How to verify if all components support PCIe 4.0 or 3.0?

F5F Stay Refreshed Hardware Desktop How to verify if all components support PCIe 4.0 or 3.0?

How to verify if all components support PCIe 4.0 or 3.0?

How to verify if all components support PCIe 4.0 or 3.0?

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Dadertrix
Junior Member

40

08-10-2019, 10:05 PM

#11

The graphics card is operating in PCIE 1.1 x8 mode, likely due to power conservation. Pressing "?" beside the Bus interface text box initiates a render test, which should update the bus interface to PCIE 4.0 x16.

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Dadertrix

08-10-2019, 10:05 PM #11

The graphics card is operating in PCIE 1.1 x8 mode, likely due to power conservation. Pressing "?" beside the Bus interface text box initiates a render test, which should update the bus interface to PCIE 4.0 x16.

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NerdyOwls13
Member

59

08-11-2019, 03:00 AM

#12

Sure, I check whether the PCIE version increases during the test window.
It seems likely it operates at reduced bandwidth when the system is in desktop idle mode.

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NerdyOwls13

08-11-2019, 03:00 AM #12

Sure, I check whether the PCIE version increases during the test window.
It seems likely it operates at reduced bandwidth when the system is in desktop idle mode.

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squirreler1023
Junior Member

23

08-11-2019, 03:24 AM

#13

It seems your system is configured for PCIe 5.0 NVMe, which reduces the available lanes to your GPU. Even though it runs on PCIe 4.0, only half of the lanes are being used. If you can switch the NVMe slot to PCIe 4.0 mode, that should resolve the issue. Intel models with PCIe 5.0 support for NVMe draw from CPU lanes, which is a design choice but something motherboard manufacturers need to accommodate.

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squirreler1023

08-11-2019, 03:24 AM #13

It seems your system is configured for PCIe 5.0 NVMe, which reduces the available lanes to your GPU. Even though it runs on PCIe 4.0, only half of the lanes are being used. If you can switch the NVMe slot to PCIe 4.0 mode, that should resolve the issue. Intel models with PCIe 5.0 support for NVMe draw from CPU lanes, which is a design choice but something motherboard manufacturers need to accommodate.

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KingdomClasher
Member

216

08-11-2019, 02:05 PM

#14

Is there a suggested utility similar to cpu-z but for storage devices, such as an nvme-z?
Or can you tell me how to configure my nvme to operate exclusively on pcie 4.0?

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KingdomClasher

08-11-2019, 02:05 PM #14

Is there a suggested utility similar to cpu-z but for storage devices, such as an nvme-z?
Or can you tell me how to configure my nvme to operate exclusively on pcie 4.0?

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xNO1BETTERx
Junior Member

9

08-11-2019, 02:32 PM

#15

According to the manual, previous information about SSD checking has been referenced: https://forums.

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xNO1BETTERx

08-11-2019, 02:32 PM #15

According to the manual, previous information about SSD checking has been referenced: https://forums.

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Dingdongyou
Member

220

08-11-2019, 11:02 PM

#16

I noticed
my graphics card went to say
PCIe x16 4.0 @ x8 4.0
in gpu-z when I did the render test
Perhaps that's acceptable for a graphics card?
I'm not sure if it would even make use of higher bandwidth.
But maybe it's best to keep everything in PCIe 4.0 at the highest level if possible
So I will check setting the NVMe to 4.0 in the BIOS

D

Dingdongyou

08-11-2019, 11:02 PM #16

I noticed
my graphics card went to say
PCIe x16 4.0 @ x8 4.0
in gpu-z when I did the render test
Perhaps that's acceptable for a graphics card?
I'm not sure if it would even make use of higher bandwidth.
But maybe it's best to keep everything in PCIe 4.0 at the highest level if possible
So I will check setting the NVMe to 4.0 in the BIOS

U

UncleGBW
Junior Member

41

08-12-2019, 09:44 AM

#17

Forcing the slot to x16 and moving the SSD to the chipset wouldn't affect anything unless you're using a PCIe 5.0 SSD.

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UncleGBW

08-12-2019, 09:44 AM #17

Forcing the slot to x16 and moving the SSD to the chipset wouldn't affect anything unless you're using a PCIe 5.0 SSD.

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SuperCaleb07
Junior Member

26

08-12-2019, 02:08 PM

#18

Move the drive from the CPU's M.2 port to the chipset's M.2 port manually, not by adjusting BIOS settings.

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SuperCaleb07

08-12-2019, 02:08 PM #18

Move the drive from the CPU's M.2 port to the chipset's M.2 port manually, not by adjusting BIOS settings.

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jfasgrym
Member

56

08-20-2019, 06:12 AM

#19

Hm ok that's something I really want to avoid
😉
I read that "PCIe 4.0 x8 is close to equivalent bandwidth to PCIe 3.0 x16"
So that would be fine for me.. 2-3-4 fps doesn't matter much

J

jfasgrym

08-20-2019, 06:12 AM #19

Hm ok that's something I really want to avoid
😉
I read that "PCIe 4.0 x8 is close to equivalent bandwidth to PCIe 3.0 x16"
So that would be fine for me.. 2-3-4 fps doesn't matter much

V

VeraquinGaming
Member

209

08-22-2019, 04:50 AM

#20

Unless Asus is misrepresenting the details on the specifications page and in their manual, this might be inaccurate.

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VeraquinGaming

08-22-2019, 04:50 AM #20

Unless Asus is misrepresenting the details on the specifications page and in their manual, this might be inaccurate.

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