gpu fan on but not working/showing up in bios | Linus Tech Tips | Page 1

runic jay Aug 2, 2025, 9:12 PM

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i have a gtx 970 plugged into a brand new prim b650m-a ax ii mini atx i tried a friends 1080 in all pci ports to no avail is there soemthing i have to change in the bios or is the motherboard broken. i have tried most of the basics

opal fossil Aug 2, 2025, 9:21 PM

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Can you be any clearer? I am not sure what the problem is.

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Is it the GPU is not working at all?

runic jay Aug 2, 2025, 9:24 PM

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The fan is on, but its not reading anywhere

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not showing up on windows or cpu bios

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and theres no gpu bios

opal fossil Aug 3, 2025, 1:22 AM

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Do you have an igpu on the cpu to test?

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And are the PCIe power connectors plugged in to the gpu you’re using?

runic jay Aug 3, 2025, 2:18 AM

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I am using integrated graphics now, the gpu is plugged in and the fan is spinning if that helps

ionic lotus Aug 3, 2025, 4:07 PM

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Does it show up in device manager

runic jay Aug 3, 2025, 10:44 PM

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No

runic jay Aug 7, 2025, 6:11 PM

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Still wondering about this

ionic lotus Aug 7, 2025, 6:19 PM

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Both the 970 and 1080 did not show up?

runic jay Aug 9, 2025, 4:39 PM

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Yea

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I think it’s motherboard

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1080 worked on a friends pc

ionic lotus Aug 9, 2025, 5:11 PM

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You could try a cpu reseat

runic jay Aug 9, 2025, 7:56 PM

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How would do that?

ionic lotus Aug 9, 2025, 8:06 PM

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take off the cooler, remove the cpu, put the cpu back, put thermal paste on, and put the cooler back on

runic jay Aug 9, 2025, 8:07 PM

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no software just hardware?

ionic lotus Aug 9, 2025, 8:08 PM

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yes

runic jay Aug 9, 2025, 8:08 PM

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ok thanks

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ill try later this week

ionic lotus Aug 9, 2025, 8:09 PM

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an improperly seated cpu can cause flaky ram, missing ram, flaky pcie, missing pcie (causing gpu to not show up), and other stuff like that

opal fossil Aug 9, 2025, 10:22 PM

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It sounds like a fkd PCIe port tbh and needs a new mobo.

#gpu fan on but not working/showing up in bios