Unable to install dedicated graphics card in Envy

[MikeHF]

I am trying to run an Nvidia Quadra M4000 which is from like 2014, Nvidea says it need a 300 watt PS. Mine is a 400 watt unit that came with my PC  HP part number L76557-001. The Quadra works in my homebuilt machine which has an 850 watt PS. Max power consumption for the card is 120 watts.  Do I need to find a more efficient card  or is it an issue I need to solve in the bios or is the card whitelisted? Any help would be greatly appreciated!

Reards

Mike

[NonSequitur777]

@MikeHF,

Welcome to our HP community forum!

Yes, a 400-watt power supply should be capable to power your GPU. Perhaps this may come across as a flippant question, but nevertheless, did you check if your power supply's 6+2-pin PCIe power cable is working correctly?  If it doesn't, you could try a dual SATA 15-pin to 6-pin PCIe power adapter cable to power your Quadro M4000.

Kind Regards,

NonSequitur777

[MikeHF]

I forgot to mention that my fans on the video card, CPU and power supply are all working! When I install the card (And it could be any card including a very old Radeon 6670) the machine won't boot up. Is it less of a power issue and more of a BIOS issue? Do I need a bios update? I just disabled Secure boot and that made no difference. I guess I could try a dual sata adaptor but that would mean I would lose the extra hard drive that came with the system. Thank you for the help

[NonSequitur777]

@MikeHF,

Is it a BIOS issue? -Seems unlikely to me.  It almost looks like a power issue to me though: like I said, your 400-watt power supply should be more than capable to power your GPU and have power to spare. From what you shared, I wonder if your power supply has an issue.

Kind Regards,

NonSequitur777