DELL STOCK PSU QUESTION PLEASE HELP

[Fearless247]

Hello, I recently bought a Dell R5400 Workstation that I'm trying to turn into a powerful all around PC with workstation capabilities as well as gaming. I has a NON upgradable 750 Watt PSU with 62.4 Amps on the single 12 Volt rail with just two 6 pin pcie connectors . My problem is I was going to use a R9 270 GPU which has one 6 pin power connector, however I found a EVGA GTX 770 still in box for $20 less. I want to use the 770 but it requires an 8 pin and 6 pin so could I use a connector like THIS ONE? Would that safely power the 770? Could I overclock? Thanks   

[LienusLateTips]

Won't power. 2x 6 pin + PCIE slot = 225W. TDP of 770 is 230W and most GPUs usually more than it's TDP.

[Zando_]

4 minutes ago, Fearless247 said:

Hello, I recently bought a Dell R5400 Workstation that I'm trying to turn into a powerful all around PC with workstation capabilities as well as gaming. I has a NON upgradable 750 Watt PSU with 62.4 Amps on the single 12 Volt rail with just two 6 pin pcie connectors . My problem is I was going to use a R9 270 GPU which has one 6 pin power connector, however I found a EVGA GTX 770 still in box for $20 less. I want to use the 770 but it requires an 8 pin and 6 pin so could I use a connector like THIS ONE? Would that safely power the 770? Could I overclock? Thanks   

Cards with a 6 and 8 pin often include a 6-to-8 pin adapter. MY 980 Ti I got from Craigslist did. Just check with the seller and see if it includes one. And yeah, that adapter should work.

[LienusLateTips]

Just now, Zando Bob said:

Cards with a 6 and 8 pin often include a 6-to-8 pin adapter. MY 980 Ti I got from Craigslist did. Just check with the seller and see if it includes one. And yeah, that adapter should work.

The only problem is:

6 pin can power 75W. 75 x 2 = 150.

PCIE slot can power 75W.

150 + 75 = 225W.

TDP of 770 is 230W. GPUs usually use more than TDP.

[Jurrunio]

That adapter might overload your 6pin cable. Try find a "2 molex to 1 6pin" and a"2 6pin to 1 8pin" adapters.

[Fearless247]

My Dell Has No Molex Connectors. The only free connectors it has at all are 2 6 pin pcie cables

[quan289]

The GTX 770 has a power draw of under 200wDC during typical loads, where it can over 200wDC in synthetic application such as Furmark / Kombuster or an heavy overclock..

Here's a review of the MSI GTX 770 TwinFrozr that isolated the DC power draw at the card using a $1500+ piece of equipment: https://www.techpowerup.com/reviews/MSI/GTX_770_TF_Gaming/24.html

 

That adapter should work. The 6 pin connector is capable of outputting more than specified 75w, in which the difference between it and the 8 pin connector is the two extra ground wire

[Fearless247]

So It will work but no go on a OC? That's fine as I don't usually anyway.