top PCIE running x8

Alan J T

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The motherboard (AMD B450 chipset) is PCI-E Gen3.
Your graphics card is PCI-E Gen4.
x8 Gen4 = x16 Gen3
Yes but they should have been gettin Gen 3.0x16 not Gen 3.0x8 hence the problem.
 

RemusM

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Yes but they should have been gettin Gen 3.0x16 not Gen 3.0x8 hence the problem.
I'm not sure if his readings are accurate.
In any case, the PCIe 3.0 x8 bandwidth is more than enough for a 6700 XT
 
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it's that the mobo isn't running at it's correct speeds plus you might want to triple check the pictures i posted it even says X8 3.0
 

darkhawk

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Or try changing the PCIe generation to Gen 3 instead of leaving it on auto. That might help the situation a little bit. Maybe?
 

Alan J T

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i tried that it stayed at X8. i hae a b550 coming tomorrow will see how it's on there or knowing my luck that won't boot lol
SHould boot out of the box with your set up no need for Bios update for your CPU to work on the board.
 

RemusM

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i tried to switch the bios settings to 8X8 and was going to reset it to check if it "magically works" but it set itself to 2.1.1
It's not 2.1.1 (something like that does not exist anyway).
If you pay attention to the posted screenshot you will see that is PCIe x16 4.0 running at x2 because there is no load.
That 1.1 at the end is the version, which is obviously a wrong reading.
The first thing I would do is to reseat the CPU (and to check for bent pins).
The second one would be to try with another (model of) graphics card.
The 3rd one would be another motherboard.
;)
 

Alan J T

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It's not 2.1.1 (something like that does not exist anyway).
If you pay attention to the posted screenshot you will see that is PCIe x16 4.0 running at x2 because there is no load.
That 1.1 at the end is the version, which is obviously a wrong reading.
Do not agree with that and may just add confusion for the user
PCIE can do some funny things with power saving enable is one of the reason I customise my Power profiles
1642244869757.png


Mie shows this with load or no load due to Power and BIOS setting
1642246715477.png
 
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darkhawk

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I mean, I worry very little about what it says.....It's very obvious as soon as you start up a game whether you're getting the performance you should or not. And in reality, that's what matters, not what some random program reports.
 

RemusM

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Do not agree with that and may just add confusion for the user
PCIE can do some funny things with power saving enable is one of the reason I customise my Power profiles
Power saving is about the number of PCIe lanes in use.
Not about the PCIe version (which must be always the same)!
That's a GPUZ bug (like many others ...).
The bottom line: I don't see any real problem with his system (like @darkhawk just pointed out).
 
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It's not 2.1.1 (something like that does not exist anyway).
If you pay attention to the posted screenshot you will see that is PCIe x16 4.0 running at x2 because there is no load.
That 1.1 at the end is the version, which is obviously a wrong reading.
The first thing I would do is to reseat the CPU (and to check for bent pins).
The second one would be to try with another (model of) graphics card.
The 3rd one would be another motherboard.
;)

reset. done before you even saw the thread ;)
no bent pins.
the PCIe x16 4.0 running at x2 runs at X8 even AT LOAD but seems this is a B450 it shouldn't run at PCIE 4.0 so you're missing read the it yourself ;)
i was running a 5600xt (X8)on here but sold that because why not in todays market ;)
bought a new motherboard, won't install it until sunday.

power saving is off in windows power plan ;)
 
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Power saving is about the number of PCIe lanes in use.
Not about the PCIe version (which must be always the same)!
That's a GPUZ bug (like many others ...).
The bottom line: I don't see any real problem with his system (like @darkhawk just pointed out).

it's the X8 instead of 16X and could we figure out why. it went to x2 1.1 because i set the bios to 8X8.
 
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I mean, I worry very little about what it says.....It's very obvious as soon as you start up a game whether you're getting the performance you should or not. And in reality, that's what matters, not what some random program reports.

was wondering why it's X8 instead of X16. the GPU runs great. figured the 3600 would bottleneck the 6700xt but runs just about perfectly on 1080P.
 

Alan J T

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reset. done before you even saw the thread ;)
no bent pins.
the PCIe x16 4.0 running at x2 runs at X8 even AT LOAD but seems this is a B450 it shouldn't run at PCIE 4.0 so you're missing read the it yourself ;)
i was running a 5600xt (X8)on here but sold that because why not in todays market ;)
I pretty sure that is a PCIE4.0 x 16 GPU
 

RemusM

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the PCIe x16 4.0 running at x2 runs at X8 even AT LOAD but seems this is a B450 it shouldn't run at PCIE 4.0 so you're missing read the it yourself ;)
That's what I told you in my first posted message.
Again:
The motherboard (AMD B450 chipset) is PCI-E Gen3.
Your graphics card is PCI-E Gen4.
x8 Gen4 = x16 Gen3

So at full load you get PCIe x8 4.0
Clear enough now?
 
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That's what I told you in my first posted message.
Again:
The motherboard (AMD B450 chipset) is PCI-E Gen3.
Your graphics card is PCI-E Gen4.
x8 Gen4 = x16 Gen3

So at full load you get PCIe x8 4.0
Clear enough now?

how can something run X8 4.0 when the mobo specifications are 3.0
 
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Your CPU is PCIe 4.0
The first PCIe slot is connected directly to the CPU.
That's why.
THE b450 is gen 3 only.
Graphics
Interface
1 x PCI-E 3.0 x16 slot + 1 x PCI-E 2.0 x16 slot
Supports 2-way CrossFire

my original question was any idea why it's running at 8X instead of 16X.
 
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