Upgrading a Precision t7400 GPU

Hello

Please find the below link 

http://www.dell.com/us/dfb/p/precision-t7400/pd

select tech spec which will provide you with compatible GPU's. 

Hope this helps.

Regards

Power supply wont support 970,980,980ti

And it has no UEFI bios.

There is a Drop in EVGA Geforce 960 That works fine in T3400,5400,7400

EVGA 02G-P4-2966-KR  GTX 960 2GB 128-Bit GDDR5 SuperSC ACX 2.0+ Video Card

http://www.newegg.com/Product/Product.aspx?Item=N82E16814487091

Hello,

I also have an old T7400 workstation and want to upgrade the GPU.

I am curious if it is possible to resolve the power supply issue because I think the card i want to use (AMD r9 290/390) does't require uefi.

I also wanted to ask you which PCIE version is supported(I found two different supported versions on intel.com 1.1 and 2.0), and whether a x16 is available (x16 is required by the graphic card).

Thank you for any answers and have a nice day

Sources:

dual bios support :

http://www.sapphiretech.com/catapage_pd.asp?cataid=68&lang=eng

support of pcie 1.1:

http://ark.intel.com/products/34474/Intel-5400-Memory-Controller

spport of pci 2.0

"2cond gen pcie"

http://www.intel.com/content/www/us/en/chipsets/server-chipsets/server-chipset-5400.html

The 980 (300+ Watts) would need 3 X 6 pin PCI-E connections which would need to come from Molex connectors and or dual 6 pin to 8 pin connectors.  I see no reason why 1X 980 would not work EXCEPT that I don't know if the UEFI bios on the card will be an issue.   2X  980's and SLI in General is NOT Supported on the 3400 or 5400 or 7400.   2X 980's would require a 1250W power supply.    The Alienware model with 3X 980's has a 1500W power supply.

If you want to put 2 X 150 W cards in then you need to use CROSSFIRE and ATI cards.   Crossfire works fine in the 3400 5400 7400 with older non UEFI cards like the Radeon 5770.

Can I ask, why don't you think the PSU support the 970, 980 and 980ti?  I could easily be missing something but I currently have a GTX 580 card which requires 244W in my Precision T7400 (1000W) (note I had to mod the PSU cables to work with the required 6pin and 8pin).  The 980 requires 165W, which is obviously less than the 580 card, so why doesn't the PSU support the mentioned cards? 

I too am looking at upgrading my 580 card to one of the maxwell cards to utilise MFAA along with improve performance.  You mention the GTX960 2GB but are all of the other 960 cards compatible?  i.e. 4GB.  Could I run 2 960's on my Precision T7400?  2x 120W = 240W i.e. the same as the 580 card I'm currently running.

Thanks in advance.

Thanks for your swift reply.  I need to look into the UEFI bios issue myself.

The 980 card spec says it only require 2x6pins not 3 - http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-980/specifications

Saying that, I notice what the Nvidia spec mentions and what the actual cards you can buy have are two different things.  The EVGA 4GB cards all seem to require a single 8pin, when Nvidia mentions a single 6pin.

Also I definitely want to use an Nvidia card.

Thanks again.

Some models Especially the Super Clocked TI 4 gig versions have 1X 8 pin and 1X 6 pin.  Takes 2 Molex Hard Drive Connectors to power 1X 6 pin PCI-E plug.  See pictures below for Dual 6 pin and dual Molex adapters.  Less than 750W power supplies are not recommended for 225W+ video cards.

That means it comes with Dual 6 pin to 8 pin adapter AND needs another 6 pin for a 300+ Watt connection for the card.  2 6 pin is 225W and 1 6 pin is 150W.  No Aux power connections is 75W.