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Back to 780TI's.

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  • Graphics
Last response: in Graphics & Displays
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September 10, 2014 12:28:31 AM

So, something came up. A friend offered to buy my 290x's both for $1,100, which is damned nice and he said he'd rather buy them from a friend, knowing they work, plus getting them on the spot than deal with a retailer, plus he's not overpaying a lot. So, I also have a chance to finance 780TI's. Now I know, I know, the 980's drop soon, but from what I've heard the performance is gonna be slightly below/above the 780TI or exactly the same, the only upside is the vRAM (I think) and the lower wattage draw.

Anyway, to the question, I've never done a direct video card swap before. I have ATI drivers installed and an AMD setup. So, if I put in the 780TI's, what all am I gonna need to do? My guess is just install the drivers, uninstall the AMD ones and be set, but as I said, never done a hot swap like this before so I just wanted some insight. This isn't a massive upgrade, no. But I'm basically spending $200 for these TI's, and it's on a finance which I can pay off in two months. Long story short, probably gonna do it. How much power do two 780TI's draw? I had two of them before but I never checked. Rough estimates online say 500W, but I trust people looking at their own system rather than links, seeing as how I never though to check it on my old system. Plus, these are PNY 780TI enthusiast editions with a dual fan aftermarket cooler, so overclocking will be easier and my system won't have one card out of the two (my ref 290x) acting like a volcanic hurricane inside my computer.

Thanks in advance. I'd wait for the 980's but I see no real benefit (to me, anyway) seeing as how the performance is rumored to be on 780TI level anyway. I could care about the power draw seeing as how the R9 290X's draw more than they should anyway.

More about : back 780ti

September 10, 2014 12:37:09 AM

http://www.realhardtechx.com/index_archivos/Page362.htm
One 780Ti 620, sli is 950W recommended. 500W? Where are you getting your info? Just because it works doesn't mean it's ok. Be more careful now. What psu are you running?

I'd uninstall the amd drivers. Download the nvidia driver and install when prompted once you boot up with the new 780Tis.
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September 10, 2014 12:37:37 AM

i did the same swap. it is very simple.

-plug in ONE card.
-boot into the OS,
-remove AMD drivers completely, do a driver sweeper scan
-reboot
-install newest nvidia drivers, do a "clean install". it's a check box option in the nvidia install wizard
-reboot
-plug in second card
-enable SLI in the nvidia drivers
-p4wn n00bs in your game of choice.

500 watts is what the graphic cards ALONE will consume. the rest of the system will take another 100-150 watts. so figure you'll need a good quality 850 watt PSU, or a not so good quality 1000 watt PSU.
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September 10, 2014 12:39:29 AM

Most GPUs are relatively plug and play for basic functionality, but I will echo jnewegger23 and suggest uninstalling Catalyst and the AMD drivers completely before switching out.
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September 10, 2014 11:33:38 AM

I have a 875watt 80+ Silver PSU. Multi-rail. It's ran two GTX 780TI's before, it'll do it again.
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September 10, 2014 11:38:25 AM

Etorpine said:
I have a 875watt 80+ Silver PSU. Multi-rail. It's ran two GTX 780TI's before, it'll do it again.


yep, exactly as i said, a well made 850 watt PSU or poorly made made 1000 watt PSU will do. a silver rated PSU is definitely well made. people out here recommend the stupidest set ups. i've seen a bunch of people on here with motherboard and GPU "expert" badges telling this one clueless kid to go get a $135, 650 watt PSU for single GTX 760. and he would have done it too if I would not have chimed in.
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September 10, 2014 2:10:12 PM

I have an Alienware Aurora R4. I bought it on a finance plan because I could not afford to piece together a setup, so I took the loss and overpaid. I will say the case is BEAUTIFUL and I like the ALX benefits like the cooling vents, tool-free entry, tool-free HDD removal, inside case lighting even when unplugged and t he ability to customize the LED's. I love the case, and the hardware (Other than the motherboard, it's not bad but it's not amazing, it's just plain old good.) is outstanding. The first time I got two GTX 780's. I had to wait a longggg time so they upgraded my RAM from 8GB to 16GB and upgraded the 780's to 780TI's (all they had in stock, ironic right?). It ran amazing. Low and behold, my secondary 780TI shot up to like 160C out of the blue and it got SO hot that it burned the PCI slot in the mobo and caused minor damage to the casing of the primary 780TI. I had to send it back and a replacement would've took over a month to get to me so I upgraded from a quad core to a six core and took the loss on a 290X which I paired in Crossfire because I bought a new one for $400, got a good deal, I had an 1250W OCZ but it was causing problems with my case so I'm selling it and going back to the 875W (it ran two 780TI's before with ZERO problems, so it should again, the new processor only draws 15W more average). I'm selling my 290X's to a buddy and I got a cheap finance deal on two 780TI's for $30 a month, which I'm going to pay off almost immediately with my money from the PSU and 290x's and use the leftover to buy some games. Basically I'm getting a free upgrade (downgrade on the PSU but it won't hurt me) and a little pocket change for nothing.

And according to SEVERAL sources a 750W PSU is recommended for the SLI, even on Titans.. I don't know why you seem to think it's gonna take right under 1000 Watts to support two cards that don't draw a lot of power. Unless you use AMD FX powerhog processors.
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