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- 27 Aug 2007
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I have the aforementioned PSU and 3x Nvidia GTX 280 GPU’s.
It clearly says in the manual on page 3 “Toughpower 1200W support up to three high-end graphic card”.
It also says in the manual on page 16 “Please be noticed that when trying to connect more than one connector to a graphic card, it is strongly recommended to choose the connectors from exactly the same +12V rail.”
HOWEVER, there are only 2x 6 pin and 1x 8 pin connectors on the 12V3 rail, and only 1x 6 pin and 2x 8 pin connectors on the 12V4 rail. Therefore, it is only possible to fit 1x GPU to each rail as instructed in the manual.
I would therefore have to connect the third GPU by connecting the 6 pin PCI-E cable to the 12V3 rail, and the 8 pin PCI-E cable to the 12V4 rail.
A single GTX 280 draws 292W and 2x cards in SLI draw 508W for example. Each rail is rated @ 600W/36A.
Will I safely be able to connect the third card as described above and will I have any problems?
It clearly says in the manual on page 3 “Toughpower 1200W support up to three high-end graphic card”.
It also says in the manual on page 16 “Please be noticed that when trying to connect more than one connector to a graphic card, it is strongly recommended to choose the connectors from exactly the same +12V rail.”
HOWEVER, there are only 2x 6 pin and 1x 8 pin connectors on the 12V3 rail, and only 1x 6 pin and 2x 8 pin connectors on the 12V4 rail. Therefore, it is only possible to fit 1x GPU to each rail as instructed in the manual.
I would therefore have to connect the third GPU by connecting the 6 pin PCI-E cable to the 12V3 rail, and the 8 pin PCI-E cable to the 12V4 rail.
A single GTX 280 draws 292W and 2x cards in SLI draw 508W for example. Each rail is rated @ 600W/36A.
Will I safely be able to connect the third card as described above and will I have any problems?
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