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HP Recommended
HP Z4 G4
Microsoft Windows 10 (64-bit)

Hi,

I'm attempting to upgrade from an AMD FirePro 3100 to a GTX 1660TI.  The GTX requires additional power, 8 pin Molex, and it appears that I have 2 6+2 connectors routed to the front panel area but are not connected to anything.

6+2 here means a single 6 pin connector where 2 wires are coming out of two of the pins into a 2 pin connector.  The first cable connectors are labeled G1(6pin) & G1-1(2pin).  The second cable connectors are labeled G2(6pin) & G2-1(2pin). Can I use one of them (g1/g1-1) to in effect create the 8 pin I need to power the GTX card?

 

Thanks

 

 

2 REPLIES 2
HP Recommended

Yes.

HP Recommended

It is a little more nuanced than that.  If you are seeing that then you have one of the 6 + 2 setups.  There are 4 listed power supplies for the Z4 G4.  Note that the 18A current limit for virtually all modern HP workstations per 6-pin PCIe supplemental power cable is much higher than the ATX standard (which is 75W each).  18 x 12 = what the HP ones can provide.  Thus a high quality 6-to-8 pin adapter can be used with confidence as long as you know what you're doing in terms of total load.  Here's from the quickspecs:

 

Z4 G4 4 different power supplies.jpg

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