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Dell T7400 PCI-E

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  • Power Supplies
  • Dell
  • PCI Express
  • Components
  • Product
Last response: in Components
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August 10, 2011 7:20:26 PM

I searched the forum, and didn't see anything specifically relating to the situation, but I may have missed something. So I appologize if this has been posted before.

I have a Dell Precision T7400 that I got a Gigabyte GTX 570 SOC edition for. The card has a 6 pin and an 8 pin power adapter, but the PSU only has 6 pin adapters. I have a 2x 4pin molex to 8pin adapter, but the T7400 only has one molex. Should I get a 2x 6pin to 8pin adapter for it?

More about : dell t7400 pci

a b ) Power supply
August 10, 2011 9:47:11 PM

It highly likely that the dell supplied PSU has enough capacity to run the card anyways; so you'll need to change it out. ( Is it even a 300w PSU?)

Gigabyte recommends a 650W Power Supply. Here is a list of corsairs on Newegg.
http://www.newegg.com/Product/ProductList.aspx?Submit=E...
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August 10, 2011 10:11:05 PM

popatim said:
It highly likely that the dell supplied PSU has enough capacity to run the card anyways; so you'll need to change it out. ( Is it even a 300w PSU?)

Gigabyte recommends a 650W Power Supply. Here is a list of corsairs on Newegg.
http://www.newegg.com/Product/ProductList.aspx?Submit=E...


The psu is a 1000w and can't be replaced with a non Dell iirc.
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November 8, 2011 5:25:34 PM

cmgunn said:
I have a Dell Precision T7400 that I got a Gigabyte GTX 570 SOC edition for. The card has a 6 pin and an 8 pin power adapter, but the PSU only has 6 pin adapters. I have a 2x 4pin molex to 8pin adapter, but the T7400 only has one molex. Should I get a 2x 6pin to 8pin adapter for it?

Hi there,

I'm in the same situation, wanting to run GFX295 with a 6-pin and an 8-pin PCIe power connector on my Dell T7400. The power supply is 1000W with 5 x 12V rails @ 18A each so it should be enough to power 2 of these. I'm just very puzzled by the connectors Dell provides. Mine has a 8-pin P19 which according to the manual and the coloring isn't wired with the needed 3x12V on pins 1-3. It also has a 10-pin(!) P24 which seems to have 3 x 12V on pins 1-3 and compatible keying but is too short to reach any graphics card!!!

How did you (or anyone else) solve this? Thanks.
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December 7, 2011 2:22:50 PM

I just found a wonderful tutorial that has shown me how to rewire my Dell PSU using 2 staples: http://www.overclock.net/t/1006680/how-to-remove-the-pi...

This saved me having to buy a toolkit for this such as: http://www.sunbeamtech.com/PRODUCTS/PSU%20MODDING%20TOO...

Make sure you disconnect AND discharge your PSU before attempting any such mod!!!

Here's a link to a well-informed discussion about the wiring of 6-pin and 8-pin PCIe connectors with a link to pin diagrams: http://www.tomshardware.co.uk/forum/274631-10-power-spe...
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