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Nvme & GPU bandwidths

zinet
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Hi guys. 

 

I am currently running a AM4 motherboard setup Rog x470-f with 2 nvme's. The issue is, i am currently plugging my GPU (8x) on a lower slot and not in the 16x lane due to bandwidth split.

What motherboard can I upgrade to where i'll be able to use 2 nvme's and plug my GPU in the 16x lane without interfering it?

 

Mobo: Asus Rog x470-f

Storage: 500gb WD black & 1t WD black

CPU: Ryzen 7 3800x

 

Thanks guys

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What GPU do you have ? Because unless you have a 2080ti or something that is capable of saturating x8 bandwidth. It's not worth switching boards for a negligible performance increase. 

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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1 minute ago, zinet said:

EVGA 1080 ftw acx

Yea you won't be noticing a whole lot better performance. Since the card barely Saturates x8 bandwidth. Keep the board. 

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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1 minute ago, TofuHaroto said:

Yea you won't be noticing a whole lot better performance. Since the card barely Saturates x8 bandwidth. Keep the board. 

Thanks, also if i were to upgrade on a GPU lets say 2070. Will i be able to plug it in the 16x lane without any interferance? PC doesnt tend to boot if i do that.

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Just now, zinet said:

Will i be able to plug it in the 16x lane without any interferance?

Wait so only the bottom slot works?

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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20 minutes ago, zinet said:

Hi guys. 

 

I am currently running a AM4 motherboard setup Rog x470-f with 2 nvme's. The issue is, i am currently plugging my GPU (8x) on a lower slot and not in the 16x lane due to bandwidth split.

What motherboard can I upgrade to where i'll be able to use 2 nvme's and plug my GPU in the 16x lane without interfering it?

 

Mobo: Asus Rog x470-f

Storage: 500gb WD black & 1t WD black

CPU: Ryzen 7 3800x

 

Thanks guys

You would need a different CPU on a different chipset. Non-workstation boards, from both Intel and AMD assign 16 lanes to the first x16 slot, and if ANYTHING is plugged into the second x16 slot, both slots become x8. There is nothing out there that doesn't do this.

 

You would need a threadripper or a xeon board not based on the desktop chipset:

For example the C264 is still the desktop chipset:

https://www.asus.com/ca-en/Commercial-Servers-Workstations/WS-C246-PRO/

 

 

where as the  C422 does what you're asking

https://www.asus.com/ca-en/Motherboards/WS-C422-PRO-SE/

Multi-gpu.png

 

If you're only dealing with m2 NVMe's, read the manual for which slot you can't use if the m2 is populated.

 

 

image.thumb.png.52c337e26c376b3825ab055bedb8c6cc.png

 

image.thumb.png.c3b896103067fcc2025f9cde3ba39543.png

image.thumb.png.9180ef36693114803f96e34042943fc4.png

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1 minute ago, zinet said:

Sometimes it boots, sometimes it doesnt.

Well that for the most part doesn't really have to do with lanes. 

Clean the slot from any dust and then check. 

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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1 minute ago, zinet said:

This is the current installement. And if i removed my gpu from the 2nd slot and place it in the second one. I mostly dont have normal boots.

Screenshot_7.png

the booting issue seems to be unrelated to the ssd placement

 

The gpu lanes aren't affect the lanes ued by m.2 drives, so one dirve will run at pcie gen 2 speeds form the chipset, and one will run at pcie gen 3 lanes from the cpu. Neither will affect the gpu

 

 

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3 minutes ago, Electronics Wizardy said:

the booting issue seems to be unrelated to the ssd placement

 

The gpu lanes aren't affect the lanes ued by m.2 drives, so one dirve will run at pcie gen 2 speeds form the chipset, and one will run at pcie gen 3 lanes from the cpu. Neither will affect the gpu

 

 

Looks like if both m2's are populated you can't use the two of the three short PCIe slots.

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3 minutes ago, zinet said:

@Kisai so at this point im actually running the gpu with no bandiwidth split on the 2nd slot?

The only way you get 16 lanes is by having it in slot 1.

 

If you plug it into slot 16_2 or 16_3 it will be 8x always.

 

Further to that, if you plug it into 16_3, it will drop it to 4 lanes if the M2_2 is populated.

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1 minute ago, Kisai said:

The only way you get 16 lanes is by having it in slot 1.

 

If you plug it into slot 16_2 or 13_3 it will be 8x always.

Little lost still tbh, If i'd plug my gpu in the first slot. There shouldn't be any issues while occupying 2 nvme slots.

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3 minutes ago, zinet said:

@Kisai so at this point im actually running the gpu with no bandiwidth split on the 2nd slot?

yea the gpu is just running slot,

 

3 minutes ago, Kisai said:

Looks like if both m2's are populated you can't use the two of the three short PCIe slots.

yea, but op doesn't seem to be using the x1s. Using the m.2 won't affect the gpu at all.

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Just now, zinet said:

Little lost still tbh, If i'd plug my gpu in the first slot. There shouldn't be any issues while occupying 2 nvme slots.

it should work fine with the gpu in the top slot. Im guessing there is some other issue with the board.

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Just now, zinet said:

Little lost still tbh, If i'd plug my gpu in the first slot. There shouldn't be any issues while occupying 2 nvme slots.

Correct.

 

Many motherboards don't even electrically connect the last 8 lanes of any 16x lane slot that isn't the first one.

 

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