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Tri SLI

You can do that for TRI-SLI GTX580s (without bumping the volts on the GPUs):

http://www.guru3d.com/article/geforce-gtx-580-3-way-sli-review/14

They measured 933W maximum in real gaming. It's consistent with what I measured a while ago:

i7 980X @ 4GHz 1.25V, each GTX580 @ stock, 1920x1200 max settings in each test
bench_en-2.jpg


No idea about TRI-SLI GTX480s, but I bet they'll be pretty similar as TRI-SLI GTX580s in real gaming, if you know NVIDIA's drivers are full of lies in Furmark.

(Edit: found TRI-SLI GTX480s here, that's 1009W maximum: http://www.guru3d.com/article/geforce-gtx-480-3way-sli-review/25)

I think HX1050 will do fine in TRI-SLI GTX480s because it's a PSU built with high quality which also overloads well if needed. However don't expect to overclock your 480s with voltage bump. When I overclocked my TRI-SLI GTX580s at 1.15V each I saw my PSU (AX1200) pulling 1280W from the wall.
 
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I would give it a go for sure, the HX1050 is a good PSU and will have decent protection if they were to sap too much power. I wouldn't overclock the GTX480s though.
 
I know a mate who ran Tri GTX480's and he ended up burning out his mobo. This was with a 1500W PSU. I'm not saying it can't be done but but these cards draw crazy amounts of power so you will need a very good PSU to reliably run them.
 
I know a mate who ran Tri GTX480's and he ended up burning out his mobo. This was with a 1500W PSU. I'm not saying it can't be done but but these cards draw crazy amounts of power so you will need a very good PSU to reliably run them.

HX1050 has decent overcurrent protection so I wouldn't worry about the PSU first. Instead, the 24-pin melting problem is of more concern, if the OP doesn't plug any auxiliary +12V power connectors to the mobo.
 
HX1050 has decent overcurrent protection so I wouldn't worry about the PSU first. Instead, the 24-pin melting problem is of more concern, if the OP doesn't plug any auxiliary +12V power connectors to the mobo.

Agreed. I seem to remember that benchmarkers used to run 2 separate PSU's for TRI SLI.
 
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