Power out for video card

[jag5c0f]

Hi,

I'm looking to upgrade my video card that has 8 pin connector, it will be used in pcie 3x16 slot. There three cables that are 6 pin connector. How can I use the Z840 power connector to power the video card.

GeForce GTX 1660 Super Graphics Card, 6GB GDDR6 Gaming PC GPU 192bit Video Card PCIe 3.0 x16 DP HDMI DVI Display 1660S Game Card

[NonSequitur777]

@jag5c0f,

Welcome to our HP community forum!

The same way I used to power an RTX 3080 through my HP Z440 Workstation's 700-watt power supply: by using 6-pin PCIe to 8-pin PCIe power adapter cables as you can read in this thread: Solved: Re: Upgrading an HP Z440 Workstation - Page 3 - HP Support Community - 9015888:

You can do this because your HP Z840 PSU's 6-pin PCIe power cables can provide up to 216-watt (12V x 18A) of power each.

Hope this was helpful.

Kind Regards,

NonSequitur777

[jag5c0f · Accepted solution]

I would like to express thanks to NonSequitur777  for his reply to me about the 6-pin PCIe to 8-pin PCIe power adapter cables. Also let me know about the power output on my Z840.

Jag5cof .

[jag5c0f]

Should I be purchasing

• 6 Pin to Dual PCIe 8 Pin (6+2) Graphics Card PCI Express Power Adapter GPU VGA Y-Splitter Extension ...

[NonSequitur777]

@jag5c0f,

You're welcome, glad I could assist you.

No, the adapter cables you need look like these (or the ones I referenced in my previous post + eBay link):

Link: Amazon.com: Cable Matters 2-Pack 6 Pin to 8 Pin PCIe Adapter Power Cable - 4 Inches : Electronics.

Here is a relevant customer review regarding this product:

Kind Regards,

NonSequitur777