Welcome to a Laptop AC Adapter specialist of the Gateway Ac Adapter
Really hoping somone may have done an upgrade to their FX 540S to help me out on this, or someone who can tell me exactly where to connect the additional power source to on the computer side..
Doing a graphics card upgrade for my Gateway FX 540S, from the existing Nvidia GeForce 8600 GS to a GTX 660. I cannot figure out where to get the additional power source on the computer side to go to the 6 pin card port. Done a lot of research without any results. There are some vacant connectors in the case, couple of vacant six pins on one end, and a vacant plugin connector near the card.
I also found some info that said you can't change the existing card out on this Gateway model with battery like eMachines D520 AC adapter, eMachines E528 AC adapter, eMachines G520 AC adapter, Gateway LT1005 AC adapter, Gateway 0220A1990 AC adapter, Gateway ADP-50GB AC adapter, Gateway PA-1650-01 AC adapter, Gateway 0220A1890 AC adapter, Gateway SA70-3105 T4010 AC adapter, Gateway ADP-60DH AC adapter, Gateway Solo 9100 AC adapter, Gateway S7200 AC adapter. Nvidia support said it will work, I just don't know where to connect the additional PS connectors. Thought this upgrade was a slam dunk, just don't want to connect it up wrong and fry something.
Thank you for your time on this! The PSU for this Gateway FX 540S is a 700w. I only play Wow, so probably not going to ramp the GTX 660 to its max...stats...149w normal use... 292w max on high end game. I did a calc on Newegg's Power Supply calculator for my existing setup and it is using 378w. So, looks like there is plenty of room for the new card.
I have a link to some photos I took, pictures I always feel are the best to describe the situation. The molex connector does come from the PSU and only has a small fan to the motherboard tapped to it. I tested the Molex connector with a voltmeter... the yellow wire is 12v and the red wire is 5v. The male 3 wire Molex to 6 pin adapter I got with the new card has 3 wires, yellow, black, brown, which would connect yellow to yellow on the computer female Molex. (There is not a pin on the Molex adapter to correspond to the 5v red wire on the computer Molex connector.)
The two vacant 6 pin connectors P20 & P25 have 3 blue (not a true blue) on top and 3 black on the bottom and come directly out of the PSU with nothing attached. I tested the voltage for both, all 3 blue wires on each 6 pin have 12.2v per wire.