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Dell T5400 + 9800 GT 1GB and 9800 GT 768mb. Sli? PhysX?

Last response: in Graphics & Displays
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May 9, 2012 12:28:16 AM

I have a Dell Precision T5400, that supports SLI. I also have a PNY 9800GT 1GB Video Card and a XFX 9800GT 768MB Video Card. Should I enable SLI? Or Ive heard something about making an "extra" nvidia video cards a PhysX card? Should I just sell them a buy a fermi card? Currently only the PNY 9800GT 1GB card is installed.
May 9, 2012 1:23:37 AM

Why would a company produce two nearly identical cards? Click the link and compare the two EVGA cards. 01G-P3-1561-KR vs 01G-P3-1561-AR
I dont really see the diff.
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May 9, 2012 1:25:49 AM

Isn't the T5400 a workstation computer? Is there a reason you are changing it into a gaming computer? As far as I'm aware all of the configurations for the T5400 comes with Quadro and FireGL cards. Just make sure you don't need the workstation cards before you take them out.
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May 9, 2012 1:31:36 AM

The T5400 is marketed as a workstation computer yes. However with dual quad-core 3.0 GHZ xeons, SLI support, 32GB ram, 875 watt PS, bios support for RAID0, it smokes as a gamer, so why not? :D 
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May 9, 2012 9:57:03 AM

maboo said:
The T5400 is marketed as a workstation computer yes. However with dual quad-core 3.0 GHZ xeons, SLI support, 32GB ram, 875 watt PS, bios support for RAID0, it smokes as a gamer, so why not? :D 


Heck yeah, decent setup really. I would get a single GTX560, or something better. If your planning on playing BF3, get a 2GB version of 560.
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June 14, 2012 8:20:24 PM

maboo said:
I have a Dell Precision T5400, that supports SLI. I also have a PNY 9800GT 1GB Video Card and a XFX 9800GT 768MB Video Card. Should I enable SLI? Or Ive heard something about making an "extra" nvidia video cards a PhysX card? Should I just sell them a buy a fermi card? Currently only the PNY 9800GT 1GB card is installed.


Hi friend: Did you ever setup the SLI on the T5400 according to wikipedia is the only one of the family that do not need the PCIe riser but I want to be sure because Im planning to get one. Thanks!
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June 21, 2012 12:34:56 AM

Th Dell T5400 does not support SLI... going with ATI Crossfire, which it DOES support.
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a b U Graphics card
June 21, 2012 11:59:39 AM

maboo said:
Th Dell T5400 does not support SLI... going with ATI Crossfire, which it DOES support.



True, It should work with the SLI Mod, It would be kind of interesting to see if it works which I don't see why it wont.

Should work with the newer drivers, but you would have to mess with it http://www.techpowerup.com/forums/showthread.php?t=1530...

I use to use this mod when I SLI'd 9800GT's on a AMD 790FX chipset that only supported crossfire at x16/x16. I indeed enabled SLI at x16/x16 on that board shown here in my screenshot http://i52.tinypic.com/2ed05s9.jpg (I didn't take a screen shot of the main board, but the board was a DFI LanParty DK M2RS 790FX). Don't mind the red circle, I was having chipset heat issues at that time. Not sure it it will work, but won't hurt to give it a try.

http://i55.tinypic.com/6qlffo.jpg
http://i36.tinypic.com/5mz6zl.jpg (before I updated the bios)
http://i49.tinypic.com/dgnm9t.jpg


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June 28, 2012 1:14:11 AM

How was the performance?
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June 28, 2012 1:14:16 AM

Best answer selected by maboo.
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June 28, 2012 2:19:11 PM

maboo said:
How was the performance?


Sorry my internet was out these last few days.

It performed really well, Before in COD4 I was able to get about 100 or so fps at 1440x900 with one 9800gt, when I hooked up the second 9800 My fps went up to a steady 125 and never moved. And In Black Ops my FPS was always above 60. SLI also worked in GTA4 if I forced it, my FPS would nearly double.

So it should work like it would on a normal SLI board, From what I read there is something in the bios of that certain board that tells the OS to disable SLI. So in theory you could run SLI on any board out there as long as it has 2 pci-e lanes. You could run SLI on a board with just pci-e 1x lanes as long as it has 2. But of course the x1 lane would be so slow it would be worthless for a video card.
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June 28, 2012 5:51:35 PM

This topic has been closed by Mousemonkey
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