

Rig: i7 13700k +Contact Frame - - Asus Z790-P Wifi - - RTX 4080 - - 4x16GB 6000MHz - - Samsung 990 Pro 2TB NVMe Boot + Main Programs - - Crucial P3 2TB NVMe for photo work - - Corsair RM850x - - Sound BlasterX EA-5 - - Corsair XC8 JTC Edition - - Corsair GPU Full Cover GPU Block - - PTM 7950 - - XT45 X-Flow 420 + UT60 280 rads externally mounted - - EK XRES RGB PWM - - Fractal Define S2 - - DellAlienware AW3423DWF 34" -- Logitech Pro X Superlight - - Logitech G710+ - - LTT Northern Lights Deskpad

 

Headphones/amp/dac: Schiit Bifrost Multibit - -  Schiit Lyr 3 - - Fostex TR-X00 - - Sennheiser HD 6xx

 

Homelab/Media Server: Proxmox VE host - - 512 NVMe Samsung 980 RAID Z1 for VM's/Proxmox boot - - Xeon e5 2660 V4- - Supermicro X10SRF-i - - 128 GB ECC 2133 - - 10x8TB WD Red RAID Z2 - - 2x 800 GB SAS SSD’s (1 SLOG, 1 L2Arc) - - 45 HomeLab HL15 15 Drive 4U - - Corsair RM650i - - LSI 9305-16i HBA - - TreuNAS + many other VM’s

 

Unifi UDM Pro in front of full unifi network infrastructure

 

iPhone 17 Pro - - MacBook Air M3

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44 minutes ago, ltjgvm said:

Hi guys, I am building a new computer and decided to use two Samsung Evo 860 M2 SSD's.

The processor is Ryzen 5 2600x and the Motherboard is MSI B450 Gaming pro carbon.

I've put the 250 GB M2 in slot 2_1, its showing up and booting well  and good but the other 500 GB M2 on slot 2_2 is not being detected.

I've not connected any HDD via sata currently. 

Is this a board limitation or something else ? please help. On reversing the positions the 500 GB M2 SSD shows up in bios but the 250 GB one is not detected.

The motherboard states that using 2_1 slot disables SATA 5,6 (no problems)

and using 2_2 slot disables all the PCIe except the main 3.0 for graphics card.

Did you ever updated the Bios before?

If not, then start from there. 

CPU:i7 9700k 5047.5Mhz All Cores Mobo: MSI MPG Z390 Gaming Edge AC, RAM:Corsair Vengeance LPX 16GB 3200MHz DDR4 OC 3467Mhz GPU:MSI RTX 2070 ARMOR 8GB OC Storage:Samsung SSD 970 EVO NVMe M.2 250GB, 2x SSD ADATA PRO SP900 256GB, HDD WD CB 2TB, HDD GREEN 2TB PSU: Seasonic focus plus 750w Gold Display(s): 1st: LG 27UK650-W, 4K, IPS, HDR10, 10bit(8bit + A-FRC). 2nd: Samsung 24" LED Monitor (SE390), Cooling:Fazn CPU Cooler Aero 120T Push/pull Corsair ML PRO Fans Keyboard: Corsair K95 Platinum RGB mx Rapidfire Mouse:Razer Naga Chroma  Headset: Razer Kraken 7.1 Chroma Sound: Logitech X-540 5.1 Surround Sound Speaker Case: Modded Case Inverted, 5 intake 120mm, one exhaust 120mm.

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