RTX5060 multi card install

[warpXspeed]

Greetings ;

I have a HP Z840 that has 3x RTX3060 nvidia gpus working for AI, I am looking to update to 3x RTX5060 16gb,  I can get 1 RTX5060 working no issues stuff card in and it works, but if I try to add a second card the system hangs on the HP boot logo, any idea's?

[NonSequitur777]

@warpXspeed,

Welcome to our HP Community forum!

Since one RTX 5060 works but adding a second causes the Z840 to freeze at the HP logo, the issue is most likely a firmware/PCIe resource allocation rather than bad hardware. Update the Z840 BIOS if you haven't already, disable Legacy/CSM boot, enable pure UEFI and Above 4G Decoding, and manually force PCIe Gen3 if possible. Also install Nvidia's RTX 5060 firmware update, because Nvidia has acknowledged boot/black-screen initialization issues with 5060-series cards on some systems.

Bottom line: a Z840 can run RTX 50-series GPUs (like this user shows), but it is known that older HP workstation firmware can be rather picky with the latest generation multi-GPU Blackwell configurations, especially with multiple units.  Reality is that setting up multiple RTX 50xx cards may be a bridge too far for your PC.

Kind Regards,

NonSequitur777

[warpXspeed]

gone from bad to worse, made an adjustment to bios and rebooted, now no video, no boot,  (system bios m60 v02.61)  have tried all the clear cmos, removed cards, drives, etc. using boot recovery flash on bios but will not flash,