HP Elite 600 G9 TWR PCI slot

[marekpio]

Hello

new HP Elite 600 G9 TWR series computer with new PCI Gen4,

is it possible to change the transfer of the PCI slopt to work as PCI Gen3?

The computer does not recognize PCI cards that work in Gen3 slots, the system does not see the card at all

The card works fine on the previous generation computer that had PCI Gen3

I note that the service manual says about changing the transfer, but the BIOS does not have such a function

[BeemerBiker]

What card are you having problem with.

You have 3 gen3 slots and one gen4.  The gen 4 is slot #24 in picture

Some UEFI bios it is possible to set the gen to "default" ,"gen1", etc

look under advanced.

The latest bios is 2.03.01 dated May, 2022

https://support.hp.com/us-en/drivers/selfservice/hp-elite-tower-600-g9-desktop-pc/2100963609

windows 10 and 21h1

Possible an adapter might not function in a gen4 slot even if the slot is backwards compatible.

In addition some boards may work in one slot and not in another due to resource allociation.

Are all 4 PCIe slots filled?

[marekpio]

in BIOS you cannot change Gen 1 etc, the slots are not populated

[BeemerBiker]

Looks like that feature is limited to desktop workstations

If in bios it would be  in advanced -> chipset or options

What card(s) is the problem?

If you have an incompatible graphics card it could go in slot #22

or even in any of the x1 slots as long as the back of the socket was open

[marekpio]

the card is Delock DS-30225. the card works in the G6 generation or G8

[BeemerBiker]

You may have a conflict with existing USBC

I tried two high speed USB3+C multilane cards in an Area51 that already had USBC and neither of them worked.

They worked fine on workstations that had no USB3

The symptom I had was the board was recognized but always had an error icon

I suggest you add a powered USBC port expansion on the existing USBC on your front port

[marekpio]

the card is not recognized at all, when I put it in it cannot be seen