Originally Posted by OddGusta
I have a TR2 600W (P/N TR-600) and I want to get a third monitor. This means SLI'ing my GTX 460. My TR2 only has a 6 pin PCIe and a 6+2 pin. The 460 takes 2 6 pin. Do I need something like the ZT 750W http://www.newegg.com/Product/Product.aspx?Item=N82E16817341052
? I've heard that the TR-600P is probably OK, but I dont know about mine. Link to Micro Center page for my PSU: http://www.microcenter.com/product/365238/TR2_Series_600_Watt_ATX_Power_Supply
And of course it was $65 when I got it.
I have a 2 year warranty (still OK), does anyone know if this covers me not being happy with it? There is a CHANCE that something is wrong with it. When I use it in the right orientation (fan down), it makes a rattling sound. My PC sometimes randomly shuts down, but that could just be Win 8. I'm not sure if either of those are enough to get the refund, but who knows?
You don't get a refund you. They repair or replace it with the same or similar model. Unless you are talking about an optional in store extended coverage plan. In that case they usually just give you what you spend on the PSU as a gift card. Usually with those extended plans you don't really need to prove the device is defective. They just take your word for it and give you the credit.
I don't know all of the specifics of your system but just throwing in some random parts with those 2 cards the PSU calculator from extreme says that following
System Type: 1 physical CPU
Motherboard: Regular - Desktop
CPU Socket: Socket AM3
CPU: AMD Phenom II X4 965 3400 MHz Deneb
CPU Utilization (TDP): 95% TDP
RAM: 2 Sticks DDR3 SDRAM
Video Card 1: NVIDIA GeForce GTX 460 1GB
Video Card 2: NVIDIA GeForce GTX 460 1GB
ATTENTION: FOR PERSONAL, NON-COMMERCIAL USE ONLY
IDE HDD 7200 rpm: 2 HDDs
DVD-RW/DVD+RW Drive: 1 Drive
Regular: 4 Fans 120mm;
Keyboard and mouse: Yes
System Load: 90 %
Capacitor Aging (+ W %): 20 %
Minimum PSU Wattage: 575 Watts
Recommended Wattage: 625 Watts
So you could buy 2 PCIe plugs and the pins that go in them and you can re-wire your unused molex power cables into PCIe plugs. If you do that I would put 1 original plug on each card and 1 of the ghetto plugs on each card.
But in all honesty you are better off selling the 460 and buying a new card that uses less power but has the performance of 2 460s.
You should be able to break even on the cost. A AMD HD 7850 is substantially faster than a GTX 460. It uses less power than a single GTX 460. Used 460s go for $40-70 on eBay and used 7850s go for around $160 used on ebay. You can get them new for about the same price though and they may even come with a game coupon code not sure though.
I don't think it is worth buying a new PSU or modifying the one you have. Also dual cards don't always scale well. There are games that they will get minimal gains and some games where they will get no gains.